Speedstep (C1E) not working.

[Slackjaw190]

Just been messing around with my old rig and noticed that while idle the core speed remains at its max. I’ve enabled C1E in the bios and set the power option to balanced in Win7 but still no joy.

E6600 @3.0
Gigabyte 965P-DS3P
Win7

Any ideas

 

[wazza300]

Is eist enabled also? If using a fixed CPU voltage it won't downclock

 

[BrianB]

Pretty sure EIST and my Q6600 didn't go well together. I had to disable EIST and C1E for stability when overclocked. Only fixed voltage was available for my Q6600 also so without setting to auto which ramped up the voltage way too high I couldn't really use power saving anyway I guess.

 

[Slackjaw190]

eist was disable but I've enabled it with no sucess.

I know it used to work then I first set this PC up but that was with Vista

Current settings

 

[BrianB]

I wouldn't have both C1E and EIST enabled at the same time, 1 or the other for me. Could try it with CPU voltage set to auto?

 

[Slackjaw190]

hmm it seems to be working now kinda.

Occasionally it drops to a *6 multiplier. Guess it’s not a sensitive/good as modern stuff.

Thanks for your help

 

[BrianB]

I think it only changes the multiplier so if you have higher FSB probably can't go as low as when you are on the stock clocks.

 

[Orcvader]

Have you checked the Windows power profile as well?

 

[wazza300]

if in doubt just load optimised defaults in the bios,it will reset the bios to factory/default settings and power saving should work at default

 

[lettuce]

Sound like the problem im having/had? Have you checked your windows power options. Try changing to Performance and click on change power plans>change advanced power settings>process power management, and change the min process state form 100% to 50% and click apply and see what happens.

Also download realtemp, http://www.overclock.net/t/1330144/realtemp-t-i-edition and load that to see what your CPU usage and clock speed is doing you can also see what your C States are doing by click on the tab also

The above was suggested to me by Wazza300 and UncleWebb, so thanks to them!!