Inspiron 7400 Service Manual Regulatory Model: P130G Regulatory Type: P130G003 September 2020 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 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 Before working inside your computer.............................................................................................................................6 Safety instructions..............................................................................................................................................................
Removing the coin-cell battery................................................................................................................................42 Installing the coin-cell battery.................................................................................................................................. 43 Antenna module.................................................................................................................................................................
Flea power release............................................................................................................................................................ 80 Chapter 6: Getting help and contacting Dell.................................................................................
1 Working inside your computer Before working inside your computer About this task NOTE: The images in this document may differ from your computer depending on the configuration you ordered. 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.
CAUTION: When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable. When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting cables, ensure that the ports and the connectors are correctly oriented and aligned. CAUTION: Press and eject any installed card from the media-card reader.
● ● ● ● ● mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at least once per week.
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 ● 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.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. base cover power-adapter port heat sink M.2 2280 solid-state drive M.2 2230 solid-state drive M.2 2230 solid-state drive bracket system board right speaker touchpad display assembly palm-rest and keyboard assembly left speaker I/O board power-button with optional fingerprint reader coin-cell battery fan battery NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased.
Base cover Removing the base cover Prerequisites 1. Follow the procedure in Before working inside your computer. About this task NOTE: Before removing the base cover, ensure that there is no micro-SD card installed in the micro-SD card slot on your computer. The following images indicate the location of the base cover and provides a visual representation of the removal procedure.
Removing and installing components 13
Steps 1. Remove the four screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the three captive screws (M2x3.5+2.5) that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry the base cover from the middle and continue to work on the sides to open the base cover. 4. Lift and slide the base cover off the palm-rest and keyboard assembly. 5. Disconnect the battery cable from the system board. 6.
Removing and installing components 15
Steps 1. Connect the battery cable to the connector on the system board if disconnected. 2. Place and snap the base cover into place on the palm-rest and keyboard assembly. 3. Tighten the three captive screws (M2x3.5+2.5) that secure the base cover to the palm-rest and keyboard assembly. 4. Replace the four screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly. Next steps 1. Follow the procedure in After working inside your computer.
● Do not use tools of any kind to pry on or against the battery. ● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage to the battery and other system components. ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.
Installing the 4-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: The 4-cell battery can be identified by the 52 Wh printout on the left side of the battery. The following images indicate the location of the 4-cell battery and provides a visual representation of the installation procedure. Steps 1. Place the battery on the palm-rest and keyboard assembly. 2.
About this task NOTE: The 6-cell battery can be identified by the 78 Wh printout on the left side of the battery. The following images indicate the location of the 6-cell battery and provides a visual representation of the removal procedure. Steps 1. Remove the four screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 2. Remove the screw (M1.6x4.5) that secures the battery to the palm-rest and keyboard assembly. 3. Lift the battery off the palm-rest and keyboard assembly. 4.
Installing the 6-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: The 6-cell battery can be identified by the 78 Wh printout on the left side of the battery. The following images indicate the location of the 6-cell battery and provides a visual representation of the installation procedure. Steps 1. Connect the battery cable to the system board. 2.
CAUTION: Ensure that the battery cable is tucked between the battery and the system board when placing the battery on the palm-rest and keyboard assembly to avoiding pinching the cable and damaging your computer. 3. Place the battery on palm-rest and keyboard assembly. 4. Replace the four screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 5. Replace the screw (M1.6x4.5) that secures the battery to the palm-rest and keyboard assembly. Next steps 1. Install the base cover. 2.
Steps 1. Lift the Mylar that covers the system board. 2. Peel the thermal tape that covers the M.2230 solid-state drive and bracket. 3. Remove the screw (M2x2.5) that secures the M.2 2230 bracket to the system board. 4. Slide and lift the M.2 2230 bracket off the system board. 5. Slide and lift the M.2 2230 solid-state drive off the system board. Installing the M.
● M.2 2280 solid-state drive ● M.2 2280 Intel Optane H10 The following images indicate the location of the M.2 2230 solid-state drive and provides a visual representation of the installation procedure. Steps 1. Lift the Mylar off the system board. 2. Align the notch on the M.2 2230 solid-state drive with the tab on the M.2 card slot on the system board. 3. Slide the M.2 2230 solid-state drive into the M.2 card slot on the system board. 4. Place and slide the M.
Removing the M.2 2280 solid-state drive/Intel Optane H10 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task NOTE: This procedure applies only to computers shipped with a M.2 2280 solid-state drive/Intel Optane H10 installed. NOTE: The M.2 card installed on your computer will depend on the configuration ordered. Supported card configurations on the M.2 card slot: ● M.2 2230 solid-state drive + 2230 mounting bracket ● M.
Steps 1. Lift the Mylar that covers the system board. 2. Peel the thermal tape that covers the M.2 2280 solid-state drive. 3. Remove the screw (M2x2.5) that secures the M.2 2280 solid-state drive/Intel Optane H10 to the palm-rest and keyboard assembly. 4. Slide and remove the M.2 2280 solid-state drive/Intel Optane H10 from the M.2 card slot on the system board. Installing the M.
Steps 1. Lift the Mylar that covers the system board. 2. Align the notch on the M.2 2280 solid-state drive/Intel Optane H10 with the tab on the M.2 card slot on the system board. 3. Slide the M.2 2280 solid-state drive/Intel Optane H10 into the M.2 card slot on the system board. 4. Replace the screw (M2x2.5) that secures the M.2 2280 solid-state drive/Intel Optane H10 to the palm-rest and keyboard assembly. 5. Adhere the thermal tape that covers the M.2 2280 solid-state drive/Intel Optane H10. 6.
Heat sink Removing the heat sink Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task CAUTION: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. CAUTION: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease.
Steps 1. Lift the Mylar that covers the system board. NOTE: The number of screws varies depending on the configuration ordered. 2. In reverse sequential order (4>3>2>1) loosen the four captive screws that secure the heat sink to the system board. 3. Lift the heat sink from the system board. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Place the heat sink on the system board. 2. In sequential order (1>2>3>4) tighten the four captive screws that secure the heat sink to the system board. NOTE: The number of screws varies depending on the configuration ordered. 3. Place the Mylar over the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Fan Removing the fan (4-cell battery) Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the base cover. About this task The following images indicate the location of the fan (4-cell battery) and provides a visual representation of the removal procedure. Steps 1. Lift the Mylar that covers the system board. 2. Remove the two screws (M2x3) that secure the fan to the palm-rest and keyboard assembly. 3. Disconnect the fan cable from the system board. 4. Lift the fan from the palm-rest and keyboard assembly.
Steps 1. Lift the Mylar that covers the system board. 2. Place the fan on the palm-rest and keyboard assembly. 3. Align the screw holes on the fan to the screw holes on the palm-rest and keyboard assembly. 4. Replace the two screws (M2x3) that secure the fan to the palm-rest and keyboard assembly. 5. Connect the fan cable to the connector on the system board. 6. Place the Mylar over the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer.
Steps 1. Lift the Mylar that covers the system board. 2. Remove the two screws (M2x3) that secure the fan to the palm-rest and keyboard assembly. 3. Disconnect the fan cable from the system board. 4. Lift the fan from the palm-rest and keyboard assembly. Installing the fan (6-cell battery) Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Lift the Mylar that covers the system board. 2. Place the fan on the palm-rest and keyboard assembly. 3. Align the screw holes on the fan to the screw holes on the palm-rest and keyboard assembly. 4. Replace the two screws (M2x3) that secure the fan to the palm-rest and keyboard assembly. 5. Connect the fan cable to the connector on the system board. 6. Place the Mylar over the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer.
Steps 1. Open the latch and disconnect the touchpad cable from the system board. 2. Open the latch and disconnect the keyboard cable from the system board. 3. Open the latch and disconnect the keyboard-backlight cable from the system board. 4. Disconnect the speaker cable from the system board. 5. Lift the right speaker off the palm-rest and keyboard asssembly. 6. Peel the tapes that secure the speaker cable to the palm-rest and keyboard assembly.
Steps 1. Using the alignment posts, place the speakers on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2. Adhere the tapes that secure the cable to the palm-rest and keyboard assembly. 3. Connect the speaker cable to the connector on the system board. 4. Connect the keyboard cable to the connector on the system board and close the latch. 5.
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 following images indicate the location of the display assembly and provides a visual representation of the removal procedure.
Steps 1. Remove the two screws (M2x4) that secure the left-display hinge to the palm-rest and keyboard assembly. 2. Pry open the left-display hinge. 3. Lift the Mylar off the system board. 4. Peel the tape that secures the display-cable latch to the system board. 5. Lift the latch and disconnect the display cable from the system board. 6. Remove the two screws (M2x4) that secure the right-display hinge to the palm-rest and keyboard assembly. 7. Pry open the right-display hinge. 8.
Removing and installing components
Steps 1. Place the display assembly on a clean and flat surface with the display panel facing up. 2. Place the palm-rest and keyboard assembly under the display hinges. CAUTION: To avoid damaging the display, do not slide the palm-rest and keyboard assembly over the display assembly. 3. Lift the Mylar from the system board. 4. Close the right-display hinge and align the screw holes on the right-display hinge with the screw holes on the palm-rest and keyboard assembly 5.
Power-adapter port Removing the power-adapter port Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following images indicate the location of the power-adapter port and provides a visual representation of the removal procedure. Steps 1. Lift the Mylar that covers the system board. 2. Remove the two screws (M2x4) that secure the right-display hinge to the palm-rest and keyboard assembly. 3. Pry open the right-display hinge. 4.
5. Remove the screw (M2x3) that secures the power-adapter to the palm-rest and keyboard assembly. 6. Lift the power-adapter port from its slot on the palm-rest and keyboard assembly. Installing the power-adapter port Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the power-adapter port and provides a visual representation of the installation procedure. Steps 1.
6. Close the right-display hinge and align the screw holes on the right-display hinge with the screw holes on the palm-rest and keyboard assembly. 7. Replace the two screws (M2x4) that secure the right-display hinge to the palm-rest and keyboard assembly. 8. Place the Mylar that covers the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Coin-cell battery Removing the coin-cell battery Prerequisites 1.
Installing the coin-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the coin-cell battery and provides a visual representation of the installation procedure. Steps 1. Adhere the coin-cell battery to the palm-rest and keyboard assembly. 2. Route the coin-cell battery cable through the routing guide on the fan. 3.
About this task NOTE: The antenna module can only be removed from the location shown on computers shipped with 6-cell battery configurations. The following images indicate the location of the antenna module and provides a visual representation of the removal procedure. Steps 1. Lift the Mylar that covers the system board. 2. Peel the tape that secures the antenna cables to the palm-rest and keyboard assembly. 3. Remove the antenna cables from the routing guides on the palm-rest and keyboard assembly. 4.
8. Peel the tape that secures the antenna cables to the palm-rest and keyboard assembly. 9. Remove the antenna cables from the routing guides on the palm-rest and keyboard assembly. 10. Remove the screw (M2x2.5) that secures the antenna module to the palm-rest and keyboard assembly. 11. Lift the antenna module and its cables off the palm-rest and keyboard assembly.
Steps 1. Place the antenna module on the palm-rest and keyboard assembly. 2. Replace the screw (M2x2.5) that secures the antenna module to the palm-rest and keyboard assembly. 3. Route the antenna cables through the routing guides on the palm-rest and keyboard assembly. 4. Adhere the tape that secures the antenna cables to the palm-rest and keyboard assembly. 5. Connect the antenna cables to the wireless card on the system board.
Table 2. Antenna-cable color scheme (continued) Connectors on the wireless card Antenna-cable color Auxiliary (black triangle) Black 6. Place the wireless-card bracket on the wireless card. 7. Replace the screw (M2x2.5) that secures the wireless-card bracket to the system board. 8. Connect the coin-cell battery cable to the system board. 9. Connect the I/O-board cable to the connector on the system board and close the latch. 10.
Steps 1. Open the latch and disconnect the the touchpad cable from the system board. 2. Remove the three screws (M2x2) that secure the touchpad bracket to the palm-rest and keyboard assembly. 3. Lift the touchpad bracket off the touchpad. 4. Remove the two screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly. 5. Peel the tapes that secure the touchpad to the palm-rest and keyboard assembly. 6. Lift the touchpad off the palm-rest and keyboard assembly.
Next steps 1. 2. 3. 4. Install the antenna module, only for computers with a 6-cell (78 Wh) battery. Install the 4-cell battery or the 6-cell battery, whichever applicable. Install the base cover. Follow the procedure in After working inside your computer. I/O board Removing the I/O board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover.
