RAM Running different speeds in the same system?

Shash

Shash

Shash

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Joined
7 Nov 2007
Posts
492
Hi guys,

I have a P5K Premium and had 4x1gb of Geil Black Dragon PC6400 C4 bought in pairs of 2gb. Recently 1 stick failed so I had to RMA a pair. OCUK Do not stock my ram anymore so they sent me some Corsair Ram (Corsair XMS2 2GB (2x1GB) DDR2 6400C4) as a replacement.

These are both specced for 800mhz at 4-4-4-12. The Geil has an REF cycle of 36 whereas the Corsair has an REF Cycle of 44 so that was one slower timing. My FSB is set to 390 and I have manually set 4-4-4-12 but they are running at different speeds according to Everest.

ramdx.jpg


The system is stable but this seems pretty weird to me. I can still Rma my Corsair replacement ram and offset the £46 value against some 2x2gb which will probably cost me an additional £30 or so. If I am taking risks by running this setup, or sacrificing stability or speed, I would rather do this. If it is not a problem or it is just Everest being weird, I am happy to stick with it.

Ideas much appreciated:confused:

Hmmm, looking at it again, it seems that I may be looking at the wrong pane, it does say that it's refresh time is reduced in the memory section though...
 
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I am not familiar with Everest but could it simply be displaying the memory's latency at different speeds?

EDIT: Just to clarify, it's not displaying the speeds and timings the memory's currently running at but the timings and ratings for each of the DIMM's.
 
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Stable

Ran various tests and it's stable for all of them. I had to drop my REF delay from 36 to 42 or so but real world that makes no difference that I can detect so I think I will keep this ram rather than spend another £30 and risk my overclock. I don't intend to go to 8gb before building new anyway.
 
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