I got a deal from a friend of mine on 3 motherboards . The motherboards are Biostar GF7050-M2 , Jetway M26GTA-DG and Asus M2N68-CM . I have a PC that fried half a year ago (the motherboard and power supply to be exact) so I want to get one of these motherboards and fix my old computer up but I have no idea which one would work on my old parts . My old pc had an AMD Phenom II X4 975 (or 965/955 can't exactly recall that part unfortunetly I do remember it was 3.6 GHz and a quad core but I never payed much attention ) 2 sticks of 2GB DDR2 RAM Super Talent and an AMD Sapphire HD 6670 . I plan on getting a 400 watt power supply but first I need to know which one of these motherboards would be best for the parts I have . One more thing I would like to ask I opened up my old case to check the parts out and I noticed that my processor was on an AM2 socket . Could that have slowed down the processor when the PC was in use ?