If you have landed on this page, you are likely staring at a Device Manager screen cluttered with yellow exclamation marks, or you have just unearthed an old HP or Compaq desktop from storage. The culprit? A motherboard labeled .
Since the Pegatron 2a99 is a legacy board, official drivers for newer operating systems like Windows 10 may not exist. You can bypass this restriction using Windows Compatibility Mode:
. If you’re reviving one of these legacy machines, finding the right drivers is essential for stability. Quick Specs: Pegatron 2A99 NVIDIA MCP61 AMD AM3 (Supports Athlon II and Phenom II)
| Component | VEN/DEV | Generic Driver | |-----------|---------|----------------| | Realtek Audio | VEN_10EC&DEV_0662 | Realtek HD Audio 2.82 | | Realtek LAN | VEN_10EC&DEV_8168 | Realtek PCIe GBE Family Controller | | AMD USB | VEN_1002&DEV_4396 | AMD Chipset Drivers (South Bridge) | | NVIDIA nForce LAN | VEN_10DE&DEV_0AB0 | NVIDIA nForce 430 drivers | Pegatron Corporation 2a99 Motherboard Drivers
The model number “2a99” is an internal Pegatron identifier used by HP for inventory and support purposes. Consequently, searching for “Pegatron 2a99 drivers” directly on Pegatron’s public website is rarely productive; instead, drivers must be obtained through HP’s support ecosystem.
For an older motherboard like this, keeping your software up-to-date is key. Updating the BIOS (Basic Input/Output System) can resolve compatibility issues, particularly with newer operating systems or hardware.
Since Windows 10 and Windows 11 do not natively support this older architecture, you will likely need drivers designed for Windows 7 or Windows Vista. You can install these using Windows Compatibility Mode if necessary. 1. Chipset and Storage Drivers (NVIDIA nForce) If you have landed on this page, you
Do you still have a missing driver after following this guide? Use the “Hardware IDs” method and paste the VEN/DEV codes into a search engine—you will often land on an HP forum post with a direct download link.
This is a legacy AMD graphics driver conflict. Uninstall all AMD display drivers using DDU (Display Driver Uninstaller) in safe mode, then reinstall the specific HP OEM ATI Radeon 3000 driver , not the generic AMD Crimson driver.
You must look for NVIDIA MCP61 chipset drivers or NVIDIA nForce 400/500 series chipset drivers . 2. Networking (LAN) Driver Since the Pegatron 2a99 is a legacy board,
The "interesting story" behind the Pegatron Corporation 2a99 motherboard
These boards were commonly found in HP desktop series like the Pavilion and Compaq models, including the during the early 2010s. The key technical specifications are:
This is usually the NVIDIA system management controller. Install the chipset driver to fix it.