Maintenance & Service Guide HP Pro 3520 All-in-One Business PC
© Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and other countries. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set off in this manner provides important supplemental information.
iv About This Book
Table of contents 1 Product Features ............................................................................................................................................ 1 Overview .............................................................................................................................................. 1 Front Components ................................................................................................................................ 2 Side Components .............
Cleaning the Monitor .......................................................................................................... 13 Cleaning the Mouse ........................................................................................................... 14 Service Considerations ...................................................................................................................... 14 Tools and Software Requirements ..........................................................................
System Board Cover .......................................................................................................................... 61 Fan ..................................................................................................................................................... 63 Heat sink/thermal module ................................................................................................................... 65 Processor ........................................................
Performing a system recovery .......................................................................................................... 126 Using the Windows recovery tools ................................................................................... 126 Using f11 recovery tools .................................................................................................. 127 Using Windows 8 operating system media (purchased separately) ................................
1 Product Features Overview HP Pro 3520 All-in-One Business PC offers the following features: ● Integrated All-in-One form factor ● 20-inch, 16:9, WLED, 1600x900, anti-glare, 250 nit display ● Adjustable tilt stand ● Intel H61 chipset supporting Intel 2nd and 3rd generation processors featuring Intel HD Graphics ● Integrated Realtek RTL8171FH-CG Gigabit Ethernet Controller; Optional wireless connectivity ● Integrated low-light webcam with dual microphones ● Integrated audio card and stereo sp
Front Components 2 Component Component 1 Dual Microphone Array 4 Stereo speakers 2 Webcam 5 20 inch diagonal widescreen LCD HD anti-glare display 3 Webcam LED Chapter 1 Product Features
Side Components Component Component 1 Power button 5 6-in-1 media card reader 2 Optical disk drive 6 USB 3.
Rear Components 4 Component Component 1 Security lock slot 5 RJ-45 ethernet port 2 Adjustable tilt stand 6 USB 2.
2 Installing and Customizing the Software If your computer was not shipped with a Microsoft operating system, some portions of this documentation do not apply. Additional information is available in online help after you install the operating system. CAUTION: Do not add optional hardware or third-party devices to the computer until the operating system is successfully installed. Doing so may cause errors and prevent the operating system from installing properly. NOTE: Be sure there is a 10.
Downloading Windows 8 updates Microsoft may release updates to the operating system. To help keep the computer running optimally, HP recommends checking for the latest updates during the initial installation and periodically throughout the life of the computer. Run Windows Update as soon as possible after you set up your computer. 1. Point to the upper-right or lower-right corner of the Start screen to display the charms. 2. Click Settings > Change PC Settings > Windows Update. 3.
3 Serial ATA (SATA) Drive Guidelines and Features NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel ATA (PATA) drives are supported. SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable 7/7 Number of pins in power cable 15 Maximum data cable length 39.37 in (100 cm) Data interface voltage differential 400-700 mV Drive voltages 3.3 V, 5 V, 12 V Jumpers for configuring drive N/A Data transfer rate 3.
SMART ATA Drives The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert.
4 Routine Care, and Disassembly Preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
Removing DIPs* from vinyl tray 2,000 V 4,000 V 11,500 V Removing DIPs* from Styrofoam 3,500 V 5,000 V 14,500 V Removing bubble pack from PCB 7,000 V 20,000 V 26,500 V Packing PCBs in foam-lined box 5,000 V 11,000 V 21,000 V *These are then multi-packaged inside plastic tubes, trays, or Styrofoam. NOTE: 700 volts can degrade a product. Preventing Electrostatic Damage to Equipment Many electronic components are sensitive to ESD.
Grounding the Work Area To prevent static damage at the work area, use the following precautions: ● Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the work surface and properly grounded tools and equipment. ● Use static-dissipative mats, foot straps, or air ionizers to give added protection. ● Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle them only at static-free work areas.
Operating Guidelines To prevent overheating and to help prolong the life of the computer: ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow. ● Never restrict the airflow into the computer by blocking any vents or air intakes.
To clean the computer case, follow the procedures described below: ● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab. ● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water. ● For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will evaporate quickly and not leave a residue.
Cleaning the Mouse Before cleaning the mouse, ensure that the power to the computer is turned off. ● Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly. ● To clean the mouse body, follow the procedures in Cleaning the Computer Case on page 12.
Hard Drives Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares. ● If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging and label the package “Fragile: Handle With Care.” ● Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the CPU.
5 Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: 16 ● Change factory default settings. ● Set the system date and time. ● Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices. ● Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash media devices.
● Solve system configuration errors detected but not automatically fixed during the Power-On SelfTest (POST). ● Replicate the system setup by saving system configuration information on a USB device and restoring it on one or more computers. ● Execute self-tests on a specified ATA hard drive (when supported by drive). ● Enable or disable DriveLock security (when supported by drive).
Computer Setup—File NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Computer Setup—Storage NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-3 Computer Setup—Storage Option Description Device Configuration Lists all installed BIOS-controlled storage devices. When a device is selected, detailed information and options are displayed. The following options may be presented: ● Hard Disk: Size, model, firmware version, serial number, connector color.
