Pegatron 2ad5 Manual Link Info

: Supports Intel 2nd and 3rd Generation Core i3/i5/i7 processors (LGA 1155 socket), such as the Four DDR3 DIMM slots. Supports dual-channel memory architecture.

I managed to locate a copy of the official maintenance and service guide. This contains the board layout, front panel header pinouts, memory specs, and connector diagrams. pegatron 2ad5 manual link

4x DDR3 DIMM slots, usually supporting up to 32GB of RAM (depending on the specific HP BIOS version). Expansion: 1x PCIe x16 slot for graphics cards. : Supports Intel 2nd and 3rd Generation Core

The most common question with these boards is the power switch layout. If you are transplanting this board into a new case, refer to page X of the manual linked above, but generally, the header (J9) is located on the bottom right edge of the board. This contains the board layout, front panel header