The Acer IPIMB-AR Rev 1.02A is a Micro-ATX motherboard commonly found in OEM desktops like the Acer Predator G3620, Gateway DX4870, and Acer Aspire M3985.
You're looking for a manual for the Acer IPIMBAR REV 102A motherboard. Here are a few options: acer ipimbar rev 102a manual top
is a Micro-ATX motherboard commonly found in pre-built systems like the Gateway DX4870 Go to product viewer dialog for this item. , Acer Aspire G3620 , and Acer Aspire M1935 The Acer IPIMB-AR Rev 1
Acer does not publicly release full PDF manuals for OEM motherboards. However, the Acer Aspire M3800 Service Guide contains the exact board layout. Search for: Acer Aspire G3620