Installing the IO board Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the I/O board and provides a visual representation of the installation procedure. Steps 1. Slide and place the I/O board on the palm-rest and keyboard assembly. NOTE: Ensure that the USB port on the I/O board is aligned to the USB port slot on the palm-rest and keyboard assembly. 2.
Power button Removing the power-button with optional fingerprint reader Prerequisites 1. 2. 3. 4. 5. Follow the procedure in Before working inside your computer. Remove the base cover. Remove the 4-cell battery or the 6-cell battery, whichever applicable. Remove the fan (4-cell battery) or the fan (6-cell battery), whichever applicable. Remove the I/O board.
About this task The following images indicate the location of the power-button with optional fingerprint reader and provides a visual representation of the installation procedure. Steps 1. Using the alignment posts, place the power-button with optional fingerprint reader into its slot on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x3) that secure the power-button with optional fingerprint reader to the palm-rest and keyboard assembly. 3.
3. Remove the 4-cell battery or the 6-cell battery, whichever applicable. 4. Remove the fan (4-cell battery) or the fan (6-cell battery), whichever applicable. 5. Remove the I/O board. About this task The following images indicate the location of the fingerprint-reader board and provides a visual representation of the removal procedure. Steps 1. Open the latch and disconnect the power-button cable from the fingerprint-reader board. 2.
Steps 1. Place and slide the fingerprint-reader board under the securing clip on the palm-rest and keyboard assembly. 2. Connect the fingerprint-reader board cable to the fingerprint-reader board and close the latch. 3. Connect the power-button cable to the fingerprint-reader board and close the latch. Next steps 1. 2. 3. 4. 5. Install the IO board. Install the fan (4-cell battery) or the fan (6-cell battery), whichever applicable. Install the 4-cell battery or the 6-cell battery, whichever applicable.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Display cable Power-adapter port cable Speaker cable Keyboard cable Keyboard-backlight cable Touchpad cable I/O-board cable Fingerprint-reader cable Coin-cell battery cable Wireless-card bracket and antenna cables The following images indicate the location of the system board and provides a visual representation of the removal procedure.
Steps 1. Peel the tape that secures the display-cable latch to the system board. 2. Lift the latch and disconnect the display cable from the system board.
3. Remove the two screws (M2x4) that secure the right-display hinge to the palm-rest and keyboard assembly. 4. Pry open the right-display hinge. 5. Remove the screw (M2x2.5) that secures the wireless-card bracket to the system board. 6. Lift the wireless-card bracket off the system board. 7. Disconnect the antenna cables from the system board. 8. Peel the tape that secures the antenna cables from the system board and move the antenna cables off the system board. 9.
6. 7. 8. 9. 10. Touchpad cable I/O-board cable Fingerprint-reader cable Coin-cell battery cable Wireless-card bracket and antenna cables The following images indicate the location of the system board and provides a visual representation of the installation procedure.
Steps 1. Align the I/O ports on the system board to the I/O port slots on the palm-rest and keyboard assembly. 2. Using the alignment posts, slide and at angle and place the system board on the palm-rest and keyboard assembly. 3. Replace the screw (M2x2) that secures the system board to the palm-restand keyboard assembly. NOTE: This step only applies to computers shipped with a 6-cell (78 Wh) battery configuration. NOTE: Do not replace the screw in the location marked Inspiron 7300. 4.
14. Place the wireless-card bracket on the wireless card. 15. Replace the screw (M2x2.5) that secures the wireless-card bracket to the system board. 16. Close the right-display hinge and align the screw holes on the right-display hinge with the screw holes on the palm-rest and keyboard assembly 17. Replace the two screws (M2x4) that secure the right-display hinge to the palm-rest and keyboard assembly. 18. Connect the display cable to the system board and close the latch. 19.
Steps After performing the pre-requisites you are left with the palm-rest and keyboard assembly. Installing the palm-rest and keyboard assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the palm-rest and keyboard assembly and provides a visual representation of the installation procedure.
Steps Place the palm-rest and keyboard assembly on a flat and clean surface and perform the post-requisites to install the palm-rest and keyboard assembly. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 62 Install the speakers. Install the system board. Install the power button. Install the I/O board. Install the touchpad. Install the coin-cell battery. Install the fingerprint-reader board. Install the display assembly. Install the touchpad.
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 SLN128938.