Table 5-3 Computer Setup—Storage (continued) Storage Options eSATA Port Allows you to set a SATA port as an eSATA port for use with an external drive. Default is enabled. This setting affects only the port with the black connector, labeled as eSATA on the system board. This port should have the eSATA back panel connector attached to use eSATA drives. For more information, see the eSATA white paper at www.hp.com.
Table 5-3 Computer Setup—Storage (continued) DPS Self-Test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protection System (DPS) self-tests. NOTE: This selection will only appear when at least one drive capable of performing the DPS self-tests is attached to the system.
Computer Setup—Security NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-4 Computer Setup—Security Option Description Setup Password Allows you to set and enable a setup (administrator) password. NOTE: If the setup password is set, it is required to change Computer Setup options, flash the ROM, and make changes to certain plug and play settings under Windows. Power-On Password Allows you to set and enable a power-on password.
Table 5-4 Computer Setup—Security (continued) Slot Security Allows you to disable any PCI or PCI Express slot. Default is enabled. Network Boot Enables/disables the computer’s ability to boot from an operating system installed on a network server. (Feature available on NIC models only; the network controller must be either a PCI expansion card or embedded on the system board.) Default is enabled.
Table 5-4 Computer Setup—Security (continued) System Security (these options are hardware dependent) Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches. Default is enabled. SVM CPU Virtualization (enable/disable). Controls the virtualization features of the processor. Changing this setting requires turning the computer off and then back on. Default is disabled.
Table 5-4 Computer Setup—Security (continued) DriveLock Security Allows you to assign or modify a master or user password for hard drives. When this feature is enabled, the user is prompted to provide one of the DriveLock passwords during POST. If neither is successfully entered, the hard drive will remain inaccessible until one of the passwords is successfully provided during a subsequent cold-boot sequence.
Computer Setup—Power NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-5 Computer Setup—Power Option Description OS Power Management ● Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the processors power consumption when the processor is idle. Default is extended. ● Runtime Power Management— Enable/Disable.
Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 5-6 Computer Setup—Advanced (for advanced users) Option Heading Power-On Options Allows you to set: ● POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days). ◦ QuickBoot (default) = Do not clear memory or perform a memory test. ◦ FullBoot = Memory test (count) on cold boot. Clears memory on all boots. ◦ Clear Memory = No memory count on cold boot.
Table 5-6 Computer Setup—Advanced (for advanced users) (continued) BIOS Power-On Allows you to set the computer to turn on automatically at a time you specify. Onboard Devices Allows you to set resources for or disable Legacy devices. Select the Legacy device's IRQ, DMA, and I/O Range. The settings may not take effect for all operating systems. To hide a device from the operating system, see Security > Device Security.
Table 5-6 Computer Setup—Advanced (for advanced users) (continued) VGA Configuration Displayed only if there is an add-in video card in the system. Allows you to specify which VGA controller will be the “boot” or primary VGA controller. AMT Configuration Allows you to set: ● AMT (enable/disable). Allows you to enable or disable functions of the embedded Management Engine (ME) such as Active Management Technology (AMT).
6 Illustrated parts catalog Computer major components 30 Item Description Spare part number (1) Front bezel 709846-001 (2) Display panels (18.
Cables Description Spare part number (1) Hard drive cable 709826-001 (2) Optical drive cable 709827-001 Display cable (LVDS) (not illustrated) 709828-001 Converter cable (not illustrated) 709829-001 Webcam cable (not illustrated) 709830-001 Antenna (not illustrated) 709836-001 Cables 31
Boards Description (1) Spare part number System board (includes replacement thermal material) For use in models with Windows 8 with no Digital Product Key (DPK) 703643-001 For use in models with Windows 8 Standard 703643-501 For use in models with Windows 8 Professional 703643-601 (2) Converter board 697319-001 (3) Webcam module 709837-001 (4) Ralink RT5390R 802.11bgn 1x1 Wi-Fi Adapter (WLAN module) (802.
Description Spare part number Intel Pentium Dual-Core processors: ● G2130 processor, 3.2 GHz 715898-001 ● G2120 processor, 3.1 GHz 703282-001 ● G645 processor, 2.9 GHz 704228-001 ● G640 processor, 2.8 GHz 691935-001 Intel Celeron processors: ● G1620 processor, 2.7 GHz 715894-001 ● G550 processor, 2.6 GHz 691934-001 ● G540 processor, 2.
Misc Parts Description Spare part number (1) Heat sink/thermal module 709832-001 (2) Optical drive bracket 671558-001 (3) Speaker kit (includes left and right speakers) 709831-001 (4) Fan/blower 671582-001 Rubber grommet (for use in hard drive cage, not illustrated) 709840-001 Thermal pads PCH 709842-001 Vaxg 709843-001 Vcore 709844-001 Thermal pad, SODIMM 709845-001 Conductive tape (hard drive; 36mm x 11mm) 709841-001 AC adapter, 120W 665470-001 Mouse (USB, optical; not illustr
Thermal pads Description Spare part number Thermal pads PCH 709842-001 Vaxg 709843-001 Vcore 709844-001 Thermal pad, SODIMM 709845-001 Thermal pads 35
Mass storage devices (not illustrated) Description Spare part number Optical drive HP SuperMulti DVD Writer Drive (includes bezel) 657958-001 Hard drives 2-TB 616608-001 1.5-TB 613209-001 1-TB 621418-001 500-GB 621421-001 Sequential part number listing 36 Spare part number Description 596410-001 Mouse, USB, optical 613209-001 1.5 TB hard drive 616608-001 2 TB hard drive 621418-001 Hard drive, 1-TB 621421-001 Hard drive, 500-GB 638629-001 Intel Core i3 2120 processor, 3.
