Precision 3450 Small Form Factor Service Manual Regulatory Model: D15S Regulatory Type: D15S104 March 2021 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2020-2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
1 Working inside your computer Topics: • Safety instructions Safety instructions Prerequisites Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist: ● You have read the safety information that shipped with your computer.
Steps 1. Save and close all open files and exit all open applications. 2. Shut down your computer. Click Start > Power > Shut down. NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions. 3. Disconnect your computer and all attached devices from their electrical outlets. 4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
● Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace may take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.
ESD protection summary It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
2 Disassembly and reassembly Topics: • • • • • • • • • • • • • • • • • • • • • Recommended tools Screw List Major components of your system Side cover Intrusion switch Front bezel Hard-drive assembly Hard-drive and optical-drive module Optical drive Solid-state drive WLAN card SD card reader - optional Expansion card Memory modules Heat sink Coin-cell battery Processor Power switch Power-supply unit System fan System board Recommended tools The procedures in this document may require the following tools:
Table 1. Screw list (continued) Component Screw type Quantity Support bracket M6x32 2 Power supply unit M6x32 2 System board M2x4 1 6-32 5 Image Major components of your system 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Side cover Memory module I/O panel Fan and Heat-sink assembly Processor Solid-state drive Power button System board Chassis Front bezel 3.
Steps 1. Slide the release latch to unlock the side cover. 2. Slide the side cover towards the back of the system. 3. Lift the side cover from the system.
Installing the side cover Prerequisites About this task The following image indicates the location of the side panels and provides a visual representation of the installation procedure.
Steps 1. Place the side cover on your computer. 2. Slide the side cover towards the front of the system till you hear the release latch click. Next steps 1. Follow the procedure in after working inside your computer. Intrusion switch Removing the intrusion switch Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the Side cover About this task The following images indicate the location of the intrusion switch and provide a visual representation of the removal procedure.
About this task The following image indicates the location of the intrusion switch and provides a visual representation of the installation procedure. Steps 1. Slide the intrusion switch into the slot on the chassis. 2. Connect the intrusion switch cable to the connector on the system board. . Next steps 1. Install the Side cover 2. Follow the procedure in After working inside your computer. Front bezel Removing the front bezel Prerequisites 1. Follow the procedure in before working inside your computer.
Steps 1. Pry the retention tabs to release the front bezel from the system. 2. Rotate and remove the front bezel from the system. Installing the front bezel Prerequisites About this task The following image indicates the location of the front bezel and provides a visual representation of the installation procedure.
Steps 1. Align the bezel and insert the retention tabs on the bezel into the slots on the system. 2. Press the bezel until the retention tabs click into place. Next steps 1. Install the side cover. 2. Follow the procedure in after working inside your computer. Hard-drive assembly Removing the 2.5 in. hard-disk drive assembly Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel.
Steps 1. Disconnect the hard-disk drive data cable and power cable from the connectors on the hard-disk drive. 2. Push the release tab and slightly lift the hard-disk drive assembly. 3. Release the hard-disk drive assembly from the notch and slide the hard-disk drive assembly out. NOTE: Note the orientation of the hard-disk drive so that you can replace it correctly. Removing the hard-disk drive bracket Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer.
Steps 1. Pull one side of the hard-disk drive bracket to disengage the pins on the bracket from the slots on the drive. 2. Slide the hard-disk drive out of the bracket 3. Hard-disk drive bracket for the 2.5 in. hard-disk drive. 4. 2.5 in. hard-disk drive. Installing the hard-disk drive bracket Prerequisites About this task The following image indicates the location of the hard-disk drive bracket and provides a visual representation of the installation procedure.
Steps 1. 2.5 in. hard-disk drive. 2. Hard-disk drive bracket for the 2.5 in. hard-disk drive. 3. Align and insert the pins on the drive bracket with the slots on the hard-disk drive. 4. 2.5 in. hard-disk drive assembly. Next steps 1. 2. 3. 4. Install the 2.5 in. hard-disk drive assembly. Install the front bezel. Install the side cover. Follow the procedure in after working inside your computer. Installing the 2.5 in.
Steps 1. Insert the hard-disk drive assembly into the slot on the system and slide the hard-disk drive assembly down. 2. Press down the hard-disk drive assembly, until it clicks into place. 3. Connect the power cable and hard-disk drive cable to the connectors on the hard-disk drive. Next steps 1. Install the front bezel. 2. Install the side cover. 3. Follow the procedure in after working inside your computer.
Steps 1. Remove the hard-disk drive power cable and the SATA cable through the recess in the release latch.
