Dell Precision M6400 System BIOS, A05

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.

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Driver Id : 85HJC

Importance : Optional

Version : A05, A05 Latest version Recommended version Latest and Recommended version

Release Date : 08 Jun 2009

Download Type : System BIOS

Category : BIOS

Fixes / Enhancements:
1. Added TCM support.
2. Updated PXE OPTROM.
3. Added BIOS option to enable/disable Camera.
4. Added Security Erase feature support for normal security HDD.
5. Improved support for Wi-Fi Catcher.
6. Added support to make Pre-Boot Authentication single sign on work with HDD password.
7. Updated to 640x480 resolution for customer logo POST screen.
8. Fixed issue where BIOS setting changes not saved with Admin password set.
9. Updated BIOS setup wording of Charger Behavior item.
10. Updated warning message when changing the SATA Operation field in BIOS Setup.

The BIOS release has been validated on the following operating systems:
1. Microsoft Windows Vista Service Pack 1
2. Microsoft Windows XP Service Pack 3

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: M6400A05.EXE

File size: 1.2 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: 549a4c961da540472023336cbaf41eec

Download .EXE

File Format: This file format consists of a BIOS executable file. This format can be used to install from Linux.

File Name: M6400A05.BIN

File size: 981.01 KB

To ensure the integrity of your download, please verify the checksum value.

MD5: 60be7baff148a2e89f870dc7e16a1905

Download .BIN

Fixes & Enhancements

Installation instructions

Installation Instructions for Linux

If not already logged in as root, change user ID to root.

At the shell, switch to run level 1 by executing "init 1".

Make the update program executable by executing "chmod u+x update_program_name".

Run the update by executing "./update_program_name" from the shell.

Follow the remaining prompts to perform the update.

For help, type "./update_program_name --help" at the shell prompt.

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)

Download file to Desktop

The file M6400A05.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.

Run the BIOS update utility from Windows environment

Double click the Icon on your desktop labeled M6400A05.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 M6400A05.EXE to a bootable floppy.

Boot from the floppy to the DOS prompt.

Run the file by typing Y:\M6400A05.EXE (where y is the drive letter where the executable is located).

Dell Precision M6400 System BIOS, A05

Download Files

Fixes & Enhancements

Compatible Systems

Supported Operating Systems

Installation instructions