Acer Aspire 5100 SATA AMD Motherboard HCW51 LA-3121P REV:2B Tested --  100% Functional --INCLUDES MK36 AMD CPU Removed from ACER ASPIRE 5100  BL51 LAPTOP -- USES SATA HARD DRIVE    Bid with confidence.  ---Picture is EXACT Item  ==  bottom case  has windows VISTA HOME PREMUIM  COA.    Thanks for looking! -- if it is not mentioned as included, please assume it is not included.All items are used except indicated otherwise.  ACTUAL PICTURES