Intel i5 760 temperatures

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Mystery92

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Aug 9, 2015
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4,510
Hi,

This past week I had an issue with my CPU. I was playing Starcraft 2 on max graphics, which usually isn't a problem, but all of a sudden as I was playing it dropped from about 80 fps to ~5 fps, so naturally I checked task manager, and it said that my CPU was at 100%. Even after closing my game and just trying to play a youtube video it couldn't handle it. So I downloaded RealTemp 3.70, which told me that my CPU was only running at about 30% load, but said that the temperatures were around 100 degrees Celsius!! I immediately ordered a new CPU cooler and new thermal paste, after receiving it the next day I took off my old (stock) cooler and removed the thermal paste, which was kind of flaky, applied new thermal paste and installed my new cooler. After all this the temperatures had dropped to about 45 degrees when idling and around 75 under normal loads during gaming, but when I stress tested it with prime95 the temps still reached ~90 to 95 degrees! Hence my post in this forum.

My setup:
CPU: Intel Core i5 760, not overclocked (I checked) running at 2.80GHz.
MB: ASUS P7P55D.
Memory: Corsair 6GB DDR3.
Case: Antec 900 II with 6 fans (3 intake and 3 exhaust) all on full blast.
Cooler: CoolerMaster Hyper TX3.
Paste: CoolerMaster thermal compound kit (it doesn't say anything else) which came with the cooler.
GPU: EVGA nVidia GTX 750 Ti 2047 MB.

Here is a picture of the minimum and maximum temperatures measured with normal loads (watching shows, gaming, browsing, etc.) and the voltages.
j7q3k4.jpg


I hope this is enough information for you to go on. I would greatly appreciate any help with this matter.

Thanks in advance!

 
Solution
Supernova1138
What's the ambient temperature of the room. If your room is hot eg. 30+ degrees celsius, that won't help. That said, you should be getting better temps with the Hyper TX3. Make sure your case has decent airflow going into it, and that the fans and air intakes aren't clogged with dust. Better cable management can help with airflow. Make sure your cooler is mounted in the right direction, if you have the intake fan pointing at your exhaust fan, then the cooler will be starved for air.

How much thermal paste did you apply? You don't need a lot, the best method is to put a pea sized dab in the center of the CPU and let the weight of the cooler spread it when you mount the cooler. Too much paste can lead to an insulating effect causing...
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Supernova1138

Supernova1138

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Mar 22, 2011
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What's the ambient temperature of the room. If your room is hot eg. 30+ degrees celsius, that won't help. That said, you should be getting better temps with the Hyper TX3. Make sure your case has decent airflow going into it, and that the fans and air intakes aren't clogged with dust. Better cable management can help with airflow. Make sure your cooler is mounted in the right direction, if you have the intake fan pointing at your exhaust fan, then the cooler will be starved for air.

How much thermal paste did you apply? You don't need a lot, the best method is to put a pea sized dab in the center of the CPU and let the weight of the cooler spread it when you mount the cooler. Too much paste can lead to an insulating effect causing higher temps.

Finally, double check that the cooler is mounted properly, the TX3 use push pins like the Intel stock coolers, and those are notorious for not being easy to secure properly. If your case has a cut out in the back that allows you to see the back of your motherboard, check to make sure all 4 pins are fully through the holes.
 
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Solution
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Mystery92

Reputable
Aug 9, 2015
2
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4,510


Okay, so I double checked everything, reapplied thermal paste, I think it had a little bit too much, and made 100% sure the cooler was turned the right way and secured properly, checked air flow of fans and switched two fans around so that more air would flow past the cooler. Also, there are three little switches at the top side of my motherboard that say OV_DRAM, OV_IMC and OV_CPU, which I assume stand for OverVoltage (?) for those parts, which I turned off. Now instead of 1.30 V for Vcore it says 1.08 V. I don't know if that last part has anything to do with the temperatures but I decided to do it anyway, since I wasn't planning on overclocking anything with those temps.

With all that done I switched on my PC, ran prime95 again and the highest temperature my CPU showed during the stress test was 59 degrees C! So I don't know what it was, but one of the things I did worked! Thanks for the advice Supernova1138. I appreciate it! :)
 
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