C States and overclocking haswell

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New to overclocking and need some advice on c states and haswell.

I currently have my i5-4670k running a stable 4.4ghz at 1.26v. I have set the voltage manually rather than adaptive as I've been using aida64 for stability testing and others have mentioned using adaptive can mean the voltage will overshoot whilst being stressed.
I have followed a guide which suggests using the c states as set out below:

(Quote)
CPU C STATES: ENABLED - This is set to AUTO by default, change it to ENABLED and under CPU C STATES the following will appear, change as outlined:

ENHANCED C1: DISABLED

CPU C3 REPORT: ENABLED

CPU C6 REPORT: DISABLED

C6 LATENCY: SHORT

CPU C7 REPORT: DISABLED

C7 LATENCY: LONG

PACKAGE C3 STATE REPORT: C3

This setup will assure the system will run the CPU at the maximum lowest stable voltage and current when the CPU is idle and under far less load. This will allow very high CPU speeds with stability and not run high voltage and current draw under less demanding conditions.
Unlike processors of the past where C States are disabled for clocking, Haswell works very well with this setup. (Quote)


So basically, as it stands my voltage will be anywhere between 0.800v and 1.26v depending on load. This makes sense to me. My core speed however is fixed at 4.4ghz and doesnt change.

Does having this setup make sense to anyone or am I way off the mark? :confused:
 
Hi and welcome to the forums. :)

On my Asus Z87-A I set the minimum cpu multiplier to 8x with the voltage on manual. It then drops to 800mhz and 0.736v at idle.
 
On my Asus Z87-A I set the minimum cpu multiplier to 8x with the voltage on manual. It then drops to 800mhz and 0.736v at idle.

Thanks I might give that a go. Do you have EIST on or off?

Also, do you think this holds any truth; "Locking your CPU to the minimum multiplier when idle will make it feel sluggish but does nothing to save power"
 
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