Seagate ST95005620AS Firmware Update

This package provides the Windows/DOS based Seagate ST95005620AS (500G, 2.5", 9.5mm, SATA, 3Gb/s, 7200, 512n, SSH) Firmware Update and is supported on Alienware and Optiplex models that are running the following Operating Systems: DOS, XP, Vista and Windows 7.

Fixes & Enhancements

Fixes - Not Applicable Enhancements - Enhanced the hard drive performance


Version DEM4, A01


Serial ATA

Release date

31 Oct 2011

Last Updated

05 Mar 2014


Available formats

File Format:Hard-Drive
Download Type:HTTP
File Size: 8 MB
Format Description:This file format consists of an archive of files that may be decompressed to a directory on the hard drive. The installation can then be done from that directory.
To ensure the integrity of your download, please verify the checksum value.
Not available
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By downloading, you accept the terms of the Dell Software License Agreement.

Supported Operating Systems
Windows 7, 32-bit
Windows 7, 64-bit
Windows Vista, 32-bit
Windows Vista, 64-bit
Windows XP
Windows XP, 64-bit
Installation instructions
Windows based firmware update for ST95005620AS: 1. Download and unzip "" into your desktop. 2. In "MX35DEM4" folder, please search for the "Windows" folder. 3. Double click "MX000050.EXE" and it will begin to run. On the first screen you will select your language, and then select "OK". The next screen is a warning screen, please read and select "Next" if you agree. The next screen is the License Agreement screen. If you agree, click "I agree" and then click "Next". 4. You will then come to the screen that asks you to close and save all applications and to back up your data. When you are ready to start the firmware update, please check the "Begin firmware update procedure", and then click "Proceed". 5. The system will reboot and load the firmware. Once the firmware update is complete the system will boot up into Windows normally. DOS based firmware update for ST95005620AS: 1. Unzip "" into your bootable USB key. Boot up the computer with USB key. 2.In "Dos" folder, just type "DEM4.BAT" at the DOS prompt and press the enter key. 3. Your system will now start updating the HDD firmware. Once the firmware update is completed, your system will display a "DRIVE PASSED" message. 4. Remove your USB key, and turn off your system using the computers power button. Once the computer has been powered down, you can now turn the computer on normally.
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).