Precision 5470 Service Manual Regulatory Model: P154G Regulatory Type: P154G001, P154G002 April 2022 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. © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Working inside your computer...................................................................................... 6 Safety instructions.............................................................................................................................................................. 6 Before working inside your computer....................................................................................................................... 6 Safety precautions....................
Removing the smart-card reader............................................................................................................................ 38 Installing the smart-card reader...............................................................................................................................39 Display assembly.................................................................................................................................................................
Backup media and recovery options.............................................................................................................................86 WiFi power cycle............................................................................................................................................................... 86 Drain residual flea power (perform hard reset).........................................................................................................
1 Working inside your computer Safety instructions 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 you have read the safety information that shipped with your computer. WARNING: Before working inside your computer, read the safety information that is shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.
5. Remove any media card and optical disc from your computer, if applicable. 6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board. CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display. 7. Place the computer face down. Safety precautions The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
● Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage. ● Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.
Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. After working inside your computer About this task NOTE: Leaving stray or loose screws inside your computer may severely damage your computer. Steps 1. Replace all screws and ensure that no stray screws remain inside your computer. 2.
2 Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● ● ● ● Phillips screwdriver #0 Phillips screwdriver #1 Torx #5 (T5) screwdriver Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box.
Table 1. Screw list (continued) Component Screw type Quantity Heat-sink for integrated graphics Captive screw 4 Heat-sink for discrete graphics Captive screw 5 Audio jack M2x4 3 M1.6x3 1 Speakers M1.6x1.8 2 Smart-card reader M1.6x1.7 2 Display assembly M2.5x5 6 T5, M1.4x4 4 M2x4 6 T5, M1.4x4 4 M1.6x2.3 1 Power button board with fingerprint reader M1.6x2 3 USH board M1.4x1.2 2 WLAN antennas M1.4x2.
1. 3. 5. 7. 12 Base cover Right fan System board Palm-rest Removing and installing components 2. 4. 6. 8.
9. Display assembly 11. Memory module 13. Left fan 10. Touchpad flat printed cable 12. Solid-state drive shield 14. Heat-sink discrete NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options. Base cover Removing the base cover Prerequisites 1. Follow the procedure in before working inside your computer.
Steps 1. Remove the eight (T5, M2x3) torx screws that secure the base cover to the computer.
2. Use a scribe to pry from the gap at the bottom-left corner of the base cover. Then slide the scribe towards the middle of bottom side, and then the left side of the system to disengage the clips. Repeat the same process for the other side of the system. NOTE: Do NOT pry up from the top side (near the vents) of the base cover as it can damage the rear side of the cover. CAUTION: Only use the plastic scribe to disengage and release the clips with the prying motion along the edges of the base cover.
Steps 1. Connect the battery cable to the connector on the system board. 2. Slide the base cover into its slot until it clicks into place and replace the eight (T5, M2x3) torx screws to secure the base cover to the computer. Next steps 1. Follow the procedure in after working inside your computer. M.2 solid-state drive Removing the M.2 2230 solid state drive Prerequisites NOTE: For computers shipped with M.2 2230 solid state drive. 1. Follow the procedure in Before working inside your computer. 2.
About this task The figure indicates the location of the M.2 2230 solid state drive and provides a visual representation of the removal procedure. Steps 1. Remove the (M2x2) screw that secures the SSD thermal plate to the M.2 2230 solid state drive bracket. 2. Lift to remove the SSD thermal plate. 3. Lift the M.2 2230 solid state drive bracket at an angle and slide to remove from its slot on the system board. 4. Remove the (M2x2) screw that secures the M.2 2230 solid state drive to the M.
Steps 1. Align and place the M.2 2230 solid state drive on the M.2 2230 solid state drive bracket. NOTE: Install the M.2 2230 solid state drive to the SSD bracket so that the top side (with the sticker) of the M.2 2230 solid state drive is facing up. 2. Replace the (M2x2) screw that secures the M.2 2230 solid state drive to the M.2 2230 solid state drive bracket. 3. Carefully align and insert the M.2 2230 solid state drive bracket to its slot on the system board.