Spare part number Description 703282-001 Intel Pentium Dual-Core G2120 processor, 3.1 GHz 703643-001 System board for use in models with Windows 8 with no Digital Product Key (DPK) 703643-501 System board for use in models with Windows 8 Standard 703643-601 System board for use in models with Windows 8 Professional 704228-001 Intel Pentium Dual-Core G645 processor, 2.
38 Spare part number Description 709694-091 Keyboard, jade, wired, USB, Norway 709694-101 Keyboard, jade, wired, USB, Sweden 709694-111 Keyboard, jade, wired, USB, Switzerland 709694-131 Keyboard, jade, wired, USB, Portugal 709694-141 Keyboard, jade, wired, USB, Turkey 709694-151 Keyboard, jade, wired, USB, Greece 709694-171 Keyboard, jade, wired, USB, Arabic 709694-181 Keyboard, jade, wired, USB, Belgium 709694-211 Keyboard, jade, wired, USB, Hungary 709694-251 Keyboard, jade, wired,
Spare part number Description 709695-271 Keyboard, USB, Romania 709695-B41 Keyboard, USB, BHCSY 709695-BB1 Keyboard, USB, Hebrew/Israel 709695-DE1 Keyboard, USB, North Africa/Saudi Arabia 709695-DT1 Keyboard, USB, Czeck/Slovakia 709695-L31 Keyboard, USB, International English 709828-001 Display cable (LVDS) 709826-001 Hard drive cable 709827-001 Optical drive cable 709829-001 Display panel power cable 709830-001 Webcam cable 709831-001 Speaker kit (includes left and right speakers)
7 Removal and Replacement Procedures All-in One (AIO) Chassis The following sections provide information about disassembling various components of the computer. Preparing to Disassemble the Computer To avoid injury and equipment damage, always complete the following steps in order, when opening the computer. 1. Remove all media (CD, DVD, etc.) from the computer. 2. Shut down the computer. 3. After the system has completely shut down, disconnect the power adapter from the back of the computer. 4.
Rear Cover Description Spare part number Rear cover 709839-001 Remove the main rear cover to access internal components. The cover is secured by two captive Phillips screws. To remove the rear cover: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Loosen the captive two Phillips screws (1) that secure the cover to the computer. 3. Lift the cover off the computer (2). To replace the rear cover, reverse the removal procedures.
Stand Description Spare part number Stand 709838-001 The stand is secured with four screws that you can remove from the inside of the rear cover. To remove the stand: 42 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3. Position the rear cover to you can access the inside. 4. From the inside of the rear cover, remove the four screws that secure the stand to the cover. 5.
6. Slide the stand bracket through the slot in the rear cover, and then remove the stand from the rear cover. To replace the stand, reverse the removal procedures.
Memory Cover Remove the memory cover to access the memory modules (SODIMMs) and RTC battery. To remove the memory cover: 44 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41).
3. Lift the cover off the computer. To replace the rear cover, reverse the removal procedures.
Memory Description Spare part number 4 GB (PC3-12800) 689373-001 2 GB (PC3-12800) 689372-001 The memory modules are located under the memory cover. You must remove the memory cover to access the memory modules. The computer has two memory slots. The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) small outline dual inline memory modules (SODIMMs). The memory sockets on the system board can be populated with up to two industry-standard SODIMMs.
The DDR3-SDRAM SODIMMs must also: ● support CAS latency 11 DDR3 1600 MHz (11-11-11 timing) ● contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification In addition, the computer supports: ● 512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies ● single-sided and double-sided SODIMMS ● SODIMMs constructed with x8 and x16 devices; SODIMMs constructed with x4 SDRAM are not supported NOTE: The system will not operate properly if you install unsupported SODIMMs.
RTC Battery The RTC battery is located under the memory cover. To remove the RTC battery: 48 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3. Remove the memory cover (see Memory Cover on page 44). 4. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out (1).
5. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up. Push the other edge down until the clamp snaps over the other edge of the battery (2).
Optical Drive Description Spare part number HP SuperMulti DVD Writer Drive (includes bezel) 657958-001 Optical drive bracket 671558-001 The optical drive is located on the left side of the computer (viewed from behind). It is secured with one screw. To remove the optical drive: 50 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3.
4. Use the bracket to push the drive out of the bay, and then slide the drive out of the computer (2). 5. If you need to remove the bracket from the optical drive, remove the two Phillips screws that secure the bracket to the drive, and then remove the bracket from the drive. To install an optical drive, reverse the removal procedures.
Hard Drive Description Spare part number 2-TB 616608-001 1.5-TB 613209-001 1-TB 621418-001 500-GB 621421-001 Conductive tape (hard drive; 36mm x 11mm) 709841-001 The hard drive is located on the left side of the computer (viewed from behind). The drive is secured with one captive screw and is housed in a removable cage. 52 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3.
