Hello All, I'm looking to upgrade my existing memory from 2GB to 4GB. I currently have 2GB OCZ value pro DDR2-667 value pro running at 625MHZ with 5-5-5-18-26-2t timings. I think can go with 4GB DDR2-1000 since my cpu is @ 2500MHz so my memory speed would come out to 2500MHz/5*2=1000MHz anyway, right? Can this also be achieved with DDR2-800 or even DDR2-1066? My motherboard is a Gigabyte GA-M51GM-S2G which supports up to DDR2-800 and it has the latest bios. I can manually adjust the memory speed (400/533/667/800) and timings but there are no voltage adjustments. What do you think will be the best/fastest memory for this motherboard? Also, if I am wrong about anything in my post, kindly let me know. Thank you.