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Help with my overclocking

post #1 of 3
Thread Starter 
Hi people,

I'm not experienced with overclocking and kind of at a learning stage and I hope that I can grab some opinions about the issue i'm having; basically I have an 2.5 years old PC and the following are some of the specs.

CPU: i7 2600k
Cooler: Corsair H80
Mobo: ASUS P8Z68-V-PRO

Whats worrying me is that when i'm overclocking my CPU to 4.5Ghz the cpu cores temprature increases gradually over 10-15 minutes from 35-40 idel to 85-90 in full load mode (using Prime95 stress test).

while on 3.5ghz the cores temprature is 55-60 on full stress test.

Please note that my h80 is still functional I can feel the liquid pumping inside it.

Not quit sure where the problem is,

Here are my bios settings

Ai Tweaker > Ai Overclock Tuner: Manual
Ai Tweaker > BCLK/PCIE Frequency: 100.0
Ai Tweaker > Turbo Ratio: By All Cores
Ai Tweaker > By All Cores (Can Adjust in OS): 45
Ai Tweaker > Internal PLL Overvoltage: Disabled (this is not needed with an overclock this small)
Ai Tweaker > Memory Frequency: Auto
Ai Tweaker > EPU Power Saving Mode: Disabled
Ai Tweaker\ CPU Power Management > CPU Ratio: Auto
Ai Tweaker\ CPU Power Management > Enhanced Intel SpeedStep Technology: Enabled
Ai Tweaker\ CPU Power Management > Turbo Mode: Enabled
Ai Tweaker\ CPU Power Management > everything else on Auto
Ai Tweaker > Load-Line Calibration: Ultra High
Ai Tweaker > VRM Frequency: Auto
Ai Tweaker > VRM Spread Spectrum: Disabled
Ai Tweaker > Phase Control: Extreme
Ai Tweaker > Duty Control: Extreme
Ai Tweaker > CPU Current Capability: 100%
Ai Tweaker > iGPU Load-Line Calibration: Auto
Ai Tweaker > CPU Voltage: Offset Mode
Ai Tweaker > Offset Mode Sign: +
Ai Tweaker > CPU Offset Voltage: 0.005
Ai Tweaker > DRAM Voltage: 1.50V
Ai Tweaker > VCCIO Voltage: Auto
Ai Tweaker > CPU PLL Voltage: Auto
Ai Tweaker > PCH Voltage: Auto
Ai Tweaker > DRAM DATA REF Voltage on CHA: Auto
Ai Tweaker > DRAM CTRL REF Voltage on CHA: Auto
Ai Tweaker > DRAM DATA REF Voltage on CHB: Auto
Ai Tweaker > DRAM CTRL REF Voltage on CHB: Auto
Ai Tweaker > CPU Spread Spectrum: Disabled


Advanced\ CPU Configuration > CPU Ratio: Auto
Advanced\ CPU Configuration > Intel Adaptive Thermal Monitor: Enabled
Advanced\ CPU Configuration > Hyper-threading: Enabled
Advanced\ CPU Configuration > Active Processor Cores: All
Advanced\ CPU Configuration > Limit CPUID Maximum: Disabled
Advanced\ CPU Configuration > Execute Disable Bit: Enabled
Advanced\ CPU Configuration > Intel Virtualization Technology: Disabled
Advanced\ CPU Configuration > Enhanced Intel SpeedStep Technology: Enabled
Advanced\ CPU Configuration > Turbo Mode: Enabled
Advanced\ CPU Configuration > CPU C1E: Enabled
Advanced\ CPU Configuration > CPU C3 Report: Disabled
Advanced\ CPU Configuration > CPU C6 Report: Disabled

Any input is appreciated.

Thank you
post #2 of 3
I think the CPU c states should be enabled. Also set your load line calibration to medium. Ultra high is to high. And set CPU current capability over 100% if available.
Also why is your CPU ratio on auto? Shouldn't it be on 45x?

Also I really recommend using a manual voltage and test for OC stability around the CPU voltage of 1.2v to 1.38v max

Ultra high load line calibration seems to overshoot alot on a CPU offset voltage. That would be why you see the high CPU temperatures.
Edited by benjamen50 - 4/1/14 at 7:07pm
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Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
post #3 of 3
The chip is going to run hotter at higher frequencies and with higher voltages - it is normal and expected to have higher temps when overclocked.

In offset mode, as you have set, the offset is added to the chip's VID, and the chip's VID increases as frequency increases, so you are giving the chip higher voltages when you increase the speed. That is also normal.

If you enable C3 (and C6/7 if you want) you should see lower idle temps as well, because that allows the chip to cut voltage even further when idle.
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