CPU heat rising constantly after new thermal compound. Help?

dasautoman

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Dec 25, 2013
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First let me tell you my setup.

-A10-5800K
-F2A88X-D3H
-Stock cooler
-Manhattan CPU Thermal Compound

Ok. So I was using the stock CPU cooler and the paste came pre-applied, it worked fine for 2 weeks then all of a sudden my temps doubled and hit all the way up to 100°C... Another time when the heat was spiking from 60°C-80°C I went to check my heatsink to see if it was even hot. It was pretty cool.

So I went out to my cruddy local office/PC shop and picked up some temporary thermal paste (waiting til payday to get some Noctua NT-H1) and applied it, After applying it the temps skyrocketed and for the first time my PC restarted due to heat I'm assuming, went into BIOS and yes my temp was constantly rising, I had turned it off at 80°C. I feel I may have used to much, about 90% of the surface area is covered but the heatsink is actually having heat transferred to it very well!

Am I using to much thermal paste or is the paste of very low quality???
 

dasautoman

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Dec 25, 2013
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Yes, I had used like a 2 1/2 pea size by accident. This is my first built PC so I messed up my first application attempt lol. -_- I'll give a smaller amount a try and post my results.
 

firo40

Splendid
It's a mix of both actually, you only need a tiny amount of thermal paste it will spread it self over time. If its a no name brand of thermal paste then its probably not very effective aswell but using that much thermal paste creates insolation for the heat to build like that. Thermal compound is only meant to fill micro cracks on the surface of the heat sink to cpu nothing else so it really dosnt take much.
 

2x4b

Honorable
Oct 28, 2013
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11,360
The next step, if the temperatures still concern you, is to make sure there is good airflow through the case.
Invest in some case fans to draw cool air in the front and exhaust hot air out the back.
 
Yeah, most people don't bother with case fans because they have a good cooler. That is a bad idea. Coolers don't reduce the temperatures around them, they use the air in the tower, so if that air is stagnant, it will only continue to heat up.
 
The one with less paste was better I mean. That was your original? That sucks...
http://www.newegg.com/Product/Product.aspx?Item=N82E16835150124 These are some of the best case fans out there, they're really quiet for a non-silent fan, only 25db, most I see are 30, and they have a ton of airflow, no LEDs or anything, so they're really simple, and the cost goes straight to performance. http://www.newegg.com/Product/Product.aspx?Item=N82E16835103191 These are a bit louder, but have LEDs and slightly more airflow, and you can actually slow them down with an adapter to make them quiet (I wouldn't recommend it).