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 Precision System BIOS, A04
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.Check compatibility
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Fixes & Enhancements
* Fixed problem resuming from S3 Stand by.
* Fixed missing drive issue after booting to CDROM drive.
* Updated processor microcodes.
* Improved USB keyboard and mouse emulation.
* Fixed BIOS logo display problem on certain video cards.
* Fixed POST hot-key reboot persistence problem.
* Updated USB code to fix system hangs with some USB multi-function
printers, USB disk keys and USB CD-ROM drives. Improved USB boot
operations for USB devices. Fixed USB bulk transfer end point checking.
Enhanced USB support in Manufacturing.
* Fixed possible configuration error under Windows with some video cards
that have a PCI to PCI bridge.
* Fixed possible issue with the auto-power-on WEEKDAYS function of SETUP.
* Insure a successful PXE boot results in diag LED pattern GGGG instead of
GGGY.
* Improved SMART error message reporting.
* Prevent issue when power button override shutdown while in S3 Standby.
* Added support for Energy Star configuration.
Version
Release date
Download Type
Category
Importance
OptionalBy downloading, you accept the terms of the Dell Software License Agreement.
Important Information
- The Floppy Format is recommended for most users. Floppy format creates a bootable self-extracting disk.
- The Non-packaged Format is intended for advanced users that only require the bootable disk.
Installation Instructions
Floppy Format
Creating the disk:
This procedure requires one blank, formatted 3.5-inch floppy disk. Label the disk BIOS.
- Click Download now from the Download and install section, to begin.
The File Download window appears. - Click Save this program to disk.
- In the Save in: section, click the down arrow and click to select Desktop as the location then click Save.
- When the file download is complete, click Close button.
Close all open windows. - Double-click the down loaded file WS450A04.EXE on your Desktop.
If the Security Warning window appears, click Yes. - Click the Setup button.
A black MS-DOS window appears. - Press the <Enter> key.
- Insert a formatted floppy disk in the floppy disk drive and press the <Enter> key.
- Press the <Y> key to begin copying files.
The message End of the disk set appears. - Press the <Enter> key.
- Click the Start button,
- Click the Run button.
- Type a: in
the Open box and click OK.
A list of files on the floppy disk appears. - Close all open windows and leave the disk in the floppy drive.
Skip to the section Flashing the BIOS below.
If you are creating this disk on another computer, remove the disk. Then insert it into the system that needs the BIOS flashed, and resume the procedure.
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Non-Packaged Format
Creating the disk:
This procedure requires one blank, formatted 3.5-inch floppy disk. Label the disk BIOS.
- Click Download now from the Download and install section, to begin.
The File Download window appears. - Click Save this program to disk.
- In the Save in: section, click the down arrow and click to select Desktop as the location then click Save.
- When the file download is complete, click Close button.
Close all open windows. - Insert a blank, bootable, formatted 3.5-inch floppy disk.
- Right-click the downloaded file, point to Send Tothen click to select 3 1/2 Floppy (a), and skip to the section Flashing the BIOS
below.
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Flashing the BIOS
NOTICE:
Changing the system BIOS may result in unintended side affects, such as
incompatibility of the new BIOS with installed hardware. If problems arise
after a BIOS change, it may be necessary to return the system to the
original version of the BIOS.
- If you are flashing the BIOS on a portable computer, be sure that
the AC adapter is plugged in and the computer is not operating on battery
power. - Ensure that the Flash BIOS disk is inserted into the floppy disk
drive. - Click the Start button, click Shut Down, click
Restart, then click OK.
The computer will restart
and boot to the floppy disk.
NOTE:
If the flash BIOS