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Are My 3930k Temps Normal? - Page 2

post #11 of 15
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I cleaned the thermal compound off the heatsink and cpu, put a drop about 4 mm (3/16 on an inch) in the middle, am running Prime 95 on blend, how long until it sets properly? In Core Temp I'm getting around 78-79 on Core #5, 77-78 on Core #0, and around 71-73 on the others, seems to be before I did as suggested. i'm going to try what I did originally, 70-71 max under load was better. First i'm going to check when I take it off how well it was coated. frown.gif
Edited by KedarWolf - 8/2/13 at 9:19pm
    
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post #12 of 15
Thread Starter 
The corners and as bit of the edges had no thermal compound, I added a tiny bit more, made sure all the CPU has a bit of paste. Running Prime 95 now, will edit this post in a bit, usually takes around 30 minutes to get to max temps. Also, I believe my temps will go down a bit over time when the thermal compound sets, am I right?

Okay, I carefully reapplied the thermal compound several times until it was enough to just cover the CPU and heatsink without leaving any bare patches on either. Now my temps are 41 C. idle and 74-75 C. with Prime 95 on blend, on Core #0 and Core #5. The rest are under 70 C. Seems when I had more thermal paste the CPU ran cooler. I'm going to run Prime 95 overnight, both to test for stability and hoping it will set the thermal paste some while having Core Temp to shut my PC down it if exceeds 80 C. just to be safe. I have Core Temp logging as well. But I'm tired, need rest, I'll work on this more tomorrow.

Peace.
Edited by KedarWolf - 8/3/13 at 12:09am
    
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post #13 of 15
You just use a pea sized of thermal paste and let the pressure from the heatsink (applied equally) spread it. DO NOT spread it yourself.

doh.gif
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post #14 of 15
Thread Starter 
Okay, I tried using a pea sized amount of thermal compound, temps would go as high as 78 C., so I took the heatsink of the H100i off and saw that the corners of the CPU had no thermal compound on them but the sides had an excess of it. So I cleaned it all off the heatsink and CPU, put another pea sized drop of thermal compound on, but this time put a tiny drop on each corner and evenly replaced the heatsink, tightening the screws offset and gradually until they were all tight again. Now my cores are averaging around 72-73 C. I've watched Open Hardware Monitor though with Prime 95 running on blend and and after 40-50 minutes the CPU Package Power will get as high as 213 watts and hover around there and the CPU Cores Power will get around 192 watts and hover there awhile. When this happens and it will stay that way 5-10 minutes my temps may get as high as 77 C. Then they will lower to 200/177 or so and my temps go down to 72-73 again. Goes up and down like this. Is there any bios settings I can use to help stabilize the power? Don't need temps this high and I've used an entire tube of thermal compound resetting the heatsink. doh.gif
Edited by KedarWolf - 8/5/13 at 3:00am
    
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post #15 of 15
You're continually placing the thermal paste wrong doh.gif, why? The TIM only needs to cover the center or cores.. not the edges. It continues to spread by use.

The H100i is also not the great of a cooler even though it's water when compared to high-end air coolers or custom water loops. It's not much comparison, but to give you an idea.. stress testing my 3930K @ 4.8 with 1.35V and 1.392 at max load I hit max 69*C in the summer on air with ambient temps being 23-25*C inside or 74-78*F. Your 3930K is going to run a lot hotter than your 3820 by design and its two extra cores. Also, all chips weren't created equal.

*Edit* With that said, high/mid 70s with your overclock and voltage seem reasonable for your setup.

However, please watch this video on the different methods of application for TIM.
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