Remember this also. You want to make sure you get a high speed RAM with your system. I run 2-3.2 Dualcores with DDR2. DDR2 has several different speeds of RAM that will all work in my system, but only 5 that I considered.

1. PC4200= 533Mhz, this is what came with my system
2. PC5400= 667Mhz
3. PC6400= 800Mhz
4. PC8000= 1000Mhz
5. PC8500= 1066Mhz
   I run 4 GBs of # 3 because it doesn't overclock my system, but it also resolved all my "OUT OF MEMORY" errors and it is the same speed as my Bus. It's not bad priced either @ tigerdirect.com

I would rather be Politically Incorrect,
Then have Politically Correct-Incorrectness!!!