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 755 System BIOS, A01

Initial BIOS release.

Fixes & Enhancements

initial release

Version

Version A01, A01

Category

BIOS

Release date

07 Sep 2007

Last Updated

03 Nov 2011

Importance

Available formats

File Format: Windows/DOS
File Name: O755-A01.EXE
Download Type: HTTP
File Size: 1.98 MB
Format Description:
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
0cd57c46cb3cbadf0556712469a39b9c
SHA1:
Not available
SHA-256:
Not available

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

Installation Instructions for the Universal (Windows/ DOS) format


  1. Download file to Desktop


  2. Use one of the methods below to flash the Bios.






Download file to Desktop


The file O755-A01.EXE is using the Universal (Windows/ DOS) format and is designed to be directly executed from Windows environment.


  1. Click Download now.
    The File Download window appears.


  2. Click the Save button.
    The Save As window appears.


  3. Select Desktop using the drop-down menu to the right of Save in.


  4. Click the Save button.
    A progress meter moves as the download is completed.


  5. If necessary, click X in the upper right-hand corner of the Download Progress Window to close it upon completion.


NOTE: Shut down all other applications prior to running the BIOS update utility. The update utility reboots your system in order to get the new BIOS loaded.



Run the BIOS update utility from Windows environment


  1. Double click the Icon on your desktop labeled O755-A01.EXE.
    The Dell BIOS Flash window appears


  2. Click the Continue button.
    The message Pressing OK will close all applications, shut down Windows, Flash the BIOS, then reboot. appears.


  3. Click the OK button.
    The system will restart and the BIOS Flash will be completed.



Run the BIOS update utility from DOS environment (Non-Windows users)


NOTE: You will need to provide a bootable DOS diskette. This executable file does not create the DOS system files.

  1. Copy the file O755-A01.EXE to a bootable floppy.


  2. Boot from the floppy to the DOS prompt.


  3. Run the file by typing Y:\O755-A01.EXE (where y is the drive letter where the executable is located).







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