- Sep 2, 2006
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I've been rather disappointed with the matched 2 gig pair (2x1Gig) of this RAM - its standard 6400 stuff, TwinX, CAS5 version.
I've never known RAM NOT to like extra Vdimm before ... which seems to me an odd behaviour ...
At stock SPD speed 800 MHz, 5-5-5-15 - 1.9 VDimm is fine, Orthos stable for hours, but if I increase the Vdimm to 1.95V, won't last more than 3 minutes in Orthos, and above 1.95V, 2.0V, 2.05V, or 2.1V - won't last for more than 40 seconds ....
if I overclock slightly - up to 840MHz, 5-5-5-15 or even 18, 1.9V Vdimm is not enough, but 1.95V then suddenly becomes OK, but again, anything over that is stable for less than 3 minutes. Above 845 - at any voltage, completely unstable - but will boot.
I know I can't expect memory to overclock, but I've never known RAM not to like extra voltage, not enough one would of course expect it to be unstable.
Cooling is not a problem, case has 3 120mm fans, and case is large and uncluttered.
I've done some further tests - to see if I could work out what is going on.
If I set memory to 800 MHz, SPD settings, VDimm to 2.1V - then run Mem Test in dos - it doesn't get past test 5 without errors, test 5 gives 370 errors itself.
If I set memory to same settings, but VDimm to 1.9V - Mem Test passes fine.
I thought these modules were meant to take 2.1V without any problems ? Any idea to why it can't ?
thanks, Mark.
I've never known RAM NOT to like extra Vdimm before ... which seems to me an odd behaviour ...
At stock SPD speed 800 MHz, 5-5-5-15 - 1.9 VDimm is fine, Orthos stable for hours, but if I increase the Vdimm to 1.95V, won't last more than 3 minutes in Orthos, and above 1.95V, 2.0V, 2.05V, or 2.1V - won't last for more than 40 seconds ....
if I overclock slightly - up to 840MHz, 5-5-5-15 or even 18, 1.9V Vdimm is not enough, but 1.95V then suddenly becomes OK, but again, anything over that is stable for less than 3 minutes. Above 845 - at any voltage, completely unstable - but will boot.
I know I can't expect memory to overclock, but I've never known RAM not to like extra voltage, not enough one would of course expect it to be unstable.
Cooling is not a problem, case has 3 120mm fans, and case is large and uncluttered.
I've done some further tests - to see if I could work out what is going on.
If I set memory to 800 MHz, SPD settings, VDimm to 2.1V - then run Mem Test in dos - it doesn't get past test 5 without errors, test 5 gives 370 errors itself.
If I set memory to same settings, but VDimm to 1.9V - Mem Test passes fine.
I thought these modules were meant to take 2.1V without any problems ? Any idea to why it can't ?
thanks, Mark.