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4670k thermal throttling

joelk2

joelk2

joelk2

Soldato
Joined
22 Nov 2010
Posts
5,796
So i have a 4670k not overclocked, it keeps hitting 100'c and throttling the core multiplier.

its not the cooler, ive just replaced that, anyone have any ideas?

is my cpu gone bad?
 
Edit. I took the cooler off an found the paste hadn’t spread. Took everything off and refitted.

It was 100c while idle, the same it was doing with old cooler (which I’m sure the pump had failed on)

Anyways. Refitted cooler Cryorig H7 Lumi and it cooled. Ran prime 95 for 30 mins to heat up cpu and it didn’t exceed 70
 
pastymuncher said:
That's more like it, now try some overclocking.
Click to expand...
I tried once before but never got anywhere. Not really clued up. I read some guides but was still confused.

Most places seemed to suggest 1.2v as a good starting point

This morning I went to 4ghz and upped Volts to 1.2 and bsod.

Dropped volts to 1.18 and ran Aida 64 for 1hr 30 and temps didn’t go above 61.

If I cant run with volts at 1.2 I don’t think I’m gunna be able to OC much more. I can try 4.2 at 1.18 and see how it goes.
 
You should be able to push 4.0 on 1.2 volts. Mine will do that and my chip isn't that great.

You may need to fiddle with a few more settings.
 
My 4670k needed 1.275v vcore and cpu input voltage set to 1.90v to run at 4.4Ghz. Set CPU Cache Voltage Overide to 1.30v and I could also overclock the cache to 4.4Ghz. It was rock solid at those settings. Don't be put off by needing to add extra voltage. As long as you keep the temps under control you could try up to 1.3v (I don't think your cooler could manage the temps with any higher than that).
 
If I’m bsod at 1.2 and stable at 1.18 the more than 1.2 will cause issues too?


4.2ghz and 1.25 volts currently running a stress test. You were right about volts. Increasing was the only way I could boot into windows.

When you say keeping temps under control what would you say is max? Using Aida64 to test unless you think something else would be better?
 
Last edited:
1hr aida64 - 4.2ghz @ 1.25v max temp was 67’c

Within seconds of prime95 it got to 89’c but has stuck there. Peaking to 90’c on occasions. Going to let that run for a while now. Tonight I’ll test some real world usage (gaming) and hopefully it stays stable
 
Real life usage won't get as hot as P95 anyway so that should be fine, just check your temps while gaming. You may find that now you have upped the volts to 1.25v that you may be able to use a higher multiplier so once you are happy with it at 4.2Ghz try 4.3Ghz. Mine was stable across 42x/43x/44x once it got a vcore boost although it was a extra step above yours (1.275v).
 
pastymuncher said:
Real life usage won't get as hot as P95 anyway so that should be fine, just check your temps while gaming. You may find that now you have upped the volts to 1.25v that you may be able to use a higher multiplier so once you are happy with it at 4.2Ghz try 4.3Ghz. Mine was stable across 42x/43x/44x once it got a vcore boost although it was a extra step above yours (1.275v).
Click to expand...
P95 crashed the pc. Might try real world with it at that and see how that goes. tried upping the volts a bit more 1.26, 1.27, 1.28 and had bsod
 
joelk2 said:
I tried once before but never got anywhere. Not really clued up. I read some guides but was still confused.

Most places seemed to suggest 1.2v as a good starting point

This morning I went to 4ghz and upped Volts to 1.2 and bsod.

Dropped volts to 1.18 and ran Aida 64 for 1hr 30 and temps didn’t go above 61.

If I cant run with volts at 1.2 I don’t think I’m gunna be able to OC much more. I can try 4.2 at 1.18 and see how it goes.
Click to expand...

There's more to it unfortunately than tweak voltage tweak multi, GO! Not with all CPUs but with a lot of them.

I suggest you find a really good Haswell OC guide and follow it. It will explain in detail.

There's no way your CPU won't take 1.2V. I assure you. It'll take it. You just need to tweak properly.

There is a really good Haswell OC guide at overclockers dot com (an american site). Go to forums, Intel CPUs, Stickies, Haswell OC thread.
 
You are actually safe up to 1.4v if your cooler can handle the heat output. Try adjusting cpu input voltage to 1.90v in addition to vcore at 1.25v. My 4670k wouldn't post at anything over 4.2Ghz with the cpu input voltage set any lower (stock is 1.80v so it's a relatively small increase).
 
Well I spend 3 hours gaming last night, played a ton of different games to test out what it’s normally used for.

At 4.2ghz 1.25v and it never got above 59’c. I’m happy with that. Gaming is normally the most demanding thing the pc is used for.
 
Is this an ok setup with fan placement/direction?

Red = 80mm fans
Green = 120mm fans
Purple = 140mm fans

UTuGTeq.png
 
As a rough guide the front and bottom fan positions should be set as intakes and the rear and top positions set as exhausts although in your setup that would mean you are exhausting a lot more than you are sucking in at the front. What case is that? I can't think of what one has a pair of 80mm rear fan positions these days.
 
pastymuncher said:
As a rough guide the front and bottom fan positions should be set as intakes and the rear and top positions set as exhausts although in your setup that would mean you are exhausting a lot more than you are sucking in at the front. What case is that? I can't think of what one has a pair of 80mm rear fan positions these days.
Click to expand...

Will switch them round next time I get a chance.

It actually has 3, 2 in main chamber and one in rear.

YbLfoCh.jpg
 
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