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

Dell Optiplex 745 System BIOS

This package provides the BIOS update for Dell OptiPlex 745 and is supported on OptiPlex and Latitude running the following Windows Operating Systems: Windos and DOS.

Fixes & Enhancements

Fixes
- Not Applicable

Enhancements
- Enhanced digital sign

Version

Version 2.6.6, 2.6.6

Category

BIOS

Release date

11 Jan 2012

Last Updated

21 Mar 2014

Importance

Available formats

File Format:Non-Packaged
File Name:HEIDEN_2.6.6.exe
Download Type:HTTP
File Size: 716 KB
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:
291401fa02d9f82a3699de1923252da1
SHA1:
c4a90442b47eaa93e896417ff546cc59eacc5f6b
SHA-256:
Not available

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

Installation instructions
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.
x
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).