Does it have a sticker on the ram like pc-2700 or pc-3200, something like that? All ram sticks are usually marked.
He is wrong about the DDR3 only being for the 1156/1366 socket MB's though, DDR3 was/is available on some of the 775 socket as well. I bought a P35 (775 socket) MB years ago with DDR3 capability.
Well I am so sorry that I never said DDR3 was for the 775 motherboards. That clearly left my mind for a moment.
And I bet you had a high-end 775 motherboard that was DDR3??
What is going on with people today. Seem like everyone is in a bad mood.