. Run the installer and select "Download only" or "Copy to a location" to find the file in the destination folder Common ROM Families HP Pro 3500 MT typically uses the ROM family (SSID)
(e.g., IPISB-CU Rev 1.02 , ROM chip marking 25Q64 ), I can tell you the exact file name / version to search for safely on repair forums. hp pro 3500 series mt bios bin file better
The most reliable source for BIOS firmware is the HP Software and Driver Downloads page. IPISB-CU Rev 1.02