4. Replace the (M2x2) screw that secures the SSD thermal plate to the M.2 2230 solid state drive bracket. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Removing the M.2 2280 solid state drive Prerequisites NOTE: For computers shipped with M.2 2280 solid state drive. 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The figure indicates the location of the M.
Steps 1. Remove the (M2x2) screw that secures the SSD thermal plate to the M.2 2280 solid state drive. 2. Lift to remove the SSD thermal plate. 3. Lift the M.2 2280 solid state drive at an angle and slide to remove from its slot on the system board. Installing the M.2 2280 solid state drive Prerequisites NOTE: For computers shipped with M.2 2280 solid state drive. If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Carefully align and insert the M.2 2280 solid state drive to its slot on the system board. 2. Replace the (M2x2) screw that secures the SSD thermal plate to the M.2 2280 solid state drive. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Battery Lithium-ion battery precautions CAUTION: ● Exercise caution when handling Lithium-ion batteries. ● Discharge the battery completely before removing it.
● Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to handle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries. Removing the battery Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The figure indicates the location of the battery and provides a visual representation of the removal procedure.
Steps 1. Unroute the WLAN antennas from the routing guides on the battery. 2. Remove the five (M2x4) screws that secure the battery to the palm-rest and keyboard assembly. 3. Slightly lift the battery at an angle and slide to remove from the palm-rest and keyboard assembly. Installing the battery Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components
Steps 1. Place the battery onto its slot in the palm-rest and keyboard assembly. 2. Replace the five (M2x4) screws that secure the battery to the palm-rest and keyboard assembly. 3. Route the WLAN antennas using the routing guides on the battery. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Left fan Removing the left fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover.
Disconnect the left fan cable from the system board. 2. Remove the two (M2x4) screws that secure the left fan to the palm-rest and keyboard assembly. 3. Lift the left fan to remove it from the palm-rest and keyboard assembly. After the fan cable is disconnected and the screws that are removed, lift the fan from its outer edge and slide it away from the system. NOTE: The image above shows the process for the left fan. The same process applies to the right fan.
About this task The following images indicate the location of the left fan and provide a visual representation of the installation procedure. Steps 1. Align the screw holes on left fan with the screw holes on the palm-rest and keyboard assembly. 2. Connect the left fan cable to the system board. 3. Replace the two (M2x4) screws that secure the left fan to the palm-rest and keyboard assembly. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer.
Steps 1. NOTE: Before disconnecting the fan cables from the system board, carefully peel off the (1) tweeter speaker from its compartment next to the (2) connector to create more space for the disconnection. Disconnect the right fan cable from the system board. 2. Remove the two (M2x4) screws that secure the right fan to the palm-rest and keyboard assembly. 3. Lift the right fan to remove it from the palm-rest and keyboard assembly.
NOTE: The image above shows the process for the left fan. The same process applies to the right fan. Installing the right fan Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the right fan and provide a visual representation of the installation procedure.
Steps 1. Align the screw holes on right fan with the screw holes on the palm-rest and keyboard assembly. 2. Connect the right fan cable to the system board. 3. Replace the two (M2x4) screws that secure the right fan to the palm-rest and keyboard assembly. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Heat sink Removing the heat-sink for Integrated graphics Prerequisites 1. Follow the procedure in Before working inside your computer. 2.
Installing the heat-sink for integrated graphics Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the heat-sink and provides a visual representation of the installation procedure. Steps 1. Align and insert the heat-sink into its slot on the system board. 2. Tighten the four captive screws that secure the heat-sink to the system board.
Steps 1. Loosen the five captive screws that secure the heat-sink to the system board. NOTE: Loosen the captive screws in the order that is marked on the heat-sink assembly next to the screws [5 > 4 > 3 > 2 > 1]. 2. Carefully lift the heat-sink to remove it from the system board. Installing the heat-sink for discrete graphics Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align and insert the heat-sink into its slot on the system board. 2. Tighten the five captive screws that secure the heat-sink to the system board. NOTE: Loosen the captive screws in the order that is marked on the heat-sink next to the screws [1 > 2 > 3 > 4 > 5]. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Audio jack Removing the audio jack Prerequisites 1. Follow the procedure in Before working inside your computer. 2.
