HP has retired official support for models over 10 years old. If your model is no longer listed, you may need to use third-party repositories. 2. Identify the NVIDIA Chipset The core of this motherboard is the NVIDIA MCP61
Restart → Press F10 during boot → Look for "BIOS Version" (e.g., 5.12). Compare with HP’s latest available. Pegatron Corporation 2a99 Motherboard Drivers
After reboot, check Device Manager. "PCI Simple Communications Controller" and "SM Bus Controller" should no longer have yellow marks. HP has retired official support for models over 10 years old
The Pegatron 2a99 BIOS is Phoenix or AMI. Updating it is risky because: Pegatron Corporation 2a99 Motherboard Drivers