Matthew Bittle posted an answer for this Acer Aspire AM1620-B1209A MiniTower Desktop PC & 20.1 LCD Bundle:
"if it is an Acer Aspire M1620-B1209A --> Buy an Intel DG41RQ (board rev. E54511-203)..."
Matthew Bittle posted an answer for this Acer Aspire AM1620-B1209A MiniTower Desktop PC & 20.1 LCD Bundle:
"The Intel DG41RQ Works in the acer aspire m1620-b1209a case"