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Haswell Overclocking Guide [With Statistics] - Page 310

post #3091 of 19539
Quote:
Originally Posted by Darkwizzie View Post



Throttling means CPU is decreasing speed to prevent damage from excessive heat. So what are you running to cause 85C+ temps?

I run the AIDA64 FPU test using fixed voltages. At 42x the highest core reaches 94C, but there is no throttling, at 43x the highest core reaches 99C and it throttles a little bit like 2-4% according to AIDA64. I guess my heatsink is just not enough to cool this particular CPU past 42x.
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post #3092 of 19539
Thread Starter 
Quote:
Originally Posted by iatacs19 View Post


I run the AIDA64 FPU test using fixed voltages. At 42x the highest core reaches 94C, but there is no throttling, at 43x the highest core reaches 99C and it throttles a little bit like 2-4% according to AIDA64. I guess my heatsink is just not enough to cool this particular CPU past 42x.

 

That's amazing. While I never did Aida I did do prime on 1.25v and I was fine on D14, no throttle.

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post #3093 of 19539
Quote:
Originally Posted by Darkwizzie View Post

That's amazing. While I never did Aida I did do prime on 1.25v and I was fine on D14, no throttle.

What speed are you testing with Prime95?
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post #3094 of 19539
Quote:
Originally Posted by Forceman View Post

FIVR stands for Fully Integrated Voltage Regulator - it's the on-die VRMs. No idea what the BIOS settings do though, I know there is some kind of efficiency setting that shows in XTU, but I don't know what it does.
There is a bios setting for it, if so where?
post #3095 of 19539
Quote:
Originally Posted by iatacs19 View Post

I run the AIDA64 FPU test using fixed voltages. At 42x the highest core reaches 94C, but there is no throttling, at 43x the highest core reaches 99C and it throttles a little bit like 2-4% according to AIDA64. I guess my heatsink is just not enough to cool this particular CPU past 42x.
Don't run the FPU test alone. That's gonna throttle 99% of the overclocked chips. Run it with a combination with the other tests. But you are better off running Prime 95 27.9 instead or OCCT. AIDA might check all the "features" of the CPU but it doesn't check them thoroughly enough in my experience. But as a guideline, if you are unstable in AIDA, you are not even close to being stable on H.264.
post #3096 of 19539
Quote:
Originally Posted by t0tum View Post

There is a bios setting for it, if so where?

I've never seen one on my board, but he said his board (Biostar, I think it was) had one. The only palce I've ever seen anything to do with FIVR efficiency is in XTU.
post #3097 of 19539
Quote:
Originally Posted by t0tum View Post

There is a bios setting for it, if so where?

Quote:
Originally Posted by Forceman View Post

I've never seen one on my board, but he said his board (Biostar, I think it was) had one. The only palce I've ever seen anything to do with FIVR efficiency is in XTU.

On my Asus Hero it's under CPU Power Management > CPU Integrated VR Power Management Efficiency. Options are: Auto, High Performance, Balanced.


Edited by iatacs19 - 9/25/13 at 4:39pm
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post #3098 of 19539
Well my new chip showed up today and just got home, its batch L312B539 I hope its better than my L311
 
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post #3099 of 19539
Ok L312chip installed booted up 4.6 @ 1.25v <---first stab didn't try anything lower, Old chip L311 wouldn't boot 4.6 anything under 1.34, so far much better. 3 minutes into XTU with 4.6 @1.25 it restarted no bsod just restart. Bumped it to 1.27 @4.6 and passed 10 minutes XTU temps maxed at 62. So far much much better than my old chip. Onto further testing thumb.gif
 
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post #3100 of 19539
Quote:
Originally Posted by The Storm View Post

Ok L312chip installed booted up 4.6 @ 1.25v <---first stab didn't try anything lower, Old chip L311 wouldn't boot 4.6 anything under 1.34, so far much better. 3 minutes into XTU with 4.6 @1.25 it restarted no bsod just restart. Bumped it to 1.27 @4.6 and passed 10 minutes XTU temps maxed at 62. So far much much better than my old chip. Onto further testing thumb.gif

Nice! I just took a look at my chip and it is from the 313 batch. I'm rock solid stable at 4.5Ghz, and haven't really messed with much past there. I think I might mess with it a little.
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