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icantrap/old_msi_bios_update.md

Last active August 10, 2019 13:37
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Updating the BIOS on an old MSI motherboard where the download is a single executable.

I had an old motherboard I wanted to upgrade the BIOS on before turning it into the basis for a Plex media server. In particular, it was a MSI H61M-E33 (B3). The latest BIOS download was a ZIP file that contains a single executable file. That won't work for the M-Flash instructions that the website provides. Creating a bootable flash drive with DOS on it did the trick. I would think this method would work for any other BIOS upgrades that contain just the executable.

  1. Download rufus. Rufus is a utility to help create bootable USB drives.
  2. Insert your USB drive. Rufus will format this drive, erasing all data.
  3. Start up Roofus and choose the following options
  • Your USB drive
  • Boot FreeDOS
  1. Press START button.
  2. Once the process is complete, press CLOSE button.
  3. Copy the BIOS executable to the bootable USB drive.
  4. Reset to boot the USB drive.
  5. At the DOS prompt, run the executable and follow the prompts.

That took care of it for me.

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