i7 2600K/P8P67 Deluxe - CPU can't idle (under no load) with OC settings

[samx300]

Hi guys,

As the title explains, I am unable to get my CPU cores to idle at their base 1.6GHz frequency (Turbo Mode enabled) on my current OC. Obviously, I am talking <1% load scenarios.
CPU-Z (v1.6.3 x64) reports my CPU cores to be constantly running at 4.4GHz. I have not had this problem in the past, and CPU-Z reported the CPU frequency at 1.6GHz when the system was under no load - but non-idling has been an issue since the last few BIOS updates from Asus. My board P8P67 Deluxe (B3 revision) is currently running the latest 3602 BIOS from Asus. I have tried reflashing the BIOS a few times (using the sworn overclockers flash method, clearing the CMOS etc etc) and have also tested few different OC settings - but all to no avail. I just can't get the CPU cores to idle at 1.6GHz.

I am currently using the following OC settings:
AI Overclock Tuner: Manual
BLCK Freq: 100.00
Turbo Ratio: Enabled (All Cores)
By All Cores: 44
Internal PLL OverVoltage: Enabled
Mem Freq: 1866MHz
EPU Power Saving: Disabled
Load-Line Calibration: High
VRM Freq: Manual Set to 350
Phase Control: Extreme
Duty Contorl: Extreme
CPU Current Capability: 100%
CPU OverVoltage: Offset Mode
CPU Offset: + 0.070
DRAM Voltage: 1.65V
VCCSA Voltage: 1.12500
VCCIO Voltage: 1.18125
CPU PLL Voltage: 1.81250
PCH Voltage: Auto
CPU Spread Spectrum: Disabled
CPU Ratio: Auto
Intel Adaptive Thermal Monitor: Enabled
Intel Virtualization: Disabled
Intel SpeedStep: Enabled
Turbo Mode: Enabled
CPU C1E, C3, C6: Enabled
Asus EZ BIOS Mode: Normal

Any assistance will be much appreciated. Rest of the system specs can be found in my signature.

Thanks in advance.

 

[Doomedspeed]

Have you tried disabling Speedstep and the C States, booting up, then enabling them again on the next boot up?

 

[samx300]

Have you tried disabling Speedstep and the C States, booting up, then enabling them again on the next boot up?

Thanks for being the first person to try and help Yes, I tried disabling the Speedstep and C states and re-enabling them. Didn't help..

 

[Doomedspeed]

No problem, i see why no-one else has attempted it though. seems to be a tough issue..

You tried it back at stock?

 

[wazza300]

look in windows power saving options make sure your on balanced profile

 

[samx300]

No problem, i see why no-one else has attempted it though. seems to be a tough issue..

You tried it back at stock?

Yeah, reverting to stock BIOS settings work just fine between 1.6-3.4GHz..

 

[wazza300]

check to see yours is the same

 

[samx300]

check to see yours is the same

Hmm, never messed with the Windows Power Settings before. Only tweaked these on my laptop. Will have a look now to ensure its in the correct category (balanced) and with the right processor states. Will revert..

 

[samx300]

Thanks! It worked!!!

look in windows power saving options make sure your on balanced profile

Holy Moly - chainging the power settings in Windows to 'Balanced' fixed it!!! You sir, are awesome! CPU now happily switching between 1.6GHz and higher clocks (as required). CPU-Z confirms it too!

Thread resolved!