This motherboard was an OEM (Original Equipment Manufacturer) board produced by Pegatron specifically for HP desktop systems (such as the HP Pavilion HPE h8 series). Because it was custom-built for HP, Pegatron never released a retail manual for it. To find layout details, front panel pinouts, or BIOS settings, you must refer to the specific HP desktop support page for the computer model it came in. You can search for your specific PC model on the HP Customer Support Portal
To locate pinout schemas, jumper configurations, and system maps, look through the primary channels listed below: pegatron 2ad5 manual link
I’ve noticed a few people looking for documentation on the motherboard (commonly found in HP All-in-One systems like the HP Pavilion 22, 23, and 24 series). It can be tricky to track down because Pegatron boards are OEM-specific and often don't have a standalone consumer manual like retail boards. You can search for your specific PC model
Intel Z75. This is a massive plus. While many OEM boards use locked-down, basic chipsets, the Z75 was a performance-oriented chipset that supports both 2nd Gen (Sandy Bridge) and 3rd Gen (Ivy Bridge) Intel Core processors. This is a massive plus
Having the is useless if you don't know how to use the document. Here is a practical walkthrough: