Download Files
File Format: 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.
File Name: E6400A31.exe
File size: 2.85 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 33891bcedf1d02c827fc754c4050c293
SHA1: 9d70c66df570c939ae5879d25394e2b94041bf58
Fixes & Enhancements
1. Update Peryn CPU Micro code.
2. Update Intel TXT BIOS AC Module
3. Added support for Signed Firmware Updates.
Supported Operating Systems
Installation instructions
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Installation Instructions for the Universal (Windows/ DOS) format
Download file to Desktop
Use one of the methods below to flash the Bios.
Run the BIOS update utility from Windows environment
Run the BIOS update utility from DOS environment (Non-Windows users)
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Download file to Desktop
The file E6400A31.EXE is using the Universal (Windows/ DOS) format and is designed to be directly executed from Windows environment.
Click Download now.The File Download window appears.
Click the Save button.The Save As window appears.
Select Desktop using the drop-down menu to the right of Save in.
Click the Save button.A progress meter moves as the download is completed.
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.
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Run the BIOS update utility from Windows environment
Double click the Icon on your desktop labeled E6400A31.EXE.The Dell BIOS Flash window appears
Click the Continue button.The message Pressing OK will close all applications, shut down Windows, Flash the BIOS, then reboot. appears.
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.
Copy the file E6400A31.EXE to a bootable floppy.
Boot from the floppy to the DOS prompt.
Run the file by typing Y:\E6400A31.EXE (where y is the drive letter where the executable is located).