2. Unroute the optical-disk drive cable and the hard-disk drive cable from the retention clip on the hard-disk drive and optical-disk drive module. 3. Slide the release latch to unlock the hard-disk drive and optical-disk drive module. 4. Holding the release latch lift the hard-disk drive and optical-disk drive module. 5. Lift the hard-disk drive and optical-disk drive module and slide it out of the slot. 6.
Steps 1. Connect the optical-drive data and power cable to the connectors on the optical-drive and flip the hard-disk drive and optical-disk drive module. 2. Insert the tabs on the hard-disk drive and optical-disk drive module into the slot on the system at an angle. 3. Lower the hard-disk drive and optical-disk drive module into the slot. 4. Slide the release latch to lock the hard-disk drive and optical-disk drive module. 5.
About this task The following images indicate the location of the slim optical-drive and provide a visual representation of the removal procedure. Steps 1. Press the release tab on the optical-drive/ hard-drive module. 2. Slide the optical-drive out of the optical-drive/ hard-drive module. 3. Optical-drive unit. 4. Optical-drive/ hard-drive module.
Steps 1. Optical drive/ hard drive module. 2. Optical drive unit. 3. Insert the optical drive into the optical drive/ hard drive module. 4. Press the Optical drive unit until it clicks in place. Next steps 1. Install the Front bezel 2. Install the Side cover 3. Follow the procedure in After working inside your computer. Solid-state drive Removing the M.2 2230 PCIe solid-state drive Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3.
4. Remove the 2.5 in. hard drive assembly. About this task The following images indicate the location of the solid-state drive and provide a visual representation of the removal procedure. Steps 1. Remove the screw (M2x3) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.
Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector. 2. Insert the solid-state drive at a 45-degree angle into the connector on the system board. 3. Replace the screw (M2x3) that secures the M.2 2230 PCIe solid-state drive to the system board. Next steps 1. 2. 3. 4. Install the 2.5 in. hard drive assembly. Install the front bezel. Install the side cover. Follow the procedure in after working inside your computer. Removing the M.
Steps 1. Remove the screw (M2x3) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.2 2280 PCIe solid-state drive Prerequisites About this task The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.
Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector. 2. Insert the solid-state drive at a 45-degree angle into the connector on the system board. 3. Replace the screw (M2x3) that secures the M.2 2280 PCIe solid-state drive to the system board. Next steps 1. 2. 3. 4. Install the 2.5 in. hard drive assembly. Install the front bezel. Install the side cover. Follow the procedure in after working inside your computer.
Steps 1. Remove the (M2x3) screw that secures the WLAN bracket and WLAN card to the system board. 2. Slide and lift the WLAN card bracket away from the WLAN card. 3. Disconnect the antenna cables from the WLAN card. 4. Slide and remove the WLAN card from the connector on the system board. Installing the WLAN card Prerequisites About this task The following image indicates the location of the wireless card and provides a visual representation of the installation procedure.
Steps 1. Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card of your computer. Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black 2. Place the WLAN card bracket to secure the antenna cables. 3. Align the notch on the WLAN card with the tab on the WLAN-card slot and insert it into the connector on the system board. 4.
SD card reader - optional Removing the SD card reader Prerequisites 1. 2. 3. 4. 5. Follow the procedure in Before working inside your computer. Remove the Side cover Remove the Front bezel Remove the Hard drive assembly Remove the Optical drive assembly About this task The following images indicate the location of the graphics card and provide a visual representation of the removal procedure. Steps 1. Unroute the power supply cables from the retention clip on the SD card reader. 2.
Steps 1. Align the SD card reader with the screw holes on the system board and replace the two screws (M6X32). 2. Route the power supply cables through the retention clip on the SD card reader. Next steps 1. 2. 3. 4. 5. Install the Optical drive assembly Install the Hard drive assembly Install the Front bezel Install the Side cover Follow the procedure in After working inside your computer. Expansion card Removing the expansion card Prerequisites 1.
Steps 1. Pull the metal tab to open the expansion card latch. 2. Pull the release tab at the base of the expansion card. 3. Lift the expansion card away from the connector on the system board. Installing the expansion card Prerequisites About this task The following image indicates the location of the expansion card and provides a visual representation of the installation procedure.
Steps 1. Align the notch on the expansion card with the connector on the system board. 2. Place the card in the connector and press down firmly. Ensure that the card is firmly seated. 3. Close the expansion card latch and press it until it clicks into place. Next steps 1. Install the Side cover 2. Follow the procedure in After working inside your computer. Memory modules Removing the memory modules Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover.
3. Remove the front bezel. 4. Remove the 2.5 in. hard drive assembly. 5. Remove the hard-disk drive and optical-disk drive module . CAUTION: To prevent damage to the memory module, hold the memory module by the edges. Do not touch the components on the memory module About this task The following images indicate the location of the memory modules and provide a visual representation of the removal procedure. Steps 1. Pull the securing clips from the memory module until the memory module pops up. 2.
Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it. Next steps 1. 2. 3. 4. 5. Install the hard-disk drive and optical-disk drive module Install the 2.5 in. hard drive assembly. Install the front bezel. Install the side cover.
Steps 1. Disconnect the fan cable from the connector on the system board. 2. Loosen the four captive screws that secure the heat sink to the system. NOTE: Loosen the screws in a sequential order (1,2,3,4) as mentioned on the system board. 3. Lift the heat-sink from the system board. Installing the heat-sink Prerequisites About this task The following image indicates the location of the VR heat sink and provides a visual representation of the installation procedure.
Steps 1. Place the heat sink on the processor. 2. Tighten the four captive screws that secure the heat-sink to the system board, as per the callout on the system board. NOTE: Tighten the screws in a sequential order (1,2,3,4) as mentioned on the system board. 3. Connect the heat sink fan cable to the system board. Next steps 1. 2. 3. 4. Install the hard-disk drive and optical-disk drive module Install the front bezel. Install the side cover. Follow the procedure in after working inside your computer.
Steps 1. Using a plastic scribe, gently pry the coin-cell battery out of the battery socket. 2. Remove the coin-cell battery out of the system. Installing the coin-cell battery Prerequisites About this task The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure.
Steps 1. Insert the coin cell battery with the "+" sign facing up and slide it into the battery socket at an angle. 2. Press the battery into the connector until it clicks into place. Next steps 1. 2. 3. 4. Install the Expansion card. Install the Front bezel. Install the Side cover. Follow the procedure in after working inside your computer. Processor Removing the processor Prerequisites 1. 2. 3. 4. 5. 6. Follow the procedure in before working inside your computer. Remove the side cover.
Steps 1. Press down and push the release lever away from the processor to release it from the securing tab. 2. Lift the lever upward to lift the processor cover. CAUTION: When removing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 3. Gently lift the processor from the processor socket.
Steps 1. Align the pin-1 corner of the processor with the pin 1 corner of the processor socket, and then place the processor in the processor socket. NOTE: The pin-1 corner of the processor has a triangle that aligns with the triangle on the pin-1 corner on the processor socket. When the processor is properly seated, all four corners are aligned at the same height. If one or more corners of the processor are higher than the others, the processor is not seated properly. 2.
Power switch Removing the power switch Prerequisites 1. 2. 3. 4. 5. Follow the procedure in before working inside your computer. Remove the side cover. Remove the front bezel. Remove the 2.5 in. hard drive assembly. Remove the hard-disk drive and optical-disk drive module . About this task The following images indicate the location of the heat-sink and provide a visual representation of the removal procedure. Steps 1. Disconnect the power switch cable from the system board. 2.
About this task The following images indicate the location of the power-supply unit and provide a visual representation of the removal procedure.
Disassembly and reassembly
Steps 1. Remove the SATA cables from the retention clip on the support bracket. 2. Remove the two screws (M6x32) and slide the support bracket out from the slot. 3. Remove the power-supply cable from the retention clip on the chassis. 4. Remove the three screws (M6x32) that secure the power-supply unit to the back of the chassis. 5. Press the power-supply unit release latch and slide the unit into the chassis. 6. Remove the power-supply unit out of the chassis.
Disassembly and reassembly
Steps 1. Align and place the power-supply unit into the slot on the chassis. 2. Slide the power-supply unit into the slot until it clicks in place. 3. Replace the three screws (M6x32) to secure the power-supply unit to the chassis. 4. Insert the power-supply cables through retention clips and connect it to the connectors on the system board. 5. Place the support bracket into the slot and secure it with the two screws (M6x32). 6. Insert the SATA cables through the retention clip on the support bracket.
Next steps 1. 2. 3. 4. 5. Install the hard-disk drive and optical-disk drive module Install the 2.5 in. hard drive assembly. Install the Front bezel Install theSide cover Follow the procedure in After working inside your computer. System fan Removing the system fan Prerequisites 1. 2. 3. 4. 5. Follow the procedure in before working inside your computer. Remove the side cover. Remove the front bezel. Remove the 2.5 in. hard drive assembly. Remove the hard-disk drive and optical-disk drive module .
System board Removing the system board Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. Follow the procedure in before working inside your computer. Remove the side cover. Remove the front bezel. Remove the 2.5 in. hard drive assembly. Remove the solid-state drive. Remove the WLAN card. Remove the heat-sink. Remove the memory modules. Remove the processor. About this task The following images indicate the location of the system board and provide a visual representation of the removal procedure.
Disassembly and reassembly
Steps 1. Remove the screw (6-32) that secures the I/O panel to the system chassis. 2. Lift the I/O panel away from the system chassis. 3. Disconnect the intrusion switch cable from the connector on the system board. 4. Disconnect the system board power supply cables. 5. Disconnect the power button switch cable from the connector on the system board. 6. Disconnect the system fan cable to the connector on the system board. 7. Disconnect the processor power supply cable from the connector on the system board.
Disassembly and reassembly
Steps 1. Align and lower the system board into the system until the connectors at the back of the system board align with the slots on the chassis, and the screw holes on the system board align with the standoffs on the system. 2. Replace the four screws (6-32) and the single standoff screw (M2x4) screw to secure the system board to the chassis. 3. Reconnect the intrusion switch cable to the connector on the system board. 4.
11. Align and lower the I/O panel into the slot on the system chassis. 12. Replace the single screw (6-32) to secures the I/O panel to the system chassis. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. Install the processor. Install the memory modules. Install the heat-sink. Install the WLAN card. Install the solid-state drive. Install the 2.5 in. hard drive assembly. Install the front bezel. Install the side cover. Follow the procedure in after working inside your computer. System board layout 1. 3. 5. 7. 9. 11.
3 Drivers and downloads Topics: • Drivers and downloads Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ SLN128938.
4 System setup Topics: • • • • • Boot Sequence System setup options Flashing the BIOS Updating the BIOS in Windows System and setup password Boot Sequence Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive).
Table 3. System setup options—System information menu (continued) Overview Processor Type Displays the processor type. Maximum Clock Speed Displays the maximum processor clock speed. Minimum Clock Speed Displays the minimum processor clock speed. Current Clock Speed Displays the current processor clock speed. Core Count Displays the number of cores on the processor. Processor ID Displays the processor identification code. Processor L2 Cache Displays the processor L2 Cache size.
Table 4. System setup options—Boot Configuration menu (continued) Boot Configuration Boot Sequence Displays the boot sequence. Secure Digital (SD) Card Boot Enable or disable the SD card read-only boot. By default, the Secure Digital (SD) Card Boot option is not enabled. Secure Boot Enable Secure Boot Enable or disable the secure boot feature. By default, the option is not enabled. Secure Boot Mode Enable or disable to change the secure boot mode options. By default, the Deployed Mode is enabled.
Table 6. System setup options—Storage menu (continued) Storage By default, the AHCIoption is enabled. Storage Interface Port Enablement Enable or disable the onboard drives. By default, all the options are enabled. SMART Reporting Enable SMART Reporting Enable or disable Self-Monitoring, Analysis, and Reporting Technology (SMART) during computer startup. By default, the Enable SMART Reporting option is not enabled. Drive Information SATA-0 Type Displays the SATA HDD type information of the computer.
Table 7. System setup options—Display menu (continued) Display Video Primary Display Determines the primary display when multiple controllers are available on the computer By default, the Auto option is enabled. Full Screen Logo Enable or disable full screen logo. By default, the option is not enabled. Table 8. System setup options—Connection menu Connection Network Controller Configuration Integrated NIC Controls the on-board LAN controller. By default, the Enabled with PXE option is enabled.
Table 9. System setup options—Power menu (continued) Power Block Sleep Enables to block entering sleep (S3) mode in the operating system. By default, the Block Sleep option is disabled. Deep Sleep Control Enable or disable the Deep Sleep mode support. By default, the Disabled option is enabled. Fan Control Override Enable or disable the fan control override feature. By default, the option is disabled. Intel Speed Shift Technology Enable or disable the Intel speed shift technology support.
Table 10. System setup options—Security menu (continued) Security By default, the Always Except Internal HDD option is enabled. Table 11. System setup options—Passwords menu Passwords Admin Password Set, change, or delete the administrator password. System Password Set, change, or delete the computer password. Internal HDD-0 Password Set, change, or delete the Internal HDD-0 password. NVMe SSD0 Set, change, or delete the NVMe SSD0 password.
