Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.

Before updating, please read the installation instructions and important information noted below.

Dell XPS 420 System BIOS, A07

AUTO INSTALLED This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
Dimension XPS 420 A-candidate A07 System BIOS
Recommended

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Fixes & Enhancements

1.Enhanced audio.
Read More

Version

A07, A07

Release date

12 May 2009

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
Available formats
File Format: Flash BIOS executable
File Name: XPS420-A07.EXE
File Size: 683 KB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS-executable file. To use it, download the file and copy it to a DOS-bootable USB flash drive, then boot the system to the USB flash drive and run the program.
To ensure the integrity of your download, please verify the checksum value.
MD5:
3e6e2b38c977124c7668e9d491cacf9d
SHA1:
Not available
SHA-256:
Not available

By downloading, you accept the terms of the Dell Software License Agreement.

Additional details

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Custom Instructions for XPS420-A07.EXE:


Installation Instructions for the Universal (Windows/ DOS)

format


  1. Download file to Desktop


  2. Use one of the methods below to flash the Bios.





Download file to Desktop


The file XPS420-A07.EXE is using the Universal (Windows/ DOS) format

and is designed to be directly executed from Windows environment.


  1. Click Download now.
    The File Download window

    appears.


  2. Click the Save button.
    The Save As window

    appears.


  3. Select Desktop using the drop-down menu to the right of

    Save in.


  4. Click the Save button.
    A progress meter moves as the

    download is completed.


  5. If necessary, click X in the upper right-hand corner of

    the Download Progress Window to close it upon completion.


NOTE: Shut down all other applications prior to running the

BIOS update utility. The update utility reboots your system in order

to get the new BIOS loaded.


Run the BIOS update utility from Windows environment


  1. Double click the Icon on your desktop labeled XPS420-A07.EXE.
    The Dell BIOS Flash

    window appears


  2. Click the Continue button.
    The message Pressing OK

    will close all applications, shut down Windows, Flash the BIOS, then

    reboot.     appears.


  3. Click the OK button.
    The system will restart and the

    BIOS Flash will be completed.



Run the BIOS update utility from DOS environment (Non-Windows

users)


NOTE: You will need to provide a bootable DOS diskette. This

executable file does not create the DOS system files.

  1. Copy the file XPS420-A07.EXE to a bootable floppy.


  2. Boot from the floppy to the DOS prompt.


  3. Run the file by typing Y:\XPS420-A07.EXE (where y is the

    drive letter where the executable is located).





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Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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