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CPU getting to hot even after cleaning and new thermal paste.

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March 20, 2013 6:03:53 PM

Hi all,

My cpu idles at approx 45-50c but I have recently noticed it reaches 85-90c under full load and sometimes slightly higher touching 100c. I have changed the thermal paste recently (about 2 days ago) I used Arctic Silver 5, as I thought this may be the problem but it showed no improvements at all.

I have checked to make sure that the cpu fan is installed correctly, and it is fastened down tightly.

I was looking at a Cooler Master Hyper 612 PWM. Could it be that I just need a aftermarket cpu fan?

If it helps, I have 2 front and 1 side (120mm) fans for intake and 1 rear (120mm) and 1 (200mm) top as exhaust.

Nothing is overclocked.

Thanks.

My system spec is as follows:

- Gigabyte GA-X58A-UD3R rev 2.0
- Intel i7 930 2.93GHz
- 2x GTX 570 Sli
- 12gb Corsair XMS3 DDR3 Ram
- XFX 850w Black Edition
- Antec NineHundred v2
a b à CPUs
March 20, 2013 6:21:27 PM

The X58 platform is well know to run hot, but those temps are not normal at all, even in the stock cooler.

Have a look the Bios and check the voltages -- some mobos set higher voltages than the CPU really need -- so perhaps you have to set them manually.



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March 20, 2013 6:26:09 PM

I agree with jemm. Could be voltage problem also have you tweaked fan usage? Is your fan spinning at 100%? Disable samrt fan in bios and see how high temps go with that. How much of paste have you put on?
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a b à CPUs
March 20, 2013 6:28:05 PM

You definately need an aftermarket cooler on this... that kind of temps is normal with this I7 series, however it's still really hot and i recommend you to change the cooler to ensure long term reliability as heat is the worse enemy of PC components...

You could check the cooler master Hyper 212+ for about 20-30$ it's the better bang for the bucks for cheap cooler ;) 
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March 20, 2013 6:36:23 PM

Besides the CPU cooler do you have adequate cooling on your case ? The 2 GTX 570's in SLI should generate quite lot of heat, If airflow on your case is inadequate it will also contribute to the CPU temps.
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a c 75 à CPUs
March 20, 2013 6:40:39 PM

I agree with jemm. If the cooler is seated properly then the issue would seem to lie with the voltage being to high.

to add to what Jemm said: Albeit a different CPU and board both my machines tried to set a higher than needed voltage. For my AMD 965be it set it for 1.45V but only needs 1.35V at stock to be stable. For my Athlon II X4 640 it set it for 1.43 and only needed 1.38 to be stable. Both CPU's saw a 8°-10°C drop in temps under load after the switch in voltage. As you can see in my sig, I run an 902 case. I am well aware that the case ventilation is is more than adiquit.

The only thing I can think of is an over voltage situation. CPUID has a program that will monitor your voltage. Its called HW monitor (Hard Ware monitor). it will give Current, minimum and maximum voltages for the CPU along with temps for the hole system give it a shot to see what the voltages reach during stress like gaming or running Intel Burn Test (IBT).
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March 20, 2013 6:43:47 PM

Its not your problem, but its worth noting that Arctic Silver has a fairly long break in period. The temperatures should drop a little as it "breaks in".

I've also seen people not get the plastic clips for the OEM heat sinks locked in entirely, are you sire your heat sink is attached properly.
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March 20, 2013 6:46:29 PM

Jemm - I will look into the bios to see if anything is out of the ordinary

Feldmarschall - I will disable smart fan to see if it helps, i used the 'pea drop' method t apply thermal paste

spawnkiller - i will have a look into that cpu cooler as I think your right as I dont need no fantastic cooler as am not overclocking

derricklq - you may be onto somehting there, I recently had a look at my GPU temps at 100% full load and there are about 75-80c i might just have to upgrade all my cooling

Thanks for all the help :) 

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March 20, 2013 6:51:59 PM

Mr5oh said:
Its not your problem, but its worth noting that Arctic Silver has a fairly long break in period. The temperatures should drop a little as it "breaks in".

I've also seen people not get the plastic clips for the OEM heat sinks locked in entirely, are you sire your heat sink is attached properly.


Yes i am sure when I try to move the fan the clips flex the board slightly so i am pretty sure it is fastened down correctly
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a c 75 à CPUs
March 20, 2013 6:52:44 PM

derricklq said:
Besides the CPU cooler do you have adequate cooling on your case ? The 2 GTX 570's in SLI should generate quite lot of heat, If airflow on your case is inadequate it will also contribute to the CPU temps.


these cases move so much air when all fans are on high its like a vacuum cleaner. 2 front 120mm @ 79 CFM/ 1 rear 120mm @ 79 CFM/ 1 top 200mm @ 135+ CFM not to mention if you add a fan to the side panel. A optional 120mm for Mid case mounting to help cool the GPU's adding in the PSU with the fan sucking air out. These cases are very noisy but very good for air flow. The front 120mm fans can be put any where in the front you want, top mid bottom or even in between.

my pic is of the same case he has.
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March 20, 2013 7:44:24 PM

Checked the bios everything is fine the voltage is at 1.18v which i have researched and is fine for this cpu, i loaded the optimized defaults in the bios just to be sure. might just have to go and buy a new cpu cooler. The Cooler Master Hyper 212 looks like the one i will be getting.

Might even upgrade the 120mm fans just to be sure ;) 

Thanks for all your help guys :) 
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March 20, 2013 9:00:12 PM

Hyper 212 is great for the money. How did you apply the paste? Dot method or spread method?
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March 21, 2013 10:37:04 PM

doct3rphil said:
Hyper 212 is great for the money. How did you apply the paste? Dot method or spread method?


dot method
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March 22, 2013 2:05:26 AM

spawnkiller said:
You definately need an aftermarket cooler on this... that kind of temps is normal with this I7 series, however it's still really hot and i recommend you to change the cooler to ensure long term reliability as heat is the worse enemy of PC components...

You could check the cooler master Hyper 212+ for about 20-30$ it's the better bang for the bucks for cheap cooler ;) 


bought a Thermaltake ISGC-300 for $45, works great. Temps have dropped heaps, under full load it doesnt reach over 60c.

Thanks for the help :) 
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a b à CPUs
March 22, 2013 2:39:16 AM

good for you ;-) have fun with it !!!
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!