Table 12. System setup options—Update, Recovery menu (continued) Update, Recovery By default, the option is enabled. BIOS Recovery from Hard Drive Enables the user to recover from certain corrupted BIOS conditions from a recovery file on the user primary hard drive or an external USB key. By default, the option is enabled. BIOS Downgrade Allow BIOS Downgrade Enable or disable the flashing of the computer firmware to previous revision is blocked. By default, the option is enabled.
Table 13. System setup options—System Management menu (continued) System Management Dell Development Configuration Enable Flash Updated Signature Override Enable or disable certain features to control BIOS By default, the option is disabled. Table 14. System setup options—Keyboard menu Keyboard Keyboard Errors Enable Keyboard Error Detection Enable or disable the keyboard error detection. By default, the option is enabled. Numlock LED Enable Numlock LED Enable or disable Numlock LED.
Table 17. System setup options—Performance menu Performance Multi Core Support Active Cores Enables to change the number of CPU cores available to the operating system. By default, the All Cores options are enabled. Intel SpeedStep Enable Intel SpeedStep Technology Enables the computer to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production. By default, the option is enabled.
Updating the BIOS in Windows Prerequisites It is recommended to update your BIOS (System Setup) when you replace the system board or if an update is available. For laptops, ensure that your computer battery is fully charged and connected to a power before initiating a BIOS update. About this task NOTE: If BitLocker is enabled, it must be suspended prior to updating the system BIOS, and then re enabled after the BIOS update is completed. Steps 1. Restart the computer. 2. Go to Dell.com/support.
3. Insert the USB flash drive into the computer that requires the BIOS update. 4. Restart the computer and press F12 when the Dell logo appears to display the One Time Boot Menu. 5. Using arrow keys, select USB Storage Device and press Enter. 6. The computer restarts to a Diag C:\> prompt. 7. Run the file by typing the complete filename and press Enter. 8. The BIOS Update Utility is displayed. Follow the on-screen instructions. Figure 1. DOS BIOS Update Screen System and setup password Table 19.
Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field. Use the following guidelines to assign the system password: ● A password can have up to 32 characters. ● The password can contain the numbers 0 through 9. ● Only lower case letters are valid, upper case letters are not allowed.
5 Troubleshooting Topics: • • • • • Dell SupportAssist Pre-boot System Performance Check diagnostics Diagnostic LED behavior Diagnostic error messages System error messages WiFi power cycle Dell SupportAssist Pre-boot System Performance Check diagnostics About this task SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded with the BIOS and is launched by the BIOS internally.
Diagnostic LED behavior Table 20. Diagnostic LED behavior Blinking pattern Amber White Problem description 1 2 Unrecoverable SPI Flash Failure 2 1 CPU failure Suggested resolution ● ● 2 2 2 3 System board failure (included ● BIOS corruption or ROM ● error) No memory/RAM detected ● ● Flash latest BIOS version If problem persists, replace the system board. Confirm that the memory module is installed properly. If problem persists, replace the memory module.
Table 20. Diagnostic LED behavior (continued) Blinking pattern Amber White 3 7 Problem description Intel ME (Management Engine) Error Suggested resolution ● If problem persists, replace the system board. ● Timeout waiting on ME to reply to HECI message If problem persists, replace the system board. ● 4 2 CPU Power Cable Connection Issue Diagnostic error messages Table 21.
Table 21. Diagnostic error messages (continued) Error messages Description For example, Printer out of paper. Take the appropriate action. HARD-DISK DRIVE CONFIGURATION ERROR The computer cannot identify the drive type. Shut down the computer, remove the hard drive, and boot the computer from an optical drive. Then, shut down the computer, reinstall the hard drive, and restart the computer. Run the Hard Disk Drive tests in Dell Diagnostics.
Table 21. Diagnostic error messages (continued) Error messages Description MEMORY DOUBLE WORD LOGIC FAILURE AT ADDRESS, READ VALUE EXPECTING VALUE A memory module may be faulty or improperly seated. Reinstall the memory module or, if necessary, replace it. MEMORY ODD/EVEN LOGIC FAILURE AT ADDRESS, READ VALUE EXPECTING VALUE A memory module may be faulty or improperly seated. Reinstall the memory module or, if necessary, replace it.
System error messages Table 22. System error messages System message Description Alert! Previous attempts at booting this system have failed at checkpoint [nnnn]. For help in resolving this problem, please note this checkpoint and contact Dell Technical Support The computer failed to complete the boot routine three consecutive times for the same error. CMOS checksum error RTC is reset, BIOS Setup default has been loaded. CPU fan failure CPU fan has failed. System fan failure System fan has failed.
6 Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 23. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system www.dell.com/support/windows www.dell.
