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I want to overclock Haswell but these temps have me worried... - Page 2

post #11 of 23
Quote:
Originally Posted by Guerrilladawg View Post



I did a small ftt test three minutes long on my stock haswell. I'm running it on a mITX system with a noctua cooler but these temps seem kinda high and this is only on stock speed.

Is this bad?

Drop Vcore down to 1.10v and retest at stock speeds.
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post #12 of 23
Thread Starter 
Quote:
Originally Posted by snorbaard View Post

Windows may be underclocking to a much lower clockspeed while it is idle so there's at least a reason why idle temps can be so low.

No, I have a max performance energy plan so it's always running at 100% of its clockspeed.
Quote:
Originally Posted by Stay Puft View Post

Drop Vcore down to 1.10v and retest at stock speeds.

I will try this in a sec. Just reboot, adjust the Vcore in my BIOS and not anything else, right?
post #13 of 23
Quote:
Originally Posted by Stay Puft View Post

Drop Vcore down to 1.10v and retest at stock speeds.

^This. At 1.232 core voltage that is a pretty good temperature for air cooled and small ftt.
post #14 of 23
Quote:
Originally Posted by Guerrilladawg View Post

No, I have a max performance energy plan so it's always running at 100% of its clockspeed.
I will try this in a sec. Just reboot, adjust the Vcore in my BIOS and not anything else, right?

Right
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post #15 of 23
Hard to say if those temps are normal because you're using such an old version of Prime 95. I'm pretty certain that that version doesn't stress AVX so it runs much cooler than the newer versions.

On my 4770k with HT turned on, with the newest version of prime setup to run FFTs in-place, 8 threads, and forced 8K FFT size, i would be getting temps in the 85-90C range at 1.25v and those temps are pretty normal for Haswell for this test. You're much better off forcing Prime to run an FFT size of 1344-1792 in-place which runs much cooler and is far more realistic. With a 1344-1792 FFT in-place at 1.25v i see temps of around 75C max. Try updating to the newest version of prime and force this FFT size and post your results.

Other than that, you're voltage is way too high for the frequency you're running at. You could easily be at 4.2 Ghz and more realistically at 4.3-4.5 Ghz with that voltage.
Edited by SeanPoe - 3/15/14 at 4:09pm
post #16 of 23
Good point. That version doesn't support AVX instructions.
post #17 of 23
Thread Starter 


This is with the Vcore at 1,10
post #18 of 23
Thread Starter 
So I've read the haswell guide on the previous page but I still think it's kinda complex. My Sandy Bridge OC felt much easier back in the day.

I just want to hit 4,2 tbh, isn't there an easy way to hit that? I don't need to overclock ram or anything and I feel like the guide covers a lot of different stuff tongue.gif I just want to hit 4,2
post #19 of 23
Go watercooling way or delid your cpu
post #20 of 23
Try reapplying your thermal compound and reseating. Something's not right there, and you shouldn't have to delid at 38x.
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