4. Lift and grasp the handle on top of the hard drive cage (2) and slide the cage toward the outer edge of the computer, then lift the cage out of the computer (3). 5. Remove the four mounting Phillips screws (1) that secure the drive to the cage. Do not remove the blue rubber grommets behind each screw. They must stay attached to the cage when installing a new hard drive. 6. Slide the hard drive out of the cage (2). To replace the hard drive, reverse the removal procedures.
Converter Board Description Spare part number Converter board 697319-001 The converter board is located on the left side of the computer. It is secured with two screws and has two connectors. To remove the converter board: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3. Disconnect the two cables from the board (1).
4. Remove the two screws (2) that secure the board to the computer. 5. Lift the converter board from the computer. To install the converter board, reverse the removal procedures. Multiple display panels are available for this computer. The panels use the same converter board spare part. You must position the jumpers on the converter board based on the display panel installed. Please refer to the table on the base pan near the converter board for the appropriate jumper settings on the converter board.
Speakers Description Spare part number Speaker kit (includes left and right speakers) 709831-001 The speakers are located at the bottom of the computer. Two separate speakers are each secured by two screws. One cables connects both speakers to the system board. The speakers are also wired to each other with a connector. To remove the speakers: 56 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3.
4. Disconnect the speaker cable (2) from the system board. 5. Remove the speakers from the computer. To install the speakers, reverse the removal procedures. NOTE: The speakers are connected together by a connector.
Webcam Module Description Spare part number Webcam module 709837-001 The webcam module is located at the top of the computer. It is housed in a bracket that is secured with two Torx screws. The webcam board is secured to the bracket with two screws and has one connector. To remove the webcam module: 58 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41).
3. Remove the Torx screw (1) that secures the module to the computer, and lift the module from the computer as far as the cable allows (2). 4. Disconnect the cable from the module, and then remove the module from the computer.
5. Remove the webcam from the bracket by removing the two Phillips screws that secure it to the bracket and then removing the webcam from the bracket. To install a webcam module, reverse the removal procedures.
System Board Cover The system board cover protects the system board. It is secured with two screws. To remove the system board cover: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41).
3. Remove the two Torx screws that secure the cover to the computer. 4. Lift the cover off the computer. To install the system board cover, reverse the removal procedures.
Fan Description Spare part number Fan 671582-001 The fan is located in the middle of the computer. It is secured with three screws. To remove the fan: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3. Remove the system board cover (see System Board Cover on page 61). 4. Remove the three screws (1) that secure the fan to the computer.
5. Disconnect the fan cable (2) from the system board connector. 6. Lift the fan and remove it from the computer (3). To install the fan, reverse the removal procedures.
Heat sink/thermal module Description Spare part number Heat sink/thermal module 709832-001 The heat sink is secured with four captive Torx screws and one non-captive Torx screw. To remove the heat sink: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3. Remove the system board cover (see System Board Cover on page 61).
4. Remove the non-captive Torx screw (1) on the left side of the heat sink, and then loosen the four captive screws (2) on the right side of the heat sink. Be sure to loosen and tighten the screws in an alternating pattern. 5. Lift the heat sink up and off the computer. To replace the heat sink, reverse the removal procedures. NOTE: 66 Tighten the four captive heat sink screws in an alternating pattern.
Processor Description Spare part number Intel Core i3 3240 processor, 3.4 GHz 688951-001 Intel Core i3 3225 processor, 3.3 GHz 689578-001 Intel Core i3 3220 processor, 3.3 GHz 688950-001 Intel Core i3 3210 processor, 3.2 GHz 715895-001 Intel Core i3 2130 processor, 3.4 GHz 665120-001 Intel Core i3 2120 processor, 3.3 GHz 638629-001 Intel Pentium Dual-Core G2130 processor, 3.2 GHz 715898-001 Intel Pentium Dual-Core G2120 processor, 3.
7. Carefully lift the processor from the socket (3). CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and handling them could cause irreparable damage. Once pins are damaged it may be necessary to replace the system board. The heat sink must be installed within 24 hours of installing the processor to prevent damage to the processor’s solder connections.
Drive Cables and Connector Description Spare part number Optical drive connector cable 709827-001 Hard drive connector cable 709826-001 Both the optical drive connector and the hard drive connectors are secured with two screws and have two cables that connect to the system board. The optical drive connector is larger and uses larger screws. To remove the optical drive connector: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2.
9. Remove the connector from the computer. To install the drive connectors, reverse the removal procedures.
WLAN Module Description Spare part number Ralink RT5390R 802.11bgn 1x1 Wi-Fi Adapter (WLAN module) 701396-001 The WLAN module is located on the bottom left of the system board. To remove the WLAN module: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2. Remove the rear cover (see Rear Cover on page 41). 3. Remove the memory cover (see Memory Cover on page 44).
72 4. Disconnect the antenna cables from the module. 5. Remove the Phillips screws that secure the module to the system board.
