CPU Volts jumping up and down underload

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Jmitch38

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Dec 12, 2014
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My CPU voltage is jumping up and down under load, for example Prime95. I was watching in CPU-Z the voltage jump up and then down every second. It was going from 1.454 to 1.646 volts.

When the CPU idles the volts jump and down between 1.464 to 1.5 volts. My operating frequency stays the same under load and idle. I am running the AMD Phenom 965 X4 at stock speeds (3.4 GHz). Is this normal, or is something going wrong?

Motherboard: Gigabyte 970A-UD3P
 
Solution
clutchc


Try Hwinfo and compare how it reads: http://www.hwinfo.com/
Or try AMD Overdrive: http://www.techspot.com/downloads/4645-amd-overdrive.html

Btw, I have that same processor sitting unused on my shelf, and a Sapphire Dual X R9-280 sitting there too. When I last had them in service together on a MSI 785GM-E65 board, I had the CPU VID set at 1.475. But it fluctuated a lot...
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clutchc

clutchc

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Apr 22, 2009
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That is dynamic voltage regulation that you are seeing. And the app you are using only updates probably once every second or more often. It doesn't sound unusual depending on what the pgm running in the background is doing at the time. Have you compared it with any other voltage monitoring apps?
 
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Jmitch38

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Dec 12, 2014
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No not yet, what other good programs should I use?
 
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J

Jmitch38

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Dec 12, 2014
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CPU: 965 BE
Motherboard: 970A-UD3P
Video Card: Sapphire R9 280 2L edition
PSU: Corsair AX 850
HDD: Old 500GB from Western Digital
RAM: 2 Kingston HyperX 8GB 1333MHz with dual channel
 
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clutchc

clutchc

Titan
Ambassador
Apr 22, 2009
43,150
411
131,790


Try Hwinfo and compare how it reads: http://www.hwinfo.com/
Or try AMD Overdrive: http://www.techspot.com/downloads/4645-amd-overdrive.html

Btw, I have that same processor sitting unused on my shelf, and a Sapphire Dual X R9-280 sitting there too. When I last had them in service together on a MSI 785GM-E65 board, I had the CPU VID set at 1.475. But it fluctuated a lot depending on the CPU demand.
 
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Solution
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Jmitch38

Reputable
Dec 12, 2014
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0
4,510


I gave HWinfo a try. Only opened up once and no longer opens up. The voltage did stay constant at 1.488 volts. It was not overheating (stayed bellowed 50c). Thanks for the help.
 
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