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Weird Temps on 3770k using H100

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January 8, 2013 12:59:38 AM

Hi guys,
Today i just ran into a big problem. My idle temps are resonnable (25-30 degrees on normal room temp) but my load temps are really high. I ran intel burn test (set to very high) with my h100 set to high and i went as far as 75 degrees ... I don't think this is normal ...

I'm using a push configuration and when i'm on load, my motherboard automaticly put the multiplier of the processor to 41 (4100MHz).

Thanks for the help

- The Brownie

More about : weird temps 3770k h100

a b K Overclocking
January 8, 2013 2:04:54 AM

What are the specs for your system?
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January 8, 2013 2:13:29 AM

Case : Corsair Carbide 500r (Stock fans on it, none added)

Motherboard : Asus P8Z77-V LX

Processor : Intel Core i7 3770K

Memory : G.Skill Ripjaws 2x4GB 1600MHz

CPU Cooler : Corsair H100 (top mounting in push configuration)

Video card : Asus GeForce GTX 660Ti

SSD : Intel 320 120GB

Hard drive : Seagate 5400rpm SataII (Don't know the exact model)

Power supply : Corsair TX750M

It shouldn't jump as high as 75 degrees with that cooler it really piss me off .... Bye bye overclocking


- The Brownie
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a b K Overclocking
January 8, 2013 10:07:07 AM

When you set your OC, did you adjust your core voltage? 75C is not too high if you are truly at 100% utilization.

Try dropping your core volt .1.
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January 8, 2013 7:22:52 PM

My Asus board does an auto-OC so i can't control the voltage ...

I redid the test checking in CPU-Z for the core voltage and it's switching between 2.32 and 2.40 when at 4100MHz, still on High. This time i ran Prime95 instead and the hottest core was at 76, sometimes 77. (Core 1 : 70 Core 2 : 76 Core 3 : 76 Core 4 : 75)

- The Brownie

Edit : Now the core voltage is stable at 2.232
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a b K Overclocking
January 8, 2013 8:04:00 PM

Ivy Bridge doesnt like Intel Burn test
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January 8, 2013 8:08:02 PM

redeemer said:
Ivy Bridge doesnt like Intel Burn test


It does the same thing on Prime95 so i guess it's not only IntelBurnTest

- The Brownie
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a b K Overclocking
January 8, 2013 8:33:49 PM

I wouldn't sweat it. Just something to check from time to time.
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January 8, 2013 10:31:31 PM

COLGeek said:
I wouldn't sweat it. Just something to check from time to time.


What do you mean by that ? To look at my temps more often ? I actually have CoreTemp intstalled and showing my temps 24/7.

- The Brownie
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a b K Overclocking
January 8, 2013 11:05:35 PM

As long as you monitor for any usual spikes, you should be fine. You are actively monitoring your system, others don't.
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January 9, 2013 12:46:20 AM

Ok ok ... Yeah but it don't solve my problem ... I still have those temps ...

I forgot to add something : I'm not using the paste included with the H100, i removed it and applied some other silver paste i had because i had to reseat it. Can that cause those temps ?

- The Brownie
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a b K Overclocking
January 9, 2013 1:26:12 AM

Only if you put too much thermal compound. The idea is to use as little as possible.
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January 9, 2013 1:30:35 AM

COLGeek said:
Only if you put too much thermal compound. The idea is to use as little as possible.


I used the rice grain method (or pea method if you want). But i think i know my problem here. I used some Manhattan Silver Paste which uses 50% Siliconne, 20% Carbon and 30% Metal Oxide....

I have some Noctua NT-H1 laying around so i will try that.

I will buy some Arctic Silver during the week i think...


- The Brownie
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a b K Overclocking
January 9, 2013 1:33:46 AM

I am a big fan of Arctic Silver myself, as well. The Noctua material is good, too.
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January 9, 2013 1:37:26 AM

Part of the reason why you have high temp is the 2.00+ voltage from that auto-OC, which is quite high. Either get a better cooling rig, or do the OCing yourself (with hopefully lesser voltage).
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Best solution

a b K Overclocking
January 9, 2013 1:42:52 AM

Have you considered replacing the cheap thermal paste under the IHS? A young fella has an interesting video on youtube showing how he did it. Just search "Ivy Bridge IHS", it's 21:38 min. Even if you don't plan on doing it, ...still good to know.
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January 9, 2013 2:07:32 AM

A Bad Day said:
Part of the reason why you have high temp is the 2.00+ voltage from that auto-OC, which is quite high. Either get a better cooling rig, or do the OCing yourself (with hopefully lesser voltage).


So what voltage would you consider using on 4000MHz using 3770k and H100 ?

wdmfiber said:
Have you considered replacing the cheap thermal paste under the IHS? A young fella has an interesting video on youtube showing how he did it. Just search "Ivy Bridge IHS", it's 21:38 min. Even if you don't plan on doing it, ...still good to know.