6. Lift the module to a 45-degree angle, and then pull it away to remove it from the socket. To install the WLAN module, reverse the removal procedures. NOTE: WLAN modules are designed with a notch to prevent incorrect insertion. When connecting the antenna cables to the WLAN module, match the cable colors and labels on the cables with the labels on the module.
System Board Description Spare part number System board for use in models with Windows 8 with no Digital Product Key (DPK) 703643-001 System board for use in models with Windows 8 Standard 703643-501 System board for use in models with Windows 8 Professional 703643-601 Thermal pads, PCH 709842-001 Thermal pads, Vagx 709843-001 Thermal pads, Voore 709844-001 Thermal pads, SODIMM 709845-001 The system board is secured with nine screws. To remove the system board: 74 1.
10. Remove the nine screws (circled in image) that secure the system board to the computer. 11. Lift the system board straight up and out of the computer. To install the system board, reverse the removal procedures. Note the thermal pad locations and replace any that are damaged.
76 Chapter 7 Removal and Replacement Procedures All-in One (AIO) Chassis
Front Bezel Description Spare part number Front bezel 709846-001 The front bezel is located on the front of the computer and is secured to the display panel bracket with 11 screws and 10 tabs. You can remove the bezel without removing most of the main computer components, which the following procedure demonstrates. To remove the front bezel while removing the minimal number of components: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 40). 2.
6. Lift the computer from the bezel, removing lifting the tabs as necessary to remove it. To install the front bezel, reverse the removal procedures.
Display Panel Description Spare part number Display panel, WLED, 18.5-inch, non-ZBD, 200 nits—Samsung 709833-001 Display panel, WLED, 18.5-inch, non-ZBD, 200 nits—CMI 709835-001 Display panel, WLED, 18.5-inch, non-ZBD, 200 nits—LG 709834-001 The display panel is secured to the display bracket with four screws (two on each side). For Samsung and LG panels, the screws are on the right and left sides. For CMI panels, the screws are on the top and bottom.
5. Remove the four screws that secure the display panel to the bracket. Each panel is secured with two screws on opposite sides of the bracket. Samsung and LG panels use screw holes on left and ride sides. CMI panels use screw holes on the top and bottom sides. Samsung and LG panels: CMI panels: 6. Disconnect the cable that connects the display panel to the converter board. 7. Lift the bracket assembly from the bottom side of the display. 8. Disconnect the display cable from the display panel. 9.
Multiple display panels are available for this computer. The panels use the same converter board spare part. You must position the jumpers on the converter board based on the display panel installed. Please refer to the table on the base pan near the converter board for the appropriate jumper settings on the converter board.
A Troubleshooting Without Diagnostics This chapter provides information on how to identify and correct minor problems, such as USB devices, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.
● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to Helpful Hints on page 83 in this guide. To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at: http://www.hp.com/ go/ispe. Access the Business Support Center (BSC) at http://www.hp.
● Wake the computer by pressing any key on the keyboard or pressing the power button. If the system remains in suspend mode, shut down the computer by pressing and holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if it is set to power on automatically as soon as power is restored in Computer Setup.
Solving General Problems You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Cursor will not move using the arrow keys on the keypad. Cause Solution The Num Lock key is turned on. Press the Num Lock key. The Num Lock light must be off if you want to use the arrow keys on the keypad. You can also disable or enable the Num Lock key in Computer Setup at Advanced > Device Options. There is no sound or sound volume is too low. Cause Solution System volume may be set low or muted. 1.
Table A-1 Solving General Problems (continued) Poor performance. Cause Solution Virus resident on the hard drive. Run virus protection program. Too many applications running. Windows 7: 1. Close unnecessary applications to free up memory. 2. Add more memory. 3. Some applications run in the background and can be closed by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup: In Windows 7: a.
Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing). Cause Solution Processor thermal protection activated: 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins.
Solving Power Problems Common causes and solutions for power problems are listed in the following table. Table A-2 Solving Power Problems Power supply shuts down intermittently. Cause Solution If equipped with a voltage selector, voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V). Select the proper AC voltage using the selector switch. Power supply will not turn on because of internal power supply fault. Replace the power supply.
Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region. 2.
Solving Hard Drive Problems Table A-3 Solving Hard Drive Problems Hard drive error occurs. Cause Solution Hard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer, and rightclick on a drive. Select Properties, and then select the Tools tab. Under Error-checking click Check Now. In Windows 8, on the Start screen type e, and then select File Explorer from the list of applications.
Nonsystem disk/NTLDR missing message. Cause Solution The system is trying to start from the hard drive but the hard drive may have been damaged. 1. Perform Drive Protection System (DPS) testing in system ROM. System files missing or not properly installed. 1. Insert bootable media and restart the computer. 2. Boot to the windows installation media and select the recovery option. If only a restore kit is available, then select the File Backup Program option, and then restore the system. 3.
Computer seems to be locked up. Cause Solution Program in use has stopped responding to commands. 1. Use the task manager to close programs that do not respond. 2. Attempt the normal Windows “Shut Down” procedure. If this fails, press the power button for four or more seconds to turn off the power. To restart the computer, press the power button again.
