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i5-4670k multiplier always max

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  • CPUs
  • Intel i5
  • Intel
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September 17, 2014 10:30:45 AM

Hello guys,

I have recently built a system with the Intel i5-4670k as CPU. While running CPU-Z I have noticed the multiplier is 38 all the time, so it's always running at 3.8GHz, the max Turbo Boost frequency, even though it's idle. My temps are now around 45°C even at idle (intel cooler). I know it wasn't always like this, because the first time I used CPU-Z my speed was 800MHz. I have already used Speccy to check if CPU-Z was giving a crazy number, but it gives the same reading. I already loaded the BIOS defaults (Asus Z97-A) and made sure speedstep was enabled. C-States are at "auto" so that isn't the problem. How can I get my CPU to dial back while idle?

More about : 4670k multiplier max

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a c 76 à CPUs
a b å Intel
September 17, 2014 10:33:13 AM

check the windows power plans, make sure your plan is on balanced not on high performance. High performance causes the cpu to stay at max turbo to bring the most performance possible.
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a c 106 à CPUs
a b å Intel
September 17, 2014 10:35:46 AM

Also might have a process calling for the extra CPU juice. Start killing applications from task manager one at a time. A lot of sneaky applications will do silly things like use an entire core to search for WiFi hotspots (usually see this on laptops but the only example I could think of off the top of my head)
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September 17, 2014 10:40:41 AM

TechyInAZ said:
check the windows power plans, make sure your plan is on balanced not on high performance. High performance causes the cpu to stay at max turbo to bring the most performance possible.



It worked! I was on high performance, but I didn't see the connection between that and my cpu multiplier. You can't imagine how stupid I feel right now :p . Sorry for bothering, but thanks for your quick and accurate reply!
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a c 76 à CPUs
a b å Intel
September 17, 2014 10:42:11 AM

Snadet said:
TechyInAZ said:
check the windows power plans, make sure your plan is on balanced not on high performance. High performance causes the cpu to stay at max turbo to bring the most performance possible.



It worked! I was on high performance, but I didn't see the connection between that and my cpu multiplier. You can't imagine how stupid I feel right now :p . Sorry for bothering, but thanks for your quick and accurate reply!


No problem. I wouldn't of known either if I hadn't tested with power plans a year ago. :) 
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