Steps 1. Remove the three (M2x4) screws that secure the left USB Type-C bracket to the system board. 2. Lift to remove the left USB Type-C bracket from the system board. 3. Disconnect the audio jack FPC from its connector on the system board. 4. Remove the (M1.6x3) screw that secures the audio jack. 5. Lift to remove the audio jack from the palm-rest and keyboard assembly.
Steps 1. Align and place the audio jack in its slot on the palm-rest and keyboard assembly. 2. Connect the audio jack FPC to its connector on the system board. 3. Replace the (M1.6x3) screw to secure the audio jack to the system board. 4. Align and place the left USB Type-C bracket on the system board. 5. Replace the three (M2x4) screws that secure the left USB Type-C bracket to the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer.
Speakers Removing the speaker Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. About this task The figure indicates the location of the speaker and provides a visual representation of the removal procedure. Steps 1. Disconnect the left and right speaker cables from the system board. 2. Peel the left and right tweeter speakers from their compartments on the palm-rest and keyboard assembly. 3.
4. Remove the two (M1.6x1.8) screws that secure the left and right speakers to the palm-rest and keyboard assembly. 5. Lift to remove the left and right speakers from the palm-rest and keyboard assembly. Installing the speaker Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the speakers and provides a visual representation of the installation procedure. Steps 1.
3. Replace the two (M1.6x1.8) screws that secure the left and right speakers to the palm-rest and keyboard assembly. 4. Connect the left and right speaker cables to the system board. Next steps 1. Install the battery. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. Smart-card reader Removing the smart-card reader Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the speakers.
Steps 1. Disconnect the smart-card reader FFC from the connector on the USH board. 2. Peel the smart-card reader FFC from the palmrest and keyboard assembly. 3. Remove the two (M1.6x1.7) screws that secure the smart-card reader to the computer. 4. Peel the adhesive and remove the smart-card reader from the computer. Installing the smart-card reader Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align and place the smart-card reader into its slot on the computer. 2. Adhere the adhesive and replace the two (M1.6x1.7) screws to secure the smart-card reader in place. 3. Adhere the smart-card reader FFC to the palmrest and keyboard assembly. 4. Connect the smart-card reader FFC to the connector on the USH board. Next steps 1. 2. 3. 4. 40 Install the speakers. Install the battery. Install the base cover. Follow the procedure in after working inside your computer.
Display assembly Removing the display assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The figure indicates the location of the display assembly and provides a visual representation of the removal procedure.
Steps 1. Remove the two (T5, M1.4x4) Torx screws that secure the display FPC holder to the system board. 2. Remove the two (T5, M1.4x4) Torx screws that secure the display FPC to the system board. 3. Disconnect the display FPC from the system board and remove the interposer board. CAUTION: Technicians must remove the interposer board immediately after disconnecting the display FPC to prevent the board from falling out of the system during subsequent removal procedures.
5. Slide the bottom assembly slightly to the left and then away from the display assembly to remove the display assembly from the system. NOTE: The display assembly is a Hinge-Up Design (HUD) assembly and cannot be further disassembled once it is removed from the bottom chassis. If any components in the display assembly are malfunctioning and need to be replaced, replace the entire display assembly.
Removing and installing components
Steps 1. Align the screw holes on the hinges on the display assembly to the screw holes on the palm-rest and keyboard assembly. 2. Replace the six (M2.5x5) screws to secure the display assembly to the palm-rest and keyboard assembly. 3. Use a plastic scribe to tuck the display FPC into the gap between the system board and the bottom assembly until the white line on the display connector lines up with the edge of the system board.
4. Place the interposer board and connect the display FPC to the system board. 5. Replace the two (T5, M1.4x4) Torx screws that secure the display FPC to the system board. 6. Replace the two (T5, M1.4x4) Torx screws that secure the display FPC holder to the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer.
System board Removing the system board Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. Follow the procedure in before working inside your computer. Remove the base cover. Remove the M.2 2230 solid state drive or M.2 2280 solid state drive. Remove the battery. Remove the left fan. Remove the right fan. Remove the audio jack. Remove the heat-sink for integrated graphics or heat-sink for discrete graphics.
1. 2. 3. 4. 5. 6. 7. 8. 9. 48 Power button with fingerprint reader FPC connector Audio jack FPC connector Left fan cable connector Left tweeter speaker cable connector Integrated WLAN card Battery LED FPC connector Battery cable connector M.
