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 OptiPlex 780 System BIOS A15

Restart required 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.
Dell OptiPlex 780 System BIOS A15
Recommended

Find the best download for your system

Please enter your product details to view the latest driver information for your system

Search support

Enter your Dell Service Tag or model

Want to look up your product? Enter a product identifier. Show me how

This driver is not compatible

This driver is not applicable for the selected product. Choose another product to re-enter your product details for this driver or visit the Product Support page to view all drivers for a different product.

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

1.Integrate Intel MEFW 5.2.71.1048 into ME5 platforms.
2.Update Intel MEBx to 5.1.0.0020.
Read More

Version

A15, A15

Release date

03 Sept 2013

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 View Important Information
File Format: Flash BIOS executable
File Name: O780-A15.exe
File Size: 2.51 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:
2c6844fde9a64239985426e29dab3c7c
SHA1:
7d78b7495266fd8a9f7a1f58beaea23177147fff
SHA-256:
0bc409834351d6c98bcb70b1c25aea5438f8ff3a436da2b482f877e4f3ed5437

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

Additional details

Show All | Hide All
1.Integrate Intel MEFW 5.2.71.1048 into ME5 platforms.
2.Update Intel MEBx to 5.1.0.0020
Dell Optiplex 780
BIOS Update Executable for Windows/DOS

Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment (Non-Windows users)
NOTE: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
1. Copy the downloaded file to a bootable DOS USB key.
2. Boot from the USB key to the DOS prompt.
3. Run the file by typing copied file name where the executable is located.

Reboot will be required

Need help with BIOS issues?

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

Drivers help and tutorials