Solving Media Card Reader Problems Table A-4 Solving Media Card Reader Problems Media card will not work in a digital camera after formatting it in Windows. Cause Solution By default, Windows will format any media card with a capacity greater than 32MB with the FAT32 format. Some digital cameras use the FAT (FAT16 & FAT12) format and can not operate with a FAT32 formatted card.
Do not know how to remove a media card correctly. Cause Solution The computer’s software is used to safely eject the card. In Windows 7, click Start, select Computer, right-click on the corresponding drive icon, and then select Eject. Pull the card out of the slot. In Windows 8, on the Start screen, type e, and then click File Explorer from the list of applications. Expand Computer, right-click on the corresponding drive icon, and then select Eject. Pull the card out of the slot.
Solving Display Problems If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table. Table A-5 Solving Display Problems Blank screen (no video). Cause Solution Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on. Bad monitor. Try a different monitor. The cable connections are not correct.
Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Pre-video memory error. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board.
Blurry video or requested resolution cannot be set. Cause Solution If the graphics controller was upgraded, the correct graphics drivers may not be loaded. Install the video drivers included in the upgrade kit. Monitor is not capable of displaying requested resolution. Change requested resolution. Graphics card is bad. Replace the graphics card. The picture is broken up, rolls, jitters, or flashes. Cause Solution The monitor connections may be incomplete or the monitor may be incorrectly adjusted.
“Out of Range” displays on screen. Cause Solution Video resolution and refresh rate are set higher than what the monitor supports. Restart the computer and enter Safe Mode. Change the settings to a supported setting then restart the computer so that the new settings take effect. To enter Safe Mode in Windows 7: 1. Restart the computer. 2. Press and hold the F8 key as your computer restarts, before the Windows logo appears. If the Windows logo appears, you must restart the computer and try again. 3.
Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or unable to center the picture on the screen (flat panel monitors using an analog VGA input connection only). Cause Solution Flat panel monitor’s internal digital conversion circuits may be unable to correctly interpret the output synchronization of the graphics card. 1. Select the monitor’s Auto-Adjustment option in the monitor’s on-screen display menu. 2.
Solving Audio Problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table. Table A-6 Solving Audio Problems Sound cuts in and out. Cause Solution Processor resources are being used by other open applications. Shut down all open processor-intensive applications. Sound does not come out of the speaker or headphones. Cause Solution Software volume control is turned down or muted.
Table A-6 Solving Audio Problems (continued) Sound does not come out of the speaker or headphones. Cause Solution Some applications can select which audio output device is used. Make sure the application has selected the correct audio device. The operating system controls may be set to use a different audio device as the default output device than what is expected. Set the operating system to use the correct audio device. Sound from headphones is not clear or muffled.
Table A-6 Solving Audio Problems (continued) There is no sound or sound volume is too low. Cause Solution Some applications can select which audio output device is used. Make sure the application has selected the correct audio device. The operating system controls may be set to use a different audio device as the default output device than what is expected. Set the operating system to use the correct audio device.
Table A-7 Solving Printer Problems (continued) Printer prints garbled information. Cause Solution The cables may not be connected properly. Reconnect all cables. Printer memory may be overloaded. Reset the printer by turning it off for one minute, then turn it back on. Printer will not print. Cause Solution The printer may be out of paper. Check the paper tray and refill it if it is empty.
Solving Keyboard and Mouse Problems If you encounter keyboard or mouse problems, see the documentation that came with the equipment and to the common causes and solutions listed in the following table. Table A-8 Solving Keyboard Problems A wireless keyboard/mouse is not working correctly. Symptoms include lagging mouse movement, jumpy mouse/ keyboard, or no function of mouse/keyboard and external drive. Cause Solution If your computer is equipped with USB 3.0 ports, connected USB 3.
Table A-9 Solving Mouse Problems Mouse does not respond to movement or is too slow. Cause Solution Mouse connector is not properly plugged into the back of the computer. Shut down the computer using the keyboard. Windows 7: 1. Press the Ctrl and Esc keys at the same time (or press the Windows logo key) to display the Start menu. 2. Use the arrow keys to select Shut Down and then press Enter. 3.
Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows automatically recognizes the device and configures the computer. If you install a non-plug and play device, you must reconfigure the computer after completing installation of the new hardware. In Windows, use the Add Hardware Wizard and follow the instructions that appear on the screen.
Computer will not start. Cause Solution Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location. 1. Review the documentation that came with the system to determine if you are using the correct memory modules and to verify the proper installation. NOTE: DIMM1 or XMM1 must always be installed. On all computers except the USDT, DIMM1 must be installed before DIMM2, and DIMM3 must be installed before DIMM4. 2.
Power LED flashes Red ten times, once every second, followed by a two second pause, and the computer beeps ten times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Bad option card. 1. Check each option card by removing the cards one at time (if multiple cards), then power on the system to see if fault goes away. 2. Once bad card is identified, remove and replace bad option card. 3. Replace the system board.
Network driver does not detect network controller. Cause Solution Network controller is disabled. 1. Run Computer Setup and enable network controller. 2. Enable the network controller in the operating system using Device Manager. To access Device Manager in Windows 7, click Start, select Control Panel, and then select Device Manager. To access Device Manager in Windows 8, from the Start screen, type c, select Control Panel from the list of applications, and then select Device Manager.