I will search for that tomorrow but what does the video treats exactly ?

- The Brownie
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a b K Overclocking
January 9, 2013 2:26:57 AM

It's a modification to make Ivy Bridge CPU's like your 3770K run much cooler; way beyond anything you can do with different pastes between the CPU & H100.

Intel usually solders the heat speader to the chip. However on Ivy they cheaped out and used thermal paste. And to make matters worse they use a very cheap thermal paste. An i7-3770K makes less heat than say an i7-2700K (77 watts vs. 95 watts). But the H100(or any cooler) can't pull that heat away from the CPU after a certain point, as the heat transfer is just so poor. You could go as far to say the cheap tim(thermal interface material) is almost an insulator.
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a b K Overclocking
January 9, 2013 3:05:54 AM

Your temps are fine. Ivy is slightly hotter in most cases over Sandy bridge but thats due to the design of the chip its self.
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January 9, 2013 7:16:24 PM

wdmfiber said:
It's a modification to make Ivy Bridge CPU's like your 3770K run much cooler; way beyond anything you can do with different pastes between the CPU & H100.

Intel usually solders the heat speader to the chip. However on Ivy they cheaped out and used thermal paste. And to make matters worse they use a very cheap thermal paste. An i7-3770K makes less heat than say an i7-2700K (77 watts vs. 95 watts). But the H100(or any cooler) can't pull that heat away from the CPU after a certain point, as the heat transfer is just so poor. You could go as far to say the cheap tim(thermal interface material) is almost an insulator.


Yeah i already knew that but i didn't think it would be that hot and that i couldn't overclock it at all ... I was wondering between 60-70 degrees on high using my H100 but i got some crappy temps.

Rockdpm said:
Your temps are fine. Ivy is slightly hotter in most cases over Sandy bridge but thats due to the design of the chip its self.


Yes i know it but if i compare to most of the 3770k using H100, mine is hotter than theirs

- The Brownie
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a b K Overclocking
January 10, 2013 1:47:06 PM

In the video the guys CPU was getting uneven temps across all cores(during a stress test). Core 1 was approaching 100 degrees C, other cores were over 30 degrees cooler.

He pulled(cut) off the IHS, you could tell the factory application of thermal paste wasn't even. After cleaning the CPU, he evenly(line method) applied a quality paste and the CPU was fixxed. Although his CPU was so bad that it prob qualified for a warranty replacement; but it's now better for healthy overclock.
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January 10, 2013 7:25:54 PM

Ok so a little update for my temps here. I replaced my old thermal paste by some Noctua Nt-H1 and it seems to be okay now. I got 4.2GHz running with 1.2vcore and i'm under 70c !!! I guess that will do the job for now but if i see my temps going way too up i'm going to replace the thermal paster inside.



wdmfiber said:
In the video the guys CPU was getting uneven temps across all cores(during a stress test). Core 1 was approaching 100 degrees C, other cores were over 30 degrees cooler.

He pulled(cut) off the IHS, you could tell the factory application of thermal paste wasn't even. After cleaning the CPU, he evenly(line method) applied a quality paste and the CPU was fixxed. Although his CPU was so bad that it prob qualified for a warranty replacement; but it's now better for healthy overclock.


I just saw the video and as i said, if my temps get way too high i'm going to do it. He mentionned in the video that he couldn't use diamond paste because i will scratch the die. Is it going to do it with arctic silver ?


Thanks for the help guys .. now choosing the best answer :3

- The Brownie
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January 10, 2013 7:28:47 PM

Best answer selected by Bromeh.
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March 1, 2013 7:32:33 PM

Bromeh said:
My Asus board does an auto-OC so i can't control the voltage ...

I redid the test checking in CPU-Z for the core voltage and it's switching between 2.32 and 2.40 when at 4100MHz, still on High. This time i ran Prime95 instead and the hottest core was at 76, sometimes 77. (Core 1 : 70 Core 2 : 76 Core 3 : 76 Core 4 : 75)

- The Brownie

Edit : Now the core voltage is stable at 2.232


Lower the VCORE to 1.2 for a 4.1 GHz OC, and do it in the BIOS
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March 1, 2013 7:46:32 PM

CoLdFaCe KiLlEr said:
Lower the VCORE to 1.2 for a 4.1 GHz OC, and do it in the BIOS


I meant 1.232 :p  2.232 is impossible ahah


- The Brownie
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a b K Overclocking
March 14, 2013 3:00:18 PM

Bromeh said:
CoLdFaCe KiLlEr said:
Lower the VCORE to 1.2 for a 4.1 GHz OC, and do it in the BIOS


I meant 1.232 :p  2.232 is impossible ahah


- The Brownie

Thats what I call a death run
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