The Pegatron 2A99 was built before Windows 10 and 11 were released. If you have upgraded to a modern OS, official drivers will not exist. Follow these steps to force compatibility:
Proper drivers ensure stability, fix bugs, improve security, and can even boost performance in legacy hardware. However, because this is an OEM board, you cannot go to Pegatron’s website for drivers. Instead, you must rely on HP, Windows Update, or chipset manufacturers.
HP modifies some drivers. If the manufacturer’s driver causes issues (e.g., audio jacks not working), revert to HP’s version. pegatron corporation 2a99 motherboard drivers upd
Detailed (tech/support post) Title: Help needed — Pegatron 2A99 motherboard drivers & BIOS update System: Pegatron 2A99 (OEM board), CPU: [insert CPU], OS: Windows 10/11 (64-bit) Issue: Fresh OS install — device manager shows missing drivers for chipset, audio, LAN (Ethernet), PCI\VEN_ and ACPI devices; also want to confirm latest BIOS and firmware for stability. What I’ve tried:
The Ultimate Guide to Pegatron Corporation 2A99 Motherboard Drivers The Pegatron 2A99 was built before Windows 10
: This board uses a legacy BIOS (not UEFI), which may prevent it from recognizing modern NVIDIA GTX 700 series or newer GPUs
Enter your desktop’s specific serial number or model number (found on the PC chassis sticker). Select your operating system. However, because this is an OEM board, you
Here is a blog post designed to help you or your readers navigate this process. How to Find and Update Pegatron 2A99 Motherboard Drivers
| Component | Driver Name | Version (Stable) | Source | | :--- | :--- | :--- | :--- | | Intel Chipset (H61) | Intel Chipset INF Utility | 9.4.0.1027 | Intel/HP | | Intel MEI | Intel Management Engine | 8.1.0.1252 | Intel/HP | | Realtek Audio (ALC662) | Realtek HD Audio Driver | 6.0.1.8703 | Realtek | | Realtek LAN (RTL8111E) | Realtek PCIe Ethernet Driver | 10.062 | Realtek | | Intel SATA | Intel RST (Rapid Storage) | 12.9.4.1000 | Intel | | Video (if using iGPU) | Intel HD Graphics (2nd/3rd gen) | 15.33.53.5161 | Intel (Archive) |
Avoid third-party driver updater tools. They often bundle malware or outdated drivers. Stick to official sources.