Dell G5 15, Service Manual

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Troubleshooting
Flashing the BIOS
You may need to flash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to flash the BIOS:
1 Turn on your computer.
2 Go to www.dell.com/support .
3 Click Product support , enter the Service Tag of your computer, and then click Submit .
NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.
4 Click Drivers & downloads > Find it myself .
5 Select the operating system installed on your computer.
6 Scroll down the page and expand BIOS .
7 Click Download to download the latest version of the BIOS for your computer.
8 After the download is complete, navigate to the folder where you saved the BIOS update file.
9 Double-click the BIOS update file icon and follow the instructions on the screen.
Flashing BIOS (USB key)
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 Boot to the USB drive from the One Time Boot Menu .
7 Type the BIOS setup program filename and press Enter .
8 The BIOS Update Utility appears. Follow the instructions on the screen to complete the BIOS update.
Enhanced Pre-Boot System Assessment (ePSA)
diagnostics
CAUTION: Use the ePSA diagnostics to test only your computer. Using this program with other computers may cause invalid
results or error messages.
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the
BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device
groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
• Display or save test results
• 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
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