Diagnostics reports a failure. Cause Solution The cable is not securely connected. Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device. The cable is attached to the incorrect connector. Ensure that the cable is attached to the correct connector. There is a problem with the cable or a device at the other end of the cable. Ensure that the cable and device at the other end are operating correctly.
Table A-11 Solving Network Problems (continued) Network controller stops working without apparent cause. Cause Solution The cable is not securely connected. Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device. The network controller is defective. Contact an authorized service provider. New network card will not boot.
Table A-12 Solving Memory Problems System will not boot or does not function properly after installing additional memory modules. Cause Solution A memory module is not installed in the DIMM1 or XMM1 socket. Ensure that a memory module is installed in the DIMM1 or XMM1 socket on the system board. This socket must be populated with a memory module. Memory module is not the correct type or speed grade for the system or the new memory module is not seated properly.
Solving Processor Problems If you encounter processor problems, common causes and solutions are listed in the following table. Table A-13 Solving Processor Problems Poor performance is experienced. Cause Solution Processor is hot. 1. Make sure the airflow to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heat sink is installed properly.
Table A-14 Solving CD-ROM and DVD Problems (continued) System will not boot from CD-ROM or DVD drive. Cause Solution Network Boot is enabled in Computer Setup. Run the Computer Setup utility and disable Network Boot in Security > Network Boot. Non-bootable CD in drive. Try a bootable CD in the drive. Boot order not correct. Run the Computer Setup utility and change boot sequence in Storage > Boot Order. Drive not found (identified). Cause Solution Cable could be loose. Check cable connections.
Cannot eject compact disc (tray-load unit). Cause Solution Disc not properly seated in the drive. Turn off the computer and insert a thin metal rod into the emergency eject hole and push firmly. Slowly pull the tray out from the drive until the tray is fully extended, then remove the disc. CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start. Cause Solution Media is corrupt. Try different media to confirm whether media is valid. Media has been inserted upside down.
Solving USB Flash Drive Problems If you encounter USB flash drive problems, common causes and solutions are listed in the following table. Table A-15 Solving USB Flash Drive Problems USB flash drive is not seen as a drive letter in Windows. Cause Solution The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows. USB flash drive not found (identified).
Solving Front Panel Component Problems If you encounter problems with devices connected to the front panel, refer to the common causes and solutions listed in the following table. A USB device, headphone, or microphone is not recognized by the computer. Cause Solution Device is not properly connected. 1. Turn off the computer. 2. Reconnect the device to the front of the computer and restart the computer. The device does not have power.
Unable to connect to the Internet. Cause Solution IP address is not configured properly. Contact your ISP for the correct IP address. Cookies are corrupted. (A “cookie” is a small piece of information that a Web server can store temporarily with the Web browser. This is useful for having the browser remember some specific information that the Web server can later retrieve.) Windows 7: 1. Select Start > Control Panel. 2. Click Internet Options. 3.
Solving Software Problems Most software problems occur as a result of the following: ● The application was not installed or configured correctly. ● There is insufficient memory available to run the application. ● There is a conflict between applications. ● Be sure that all the needed device drivers have been installed. ● If you have installed an operating system other than the factory-installed operating system, check to be sure it is supported on the system.
Computer will not continue after HP logo screen displays. Cause Solution System files may be damaged. In Windows 7, use recovery media to scan hard drive for errors, or use Windows Startup Repair to fix problems that might prevent Windows from starting correctly. Windows Startup Repair is one of the recovery tools in the System Recovery Options menu. You can also create a system repair disc that contains the System Recovery Options menu.
Contacting Customer Support For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you, visit http://www.hp.com. NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service, remember to provide the setup and power-on passwords if they are set. Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical assistance.
B HP PC Hardware Diagnostics If HP Support Assistant is unable to detect a problem, try the UEFI-based hardware diagnostic solution that HP includes on all products. You can use this tool even if the computer will not boot to the operating system. This tool also works with components not diagnosed in HPSA. Why run HP PC Hardware Diagnostics The HP PC Hardware Diagnostic tools simplify the process of diagnosing hardware issues and expedite the support process when issues are found.
Downloading HP PC Hardware Diagnostics to a USB device 1. Go to http://www.hp.com. 2. Click the Support & Drivers link. 3. Select the Drivers & Software tab. 4. Enter the product name in the text box and click Search. 5. Select your specific computer model. 6. Select your operating system. 7. In the Diagnostic section, click the HP UEFI Support Environment link. This link provides additional information. - or Click the Download button and select Run.
C Backup and recovery in Windows 8 To protect your information, use Windows Backup and Restore to back up individual files and folders, back up your entire hard drive, create system repair media, or create system restore points. In case of system failure, you can use the backup files to restore the contents of your computer. From the Start screen, type restore, click Settings, and then select from the list of displayed options.
NOTE: The backup process may take over an hour, depending on file size and the speed of the computer. 1. From the Start screen, type backup, click Settings, and then select from the list of displayed options. 2. Follow the on-screen instructions to set up your backup, create a system image, or create system repair media.
