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I7-3770K Frequency Changing constantly

S.A.S

S.A.S

S.A.S

Associate
Joined
10 Jan 2009
Posts
758
Location
London
Hi, just built my new system with a I7-3770K and an Asus P8Z77-V Deluxe motherboard. I have noticed in CoreTemp that the CPU frequency constantly changes. I know that the Turbo boost does alter the frequency depending on certain conditions and wether the apllication in use allows for it to be higher. But i don't know if the clock speed should constantly fluctuate between 3.9 and 4.1 GHz when complately idle with no programs running except the basics for the system to operate.

Also from what i have seen it is the Multiplier that Changes not the Base Clock

Just wondered if this was normal for the System to do so?

if so then im quite impressed with the H100 cooler when it sits at 4.1Ghz :)
 
messed with any of the speedstep settings in bios?
it should jump down to 1.5 or something depending on the clock
 
Base clock shouldn't change on SB / IB.

The process is called SpeedStep. Sometimes the CPU will increase clock at idle (to some arbitrary value), because it's not 'really' idle. But no big deal really.

4.1GHz is not really that impressive for a 3770K and a H100. You should be able to go much higher, at least 4.5-4.6GHz if you wanted to put it through its paces. The limiting overclocking factor would be the vcore you are willing to put through the CPU, which in terms will give you the maximum clock you can run on your particular CPU.
 
olivier renault said:
Base clock shouldn't change on SB / IB.

The process is called SpeedStep. Sometimes the CPU will increase clock at idle (to some arbitrary value), because it's not 'really' idle. But no big deal really.

4.1GHz is not really that impressive for a 3770K and a H100. You should be able to go much higher, at least 4.5-4.6GHz if you wanted to put it through its paces. The limiting overclocking factor would be the vcore you are willing to put through the CPU, which in terms will give you the maximum clock you can run on your particular CPU.
Click to expand...

Thank you and yeah i agree that i can overclock quite well but i was just impressed wit hthe idle temp of 22-25c, just much lower than my old cpu :)
 
It's the Turbo Core in the CPU doing it's thing. Despite you sitting idle in Windows, the kernel will be still busy doing things like Indexing, TRIM, tidying the registry, etc. and those things will be loading the cores at different times which is making it fluctuate.
 
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