No, it supports DDR3, not DDR2. Is there a reason what you are looking at getting DDR3? At this point in time, I would get a DDR2 setup. i7 is coming, meaning you'd need to get a new CPU, mobo, and ram when it comes.
NO, you cannot use DDR2 on a DDR3 motherboard. They are pin incompatible. It physically will not fit, unless you like damaging your components. I don't know what vertigo is talking about, but his info is incorrect!
Yea, I have to go ahead and agree with 474545b. DDR2 is not support on this board . If I'm not mistaken, they make both DDR2 and DDR3 versions of the x38/48 chipset boards and the GA-X48T-DQ6 is a DDR3 board. This is what I got from searching Google cause I'm not up to par on Intel offerings. Correct me if I'm wrong.
Hey, thats pretty cool, if someone gets enuf negative votes it hides their post
As said... NO.
I beleive however, there are/were some boards around with both DDR2+3 slots, meaning u could run either, not both. Not sure if any are still around tho, and as said i7 is coming and for now ddr3 is a total waste of time.