Left the PC on and when I walked back in the room there was a smell much like a wood fire and no life from the PC. So I took it apart and found a component had fallen off as pictured below... The part has a number of 3R3 348 CXD which does look somewhat blacker than it should and damaged on one corner! Comes from an Asrock AM1H-ITX motherboard. Any of you wise folk know where I can source a replacement part to resurrect my board? Any help much appreciated as always!