Removing and installing components 49
Steps 1. Remove the four (T5, M1.4x4) Torx screws that secure the display FPC holder and display FPC to the system board. 2. Disconnect the display FPC from the system board and remove the interposer board. CAUTION: Technicians must remove the interposer board immediately after disconnecting the display FPC to prevent the board from falling out of the system during subsequent removal procedures. The pins on the interposer board are fragile. Avoid contact with the pins on the board.
7. Disconnect the power button board with fingerprint reader FPC from the system board. 8. Peel the left and right tweeter speakers from their compartments on the palm-rest and keyboard assembly. 9. Disconnect the left and right speaker cables from the system board. 10. Remove the three (M2x4) screws that secure the right USB Type-C bracket on the system board. 11. Remove the three (M2x4) screws that secure the system board to the palm-rest and keyboard assembly. 12.
Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the system board and provides a visual representation of the installation procedure.
Removing and installing components 53
CAUTION: The USH board FPC and touchpad FPC are connected to the bottom side of the system board and must be transferred to the new replacement system board. Steps 1. Align the screw holes on the system board with the holes on the palm-rest and keyboard assembly. 2. Replace the three (M2x4) screws to secure the system board to the palm-rest and keyboard assembly. 3. Replace the three (M2x4) screws to secure the right USB Type-C bracket on the system board. 4.
5. Connect the power button board with fingerprint reader FPC to the system board. 6. Connect the USH board FPC (for models shipped with a USH board) and touchpad FPC to their respective connectors. 7. Connect the battery LED FPC to the system board. 8. Route the WLAN antenna cables using the metal clips on the system board and connect them to the WLAN module. 9. Tighten the single (M1.6x2.3) captive screw to secure the WLAN bracket on the system board. 10.
11. Place the interposer board and connect the display FPC to the system board. 12. Replace the four (T5, M1.4x4) Torx screws that secure the display FPC holder and display FPC to the system board. Next steps 1. 2. 3. 4. 5. 6. 7. 8. Install the heat-sink for integrated graphics or heat-sink for discrete graphics. Install the audio jack. Install the right fan. Install the left fan. Install the battery. Install the M.2 2230 solid state drive or M.2 2280 solid state drive. Install the base cover.
Steps 1. Remove the three (M1.6x2) screws that secure the fingerprint reader bracket to the power button board. 2. Remove the fingerprint reader from the power button board. 3. Remove the power button board with power button FPC from the palm-rest and keyboard assembly. Installing the power button board assembly with fingerprint reader Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align and place the power button board with power button FPC into its slot on the palm-rest and keyboard assembly. 2. Align and place the fingerprint reader on the power button board. 3. Replace the three (M1.6x2) screws to secure the fingerprint reader bracket to the power button board. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. Install the system board. Install the display assembly. Install the audio jack. Install the right fan. Install the left fan. Install the battery. Install the M.
8. Remove the system board. NOTE: The system board can be removed or installed together with the heat-sink attached. This simplifies the procedure and avoids breaking the thermal bond between the system board and the heat-sink. About this task The figure indicates the location of the USH board and provides a visual representation of the removal procedure. Steps 1. Remove the two (M1.4x1.2) screws that secure the USH board flat printed cable on the system board. 2.
Steps 1. Align and place the USH board flat printed cable on the system board. 2. Replace the two (M1.4x1.2) screws that secure the USH board flat printed cable to the system board. Next steps 1. 2. 3. 4. 5. 6. 7. 8. Install the system board. Install the audio jack. Install the right fan. Install the left fan. Install the battery. Install the M.2 2230 solid state drive or M.2 2280 solid state drive. Install the base cover. Follow the procedure in after working inside your computer.
About this task The figure indicates the location of the WLAN antennas and provides a visual representation of the removal procedure. Steps 1. Remove the two (M1.4x2.5) captive screws that secure the auxiliary antenna on the palm-rest and keyboard assembly. 2. Remove the two (M1.4x2.5) captive screws that secure the main antenna on the palm-rest and keyboard assembly. 3. Peel the adhesives securing the auxiliary and main antennas to the palm-rest and keyboard assembly. 4.
