For the (often found in OEM systems like HP, Asus, or Acer pre-builts), a BIOS update requires caution because Pegatron manufactures boards for other brands.
Please tell me the PC brand and model number (e.g., HP Compaq 8200 Elite SFF) or upload a screenshot of CPU-Z’s “Mainboard” tab. pegatron ipmsb-h61 bios update