Acer H67h2 Ad Motherboard Manual
The front panel header is critical for connecting your case's power button and LEDs. The pins are typically numbered on the bottom and 2-4-6-8 on the top: Acer H67H2-AD V1.0 - The Retro Web
This board supports Intel 2nd Generation Core i3, i5, and i7 "Sandy Bridge" processors. It can also support some 3rd Generation "Ivy Bridge" processors, but this often requires a specific BIOS update that Acer rolled out years ago. If you are upgrading, sticking to Sandy Bridge (e.g., i5-2500, i7-2600) is the safest bet to ensure compatibility without BIOS headaches. acer h67h2 ad motherboard manual