Steps 1. Align and place the auxiliary and main antennas into its slot on the palm-rest and keyboard assembly. 2. Reroute the auxiliary and main antennas using the routing guides on the palm-rest and keyboard assembly. 3. Adhere the tapes securing the auxiliary and main antennas to the palm-rest and keyboard assembly. 4. Replace the two (M1.4x2.5) captive screws that secure the main antenna on the palm-rest and keyboard assembly. 5. Replace the two (M1.4x2.
Palm-rest and keyboard assembly Removing the palm-rest and keyboard assembly Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Follow the procedure in before working inside your computer. Remove the base cover. Remove the M.2 2230 solid state drive or M.2 2280 solid state drive. Remove the battery. Remove the left fan. Remove the right fan. Remove the audio jack. Remove the speakers. Remove the display assembly. Remove the system board.
About this task The figure indicates the palm-rest and keyboard assembly and before performing the pre-installation parts procedures for any palm-rest and keyboard assembly installation procedure. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 64 Install the WLAN antennas. Install the power button board with finger print reader. Install the system board. Install the display assembly. Install the speakers. Install the audio jack. Install the right fan. Install the left fan. Install the battery.
3 Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ 000123347.
4 BIOS setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.
One time boot menu To enter one time boot menu, turn on your computer, and then press F2 immediately. NOTE: It is recommended to shutdown the computer if it is on. The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are: ● Removable Drive (if available) ● STXXXX Drive (if available) NOTE: XXX denotes the SATA drive number.
Table 3. BIOS setup options—System information menu (continued) General-System Information Processor L2 Cache Displays the processor L2 Cache size. Processor L3 Cache Displays the processor L3 Cache size. Microcode Version Displays the microcode version. Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable. 64-Bit Technology Displays whether 64-bit technology is used. Memory Information Memory Installed Displays the total system memory installed.
Table 4. System setup options—Boot Configuration menu (continued) Boot Configuration By default, the Deployed Mode is enabled. Expert Key Management Enable Custom Mode Enable or disable custom mode. By default, the custom mode option is not enabled. Custom Mode Key Management Select the custom values for expert key management. Table 5. System setup options—Integrated Devices menu Integrated Devices Date/Time Displays the current date in MM/DD/YYYY format and current time in HH:MM:SS AM/PM format.
Table 5. System setup options—Integrated Devices menu (continued) Integrated Devices Type-C Dock Override Enable to use connected Type-C Dell Dock to provide data stream with external USB ports disabled. When Type-C Dock Override is enabled, the Video/Audio/Lan submenu is activated. By default, the Type-C Dock Override option is enabled. Type-C Dock Audio Enable or disable the usage of audio on Dell Dock external ports. By default, the Audio option is enabled.
Table 7. System setup options—Display menu (continued) Display Touchscreen Touchscreen Enable or disable the touchscreen for the OS. By default, the option is enabled. Full Screen Logo Enable or disable full screen logo. By default, the option is disabled. Table 8. System setup options—Connection menu Connection Wireless Device Enable WLAN Enable or disable the internal WLAN device. By default, the option enabled.
Table 9. System setup options—Power menu (continued) Power Peak Shift Enables the system to run on battery during peak power usage hours. Enable Peak Shift By default, the Enable Peak Shift option is disabled. Thermal Management Enables to cool the fan and processor heat management to adjust the system performance, noise, and temperature. By default, the Optimized option is enabled.
Table 10. System setup options—Security menu (continued) Security Total Memory Encryption Enable or disable you to protect memory from physical attacks including freeze spray, probing DDR to read the cycles, and others. By default, the Total Memory Encryption option is disabled. Chassis intrusion Controls the chassis intrusion feature. By default, the option is disabled. SMM Security Mitigation Enable or disable additional UEFI SMM Security Mitigation protections. By default, the option is enabled.
Table 11. System setup options—Passwords menu (continued) Passwords By default, the option is disabled. Special Character Reinforces password must have at least one special character. By default, the option is disabled. Minimum Characters Set the minimum characters allowed for password. Password Bypass When enabled, this always prompts for system and internal hard drive passwords when powered on from the Off state. By default, the Disabled option is selected.
