Just a test on this pair of DDR3 Memory, with black heatspreaders, seems second best, compared to the blue HS.



Well I was lazy and just followed Hipro5's Memset Tweaks on the Memory and it worked great.



The funny part is with the exact same settings, but tras adjusted to one notch tighter @ 15, Superpi was unstable. @ 16 and all was smooth, never had tras made that difference for me till now.

940 @ CL7-6-6-16 seems like the ball park for these high-end DDR3s, probably due to MCH, be it on X38 or P35.