4 System 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 5. System setup options—System information menu (continued) General-System Information Maximum Clock Speed Displays the maximum processor clock speed. Intel Smart Cache Displays the Intel Smart Cache size. HT Capable Displays whether the processor is HyperThreading (HT) capable. 64-Bit Technology Displays whether 64-bit technology is used. Device Information Primary HDD Displays the primary hard drive information of the computer. M.2 SATA SSD Displays the M.
Table 6. System setup options—System Configuration menu (continued) System Configuration Enable External USB Port Enable or disable booting from USB mass storage devices connected to external USB port. Thunderbolt Adapter Configuration Enable or disable Thunderbolt technology support. Audio Enable or disable the integrated audio controller. Keyboard Illumination Enables you to choose the operating mode of the keyboard illumination feature.
Table 9. System setup options—Secure Boot menu (continued) Secure Boot Custom Mode Key Management Select the custom values for expert key management. Table 10. System setup options—Intel Software Guard Extensions menu Intel Software Guard Extensions Intel SGX Enable Enable or disable Intel Software Guard Extensions. Enclave Memory Size Set the Intel Software Guard Extensions Enclave Reserve Memory Size. Performance Multi Core Support Enable multiple cores. Default: Enabled.
Table 10. System setup options—Intel Software Guard Extensions menu (continued) Intel Software Guard Extensions Warnings and Errors Sets the boot process to pause when Warnings or Errors are detected. Sign of Life Indication Enable or disable to indicate during POST time that the power button press is acknowledged in a manner the user can either hear of feel. Table 11.
About this task NOTE: If BitLocker is enabled, it must be suspended before updating the system BIOS, and then re-enabled after the BIOS update is completed. Steps 1. Restart the computer. 2. Go to www.dell.com/support. ● Enter the Service Tag or Express Service Code and click Submit. ● Click Detect Product and follow the on-screen instructions. 3. If you are unable to detect or find the Service Tag, click Choose from all products. 4. Choose the Products category from the list.
Figure 1. DOS BIOS Update Screen Flashing the BIOS from the F12 One-Time boot menu Updating your system BIOS using a BIOS update.exe file copied to a FAT32 USB key and booting from the F12 one time boot menu. About this task BIOS Update You can run the BIOS update file from Windows using a bootable USB key or you can also update the BIOS from the F12 OneTime boot menu on the system.
3. The flash BIOS menu will open, and then click the Flash from file. 4. Select external USB device.
5. Once the file is selected, Double click the flash target file, then press submit. 6. Click the Update BIOS then system will reboot to flash the BIOS.
7. Once complete, the system will reboot and the BIOS update process is completed. System and setup password Table 16. System and setup password Password type Description System password Password that you must enter to log on to your system. Setup password Password that you must enter to access and make changes to the BIOS settings of your computer. You can create a system password and a setup password to secure your computer.
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. Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`). 3.
Clearing BIOS (System Setup) and System passwords About this task To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.
5 Troubleshooting Locate the Service Tag or Express Service Code of your Dell computer Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your Dell computer, we recommend entering the Service Tag or Express Service Code at www.dell.com/support. For more information on how to find the Service Tag for your computer, see Locate the Service Tag for your Dell Laptop.
Table 17. LED codes (continued) Diagnostic light codes Problem description Recommended solutions 3,2 PCI, video card/chip failure Replace the system board. 3,3 Recovery image not found Flash latest BIOS version. If problem persists, replace the system board. 3,4 Recovery image found but invalid Flash latest BIOS version. If problem persists, replace the system board. 3,5 Power-rail failure EC ran into power sequencing failure. If problem persists, replace the system board.
Flashing BIOS (USB key) Steps 1. Follow the procedure from step 1 to step 7 in "Flashing the BIOS" to download the latest BIOS setup program file. 2. Create a bootable USB drive. For more information see the knowledge base article SLN143196 at www.dell.com/support. 3. Copy the BIOS setup program file to the bootable USB drive. 4. Connect the bootable USB drive to the computer that needs the BIOS update. 5. Restart the computer and press F12 when the Dell logo is displayed on the screen. 6.
Flea power release About this task Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been removed. The following procedure provides the instructions on how to conduct flea power release: Steps 1. Turn off your computer. 2. Disconnect the power adapter from your computer. 3. Press and hold the power button for 15 seconds to drain the flea power. 4. Connect the power adapter to your computer. 5. Turn on your computer.
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 18. 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.
