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.
Optiplex 990 system BIOS
Installed This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.OptiPlex 990 system BIOS
Recommended
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Fixes & Enhancements
Fixes/Enhancements
------------------
1. Addressed some hard drives detection issue.
2. Addressed disable serial port cause system long boot issue.
3. Addressed PCI card not properly recognized.
4. Updated to the 7.1.52.1176 version of the Intel MEFW.
Read More------------------
1. Addressed some hard drives detection issue.
2. Addressed disable serial port cause system long boot issue.
3. Addressed PCI card not properly recognized.
4. Updated to the 7.1.52.1176 version of the Intel MEFW.
Version
A15, A15
Release date
10 Sep 2012
Download Type
System BIOS
Category
BIOS
Importance
RecommendedDell 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 View Important Information
File Format: Flash BIOS executable
File Name: O990-A15.exe
File Size: 5.55 MB
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:
c91bc8bd002221ff26de0183b7f139fd
SHA1:
7e8c5ad2dcf1ff3e6886657327c698c44a3d823a
SHA-256:
346623f0f3314c3acde5dad69b0489356337951892036cf92667bf8354d8f5fe
By downloading, you accept the terms of the Dell Software License Agreement.
Important Information
Please note that if the A04 or before A04 BIOS is currently installed on your system
you must first update to A05 BIOS and then flash to the latest A-rev BIOS.
Please note that if the A05 or after A05 BIOS and before A10 is currently installed on your system
you must first update to A10 BIOS and then flash to the latest A-rev BIOS.
you must first update to A05 BIOS and then flash to the latest A-rev BIOS.
Please note that if the A05 or after A05 BIOS and before A10 is currently installed on your system
you must first update to A10 BIOS and then flash to the latest A-rev BIOS.
Applies to
Dell Optiplex 990
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting guideDrivers help and tutorials
For more downloads go to the Drivers and downloads. For help on using the information on this page, please visit Driver Help and Tutorials.