The chip is usually a Winbond or Macronix chip, commonly labeled with (8MB) or similar.
The following essay provides a technical overview and systematic approach to resolving BIOS-related failures in the HP Pro 3500 Series Microtower. hp pro 3500 series mt bios bin file fix
If the motherboard is "bricked" and doesn't respond to USB, you must use a hardware programmer like the . How to reset bios on hp pro 3500? - Facebook The chip is usually a Winbond or Macronix
Restoring the HP Pro 3500 Series MT: A Technical Guide to BIOS Recovery hp pro 3500 series mt bios bin file fix