Table 12. System setup options—Update, Recovery menu (continued) Update, Recovery BIOSConnect Enable or disable cloud Service operating system recovery if the main operating system fails to boot with the number of failures equal to or greater than the value specified by the Auto operating system Recovery Threshold setup option and local Service operating system does not boot or is not installed. By default, the option is enabled.
Table 14. System setup options—Keyboard menu (continued) Keyboard By default, the 10 seconds option is enabled. Keyboard Backlight Timeout on Battery Set the timeout value for the keyboard backlight when the is running only on battery power. By default, the 10 seconds option is enabled. Device Configuration Hotkey Access Manages whether you can access device configuration screens through hotkeys during system startup. By default, the option is enabled. Table 15.
Table 16. System setup options—Virtualization menu (continued) Virtualization ● ● ● ● ● Trusted Platform Module (TPM) Intel Hyper-Threading All CPU cores (Multi-Core Support) Intel Virtualization Technology Intel VT for Direct I/O By default, the option is disabled. DMA Protection Enable Pre-Boot DMA Support This setting controls Pre-boot DMA protection for both internal and external ports. By default, the option is enabled.
Table 17. System setup options—Performance menu (continued) Performance Enable Dynamic Tuning: Machine Learning Enables the operating system capability to enhance dynamic power tuning capabilities based on detected workloads. By default, the option is disabled. PCIe Resizeable Base Address Register (BAR) Platform considers to Enable this option, if there is no compatibility issue with supported graphics card. By default, the option is disabled. Table 18.
5. In the Category drop-down list, select BIOS. 6. Select the latest version of BIOS, and click Download to download the BIOS file for your computer. 7. After the download is complete, browse the folder where you saved the BIOS update file. 8. Double-click the BIOS update file icon and follow the on-screen instructions. For more information, see knowledge base article 000124211 at www.dell.com/support.
Updating from the One-Time boot menu To update your BIOS from the F12 One-Time boot menu, you need the following: ● ● ● ● USB drive formatted to the FAT32 file system (key does not have to be bootable) BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive AC power adapter that is connected to the computer Functional computer battery to flash the BIOS Perform the following steps to perform the BIOS update flash process from the F12 menu: CAUTION: Do
● ● ● ● ● A password can have up to 32 characters. At least one special character: ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } Numbers 0 through 9. Upper case letters from A to Z. Lower case letters from a to z. 3. Type the system password that you entered earlier in the Confirm new password field and click OK. 4. Press Esc and save the changes as prompted by the pop-up message. 5. Press Y to save the changes. The computer restarts.
5 Troubleshooting Handling swollen Lithium-ion batteries Like most laptops, Dell laptops use lithium-ion batteries. One type of lithium-ion battery is the lithium-ion polymer battery. Lithium-ion polymer batteries have increased in popularity in recent years and have become standard in the electronics industry due to customer preferences for a slim form factor (especially with newer ultra-thin laptops) and long battery life.
● Run thorough tests to introduce additional test options to provide extra information about the failed device(s) ● View status messages that inform you if tests are completed successfully ● View error messages that inform you of problems encountered during testing NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed. For more information, see https://www.dell.com/support/kbdoc/000180971.
LCD Power rail test (L-BIST) L-BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST. L-BIST will check the LCD power rail. If there is no power being supplied to the LCD (i.e., the L-BIST circuit fails), the battery status LED will flash either an error code [2,8] or an error code [2,7]. NOTE: If L-BIST fails, LCD-BIST cannot function as no power will be supplied to the LCD. How to invoke L-BIST Test: 1. Press the power button to start the system. 2.
Table 22. System-diagnostic lights (continued) Blinking pattern Amber White Problem description Suggested resolution 1 6 Generic catch-all for ungraceful EC code flow errors Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button for 3~5 seconds.
Table 22. System-diagnostic lights (continued) Blinking pattern Amber White Problem description Suggested resolution ● ● ● 3 7 Timeout waiting on ME to reply to HECI message. RTC reset. If problem persists, replace the system board. Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button 3~5 seconds to ensure all power are drained. Run "BIOS recovery from USB", and the instructions are in the website Dell support.
Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. Drain residual flea power (perform hard reset) About this task Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is removed.
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 app Tips Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system www.dell.
