thanks guys. i am gettint he k8 neo2 board, and i read that if you use all 4 dimms, it will put it in single channel mode, and if you only use 2, it will work in duel. not sure if its true, motherboard arrives tomorrow, just wasnt sure how much memory to order. I had a crapload of 512 memory layin around, just realized its only pc2700 so gotta order more. i guess 2x512 will be fine. now what is a good brand to get? iv heard that kingston, corsair and mushkin are good. And memory timings, i actually never really messed with them lol, i just oced the fsb multiplier and voltage. So basically, when buying ram,, the lower the numbers the better right? like 2-2-2-2 is better than 3-3-3-3. and i was also wondering what the 1T meant after some of them lol. sorry for all the questions.