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Voltage changes after S3 sleep

T

The111

n00b
Joined
May 4, 2009
Messages
49
Hardware:
EVGA x58 mobo ("vanilla" 758 version, rev 1.1, latest BIOS)
Core i7 920 @ 3.8GHz (have tried this at stock clocks too)
6GB OCZ DDR3 1600MHz 7-7-7-24
MSI RADEON 4890

Software:
Vista x64
EVEREST for monitoring temps and voltages

When I resume from S3 sleep, I have noticed in EVEREST monitoring that some of my voltages change. Specifically, Vcore increases by 0.1V, and DIMM voltage decreases by 0.02V. There may be others that are changing too, for all I know. The Vcore increase is the most troublesome, as you can imagine that drives my temps up quite a bit, which also helps to prove that this is not any sort of voltage misreading.

One oddity is that if Vcore is on AUTO setting, it won't suffer the 0.1V increase after sleep. But any manual setting and it does. DIMM voltage suffers the 0.02V decrease regardless of whether setting is auto or manual.

I've posted this in the EVGA forums with no good response, and I have a ticket in with EVGA with no reply yet either. In the past I've found this forum to be a better resource... prove me right again! :)
 
Strange, this happened to me on my P5Q Pro motherboard. It lowered my voltage to the point that my CPU became unstable and caused BSOD's. I think it randomly stopped doing it though. You should try resetting everything in your BIOS and see what happens.
 
If I reset everything it doesn't happen with Vcore, but as soon as I take Vcore off auto it starts the 0.1V increase again.

DIMM V reduces by 0.02-0.04V after sleep even on auto, even with ALL BIOS to default.
 
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