XMP profile increases CPU temps.

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chunk266

Honorable
May 21, 2013
4
0
10,510
With my ram at default settings and XMP disabled, I get idle cpu temps at 35-40 degrees C. With XMP enabled, idle temps sit at a solid 50.

HwinFO64 shows that Vcore is at 1.168 with XMP, and 0.096 without.

Should I be worried about any of this? 50 degrees sounds a bit warm. I'm guessing all this has something to do with Haswell's sleepy state or something.

SPECS:
i5 4670k with stock cooler
MSI Z87-G45 motherboard
CMX8GX3M2A1600C11 ram (2 x 4GB)

Nothing is overclocked.
 
Solution
Supernova1138
When you turn on XMP, you disable the idle states on your CPU, that means when your CPU doesn't have anything to do, it won't downclock itself, it will continue to run at its full clockspeed, that's why your idle temps are higher with XMP on. For the stock cooler, 50 celsius isn't a bad temp if your CPU is running at maximum clocks constantly.
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Supernova1138

Supernova1138

Illustrious
Mar 22, 2011
5,340
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37,690
When you turn on XMP, you disable the idle states on your CPU, that means when your CPU doesn't have anything to do, it won't downclock itself, it will continue to run at its full clockspeed, that's why your idle temps are higher with XMP on. For the stock cooler, 50 celsius isn't a bad temp if your CPU is running at maximum clocks constantly.
 
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