Look directly at the board for printed text near the RAM slots or PCIe slots for model names starting with letters like "IPM". 2. Search for the Specific Hardware Driver
If you don’t know the HP model, run in Command Prompt (admin): pegatron n14939 driver 91
By following this guide, you should resolve the Code 91 error and restore full functionality to your motherboard. If you remain stuck, post your specific Hardware ID in a tech forum (like TenForums or Tom’s Hardware), and reference this article for context. Look directly at the board for printed text
Windows Update is likely overwriting your manually installed driver. Use the wushowhide.diagcab tool to hide the update for that specific hardware ID. If you remain stuck, post your specific Hardware
: If you cannot find the specific "Driver 91" file, Windows Update or the Intel Support Assistant can often automatically identify and install the necessary chipset and VGA drivers . Pros & Cons Pros Cons Compact mini-ITX size Limited expansion slots compared to micro-ATX Supports modern 12th Gen Intel CPUs Hard to find official manufacturer support/documentation DDR4 memory support Frequently sold as "OEM-only" or refurbished If you'd like, let me know: