Lenovo uses different motherboard BIOS files for different M72e form factors. You must know your . Look for a sticker on the top, side, or back of the case.
For burning a bootable CD to flash the BIOS outside of Windows. 3. Installation Steps (Windows Method) lenovo thinkcentre m72e bios update
Here's some helpful text related to the Lenovo ThinkCentre M72e BIOS update: Lenovo uses different motherboard BIOS files for different
Your settings are now reset. Go back into BIOS: lenovo thinkcentre m72e bios update
on the motherboard to reset the NVRAM and restore connectivity. blog.entek.org.uk