3. If the Windows partition and the HP Recovery partition are listed, restart the computer after Windows has loaded, and then press and hold Shift while clicking Restart. NOTE: If the computer fails to boot to Windows after several attempts, the system will boot to the Windows Recovery Environment by default. 4. Select Troubleshoot, select Advanced Options, and then select Automatic Repair. 5. Follow the on-screen instructions.
NOTE: This process takes several minutes. 1. If possible, back up all personal files. 2. Restart the computer, and then follow the instructions provided with the Windows 8 operating system media to install the operating system. 3. When prompted, press any keyboard key. 4. Follow the on-screen instructions. After the repair is completed: 1. Remove the Windows 8 operating system media, and then insert the Driver Recovery media. 2.
D POST Error Messages This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition. POST Message Disabled suppresses most system messages during POST, such as memory count and non-error text messages. If a POST error occurs, the screen will display the error message.
POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. NOTE: The computer will beep once after a POST text message is displayed on the screen. Control panel message Description Recommended action 101-Option ROM Checksum Error System ROM or expansion board option ROM checksum. 1. Verify the correct ROM. 2. Flash the ROM if needed. 3. Clear CMIS. 4.
Control panel message Description Recommended action 201-Memory Error RAM failure. 1. Ensure memory modules are correctly installed. 2. Verify proper memory module type. 3. Remove and replace the identified faulty memory module(s). 4. If the error persists after replacing memory modules, replace the system board. A memory module in memory socket identified in the error message is missing critical SPD information, or is incompatible with the chipset. 1. Verify proper memory module type. 2.
Control panel message Description Recommended action 921-Device in PCI Express slot failed to initialize There is an incompatibility/problem with this device and the system or PCI Express Link could not be retrained to an x1. Try rebooting the system. If the error reoccurs, the device may not work with this system 1720-SMART Hard Drive Detects Imminent Failure Hard drive is about to fail. (Some hard drives have a hard drive firmware patch that will fix an erroneous error message.) 1.
Control panel message Description Recommended action 2201-MEBx Module did not checksum correctly Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM. 1. Reboot the computer. 2. Unplug the power cord, re-seat the memory modules, and reboot the computer. 3. If the memory configuration was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer. 4. If the error persists, replace the system board. 1.
Control panel message Description Recommended action 2219-USB Key Provisioning file has invalid header identifier Provisioning file contained on the USB key has been corrupted or is not a valid version for the current ME firmware. 1. Recreate the provisioning file using third party management console software. 2. If the error persists and system BIOS has been recently updated, restore previous system BIOS version. Otherwise, update the ME firmware version. 3.
Control panel message Description Recommended action Network Server Mode Active and No Keyboard Attached Keyboard failure while Network Server Mode enabled. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. Parity Check 2 Parity RAM failure or a PCI/PCIe device is asserting a SERR#. Run Computer Setup and Diagnostic utilities.
Activity Beeps Possible Cause Recommended Action Red Power LED flashes two times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 2 Thermal protection activated: 1. Clean the air vents on the front, back, or any other vented side of the computer. Air flow is restricted, a fan may not be functioning, or the heatsink is not properly attached. 2. Ensure that there is a 10.
Activity Beeps Possible Cause Recommended Action Red Power LED flashes six times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 6 Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board.
Activity Beeps Possible Cause Recommended Action Red Power LED flashes twelve iteration but LEDs continue until problem is solved. 12 MXM thermal shutdown. 1. Clean the MXM graphics card heat sink. 2. Replace the MXM graphics card heat sink. 3. Replace the MXM graphic card. System does not power on and LEDs are not flashing. None System unable to power on. Press and hold the power button for less than 4 seconds.
E Power Cord Set Requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) IMQ Austria (1) OVE Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) CSA Sweden (1) SEMKO Denmark (1) DEMKO Switzerland (1) SEV Finland (1) SETI United Kingdom (1) BSI France (1) UTE United States (2) UL Germany (1) VDE 1.
F Specifications All-in One Model Desktop Dimensions Width 19.94 in 50.7 cm Depth 3.98 in 10.1 cm Height 15.75 in 40.0 cm Approximate Weight (includes stand) 13.8 lb 6.
Index A access panel, locked 86 antenna, spare part number 39 audible codes 135 audio problems 101 31, B Backup and Restore 125 battery disposal 15 beep codes 135 blower spare part number 34, 36 booting options Full Boot 129 Quick Boot 129 C cable pinouts SATA data 7 cables, spare part numbers 31 cautions AC power 9 cables 14 electrostatic discharge 9 keyboard cleaning 13 keyboard keys 13 CD-ROM or DVD problems 114 cleaning computer 12 mouse 14 safety precautions 12 components front 2, 3 rear 4 computer
M mass storage devices, spare part numbers 36 Media Card Reader problems 94 memory module removing 46 spare part numbers 32 memory problems 112 monitor problems 96 mouse cleaning 14 mouse problems 105 mouse, spare part number 34 N network problems 109 numeric error codes 130 O opening the computer 40 operating guidelines 12 optical drive removing 50 spare part number 36 optical drive cable, spare part number 31, 39 optical drive connector removing 69 optical drive problems 114 overheating, prevention 12 P P
webcam module removing 58 spare part number 32 Windows 8 operating system DVD 127 WLAN module removing 71 spare part number 32 144 Index
