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 INSTALLEDThis file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available
Sign in to Windows as an admin to use automatic scan. If your're already signed in as an admin and seeing this message, please reboot.Your system is managed by your IT admin and features might be limited.
Find more updates. Use SupportAssist to find all the latest driver updates for your device.
Fixes & Enhancements
The following changes have been made to A03 BIOS to create A04:
* 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.
Dell Technologies recommends reviewing this update to determine if it applies to your system. The update contains changes that impact only certain configurations or provides new features that may or may not apply to your environment.
File Format:One or more self extracting disk images inside of a self extracting zip
File Name:BR75134.exe
File Size:513.15 KB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, then double-click it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available
File Format:Flash BIOS executable
File Name:WS450A04.EXE
File Size:329.89 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.
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.
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
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.