4790k not throttling down with C steps enabled and EIST enabled..

[revoo]

Hi guys,

My 4790k seems to be always at ~4.4ghz (looking at task manager) even at complete idle (<1% utilization)

What gives? Are the new haswells different in this regard?

 

[rgd1101]

motherboard? some motherboard have OC on by default.

 

[Dorosh]

Have you tried using CPU-Z software? It's going to be more accurate than Task Manager.

 

[InvalidError]

Which power management plan did you choose in Windows' Power options? If you chose "Performance" then the minimum CPU power state is 100% which means no power-saving. Under "Balanced", the default minimum state is something like 5%, which should let Windows dial the CPU clock back as far as it can go.

 

[revoo]

@InvalidError that's a good idea, I obviously have a desktop, but you never know if windows 8 decided to use "maximum performance" it worked before which is funny (new build)

 

[Dorosh]

Which power management plan did you choose in Windows' Power options? If you chose "Performance" then the minimum CPU power state is 100% which means no power-saving. Under "Balanced", the default minimum state is something like 5%, which should let Windows dial the CPU clock back as far as it can go.

+1 on that. Check this especially if CPU-Z shows you as not throttling down.