desktop series (like the M3450 or M3970). Because it is an OEM part, Acer does not provide a standalone retail manual.
Connecting the case wires to the front panel header is the most common installation challenge. The header is typically a 14-pin block (though sometimes fewer pins are present). : Pins 1 (+) & 2 (-). : Pins 2 (+) & 4 (-). Power Switch : Pins 6 & 8. Reset Switch : Pins 5 & 7. Orientation acer aahd3vc motherboard manual install