I have been overclocking an i5-2500k and under load, the ratio drops from 44x to 40x or lower. I have disabled speedstep as well as c states. Any ideas?
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CPU not running at the ratio I set it to.
- Thread starter b34rhunt3r
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RampantAndroid
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- Jun 27, 2004
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Did you do anything with vdroop? What is your bclk? How did you OC - raise the cpu multiplier, or the turbo multiplier?
llc is at "level 2" in the asrock bios, second highest setting I assume it's 75%
bclk is 100
cpu ratio was raised, turbo is disabled
I really have no idea why the ratio would drop if turbo and speedstep are disabled =/ even if the voltage were dropping, wouldn't it just cause instability?
RampantAndroid
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Sorry, should have been clearer- use coretemp to look at bclk while under stress. It could be dropping.
Else, the CPU might be throttling. What are your temps?
LOLOLOL 
Make sure TURBO is enabled, you can't overclock without turbo.
If you want a static frequency, you can only turn off speedstep. But turbo has to stay on.
Make sure TURBO is enabled, you can't overclock without turbo.
If you want a static frequency, you can only turn off speedstep. But turbo has to stay on.
RampantAndroid
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LOLOLOL
Make sure TURBO is enabled, you can't overclock without turbo.
If you want a static frequency, you can only turn off speedstep. But turbo has to stay on.
Errr, I can. The multiplier is unlocked...
toyota
Lifer
- Apr 15, 2001
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um I am pretty sure I turned off turbo and raised the multiplier before to oc.LOLOLOL
Make sure TURBO is enabled, you can't overclock without turbo.
If you want a static frequency, you can only turn off speedstep. But turbo has to stay on.
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RampantAndroid
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Yeah. K chips can be OCed without turbo. You just always remain at that multi and the turbo logic is gone.
Could it be throttling due to power draw and not temps? Perhaps hitting a predefined tdp limit set in the board?
My asrock z68 extreme3 was doing this with my 2700k until i changed the Power Draw limit I believe in CPU voltage setting. It defaulted to 100 but i changed it to 200 after searching and seeing similar problems. I saw no more problems with overclocking after that.
RampantAndroid
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Oh, right - I forgot about that. There's also a time limit on it right? Or is that only turbo?
The default limit was 150 on my board(z68 pro-3m) so I set it to 200 first and then to 300. Both times the ratio would stay at 44 for about a minute and then drop to 35.
When I ran my 2500k@4900-5100Mhz with intel burn at 1.42-148v the cpu would start throttling at 86c.
I lowered the temps to solve the throttling problem.
I lowered the temps to solve the throttling problem.
RampantAndroid
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Try the ratio at 40 and see if it still drops
Sounds like either a power draw limit, or throttling.
No, you can't. you can adjust bclk, but that's NOT really going to net you much.
You need the turbo for the multipliers to workTRENDING THREADS
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