im just goin what it says on overclockersuk GeIL 2GB (2x1GB) DDR2 PC2-6400C4 800MHz Ultra Low Latency Dual Channel (GX22GB6400UDC) [GX22GB6400UDC] i ve done memtest86+ v4.20 and tested both cpu and harddrive all 3 passed.
i have it set to what overclockers uk have advised:- GeIL 2GB (2x1GB) DDR2 PC2-6400C4 800MHz Ultra Low Latency Dual Channel (GX22GB6400UDC) [GX22GB6400UDC]