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I have bought an i7 3770K. I have tried to stress it, N

ear full load computation using CUDA I was surprised that it gets 99°C at 68% of the CPU load, is this normal? I have to change the cooling system?

I use a Cooler Master Hyper TX3 cooling (that is for i5 maybe). Should I use the normal fan sold with the CPU?

On Idle my CPU too is in the gap 32°-38° C the problem is under stress (only 68%) and I'm not overclocking the system!

The problem could be due to the GPU? But I have checked and I don't think so.

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> i7 3770K High Temperature Wow, you really have a problem if your system is over 3,496°C. :-P –  Synetech Oct 1 '12 at 1:32
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Yes that is way too high. The TJMAX for i7's is 100 degrees. What you should do is stop your computer immediately and re-seat your cooler with new thermal paste, you have most likely just put the paste incorrectly. –  AlanTuring Oct 1 '12 at 1:54
    
is it a laptop? –  poz2k4444 Oct 1 '12 at 2:02
    
"I have tried to stress it" : Done! ;-) –  climenole Oct 1 '12 at 2:10
    
@AlanTuring The TJMAX is 105 degrees for the Ivy Bridge i7's. These temperatures are normal, and I honestly wouldn't be worried about them. overclockers.com/ivy-bridge-temperatures –  Huskehn Oct 1 '12 at 3:00
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1 Answer

You will probably want to check a few things to see if this is causing the High CPU Temperatures.

  1. Make sure that you used Thermal Paste
  2. Don't use too much. A drop or two is sufficient. A paper thin spread is ideal.
  3. Clean any excess paste around CPU and Heatsink with Qtip and Denatured Alcohol. If you have paste that is overflowing, the heat cannot dissipate properly.
  4. Make sure that you have a solid connection with the heatsink.
  5. Make sure that the heatsink is receiving proper ventilation. (free of dust bunnies)

I have the Coolermaster N520 on my Ivy Bridge Core i7 and idle it will run about 32c.

enter image description here

I needed to do a small video compression today and took a snapshot of the CPU load and CPU temperature. With a large CPU load, it still was about 35c-37c.

enter image description here

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Asus Aisuite monitors Tcase not core temperature... Check any other monitoring software the core temperatures won't match what that sensor is telling you. Your core temps are probably close to 50. You're comparing apples to oranges here... –  Kyle Oct 2 '12 at 19:24
    
Not trying to give you a hard time. You should actually be monitoring the tcase not tjunction since intel only releases specifications for tcase on desktop CPU's. Also core temps are incredibly unreliable: superuser.com/questions/477159/… –  Kyle Oct 2 '12 at 19:29
    
What are you monitoring with this program? I have 5 different temperature for my i7, (lmsensors) 1 for each core and 1 for physical id... And temp1 and temp2 for the motherboard that are always 28° and 30°.... –  InformateIt Oct 4 '12 at 1:33
    
How you could cool an i7 3th gen with that cooler that do not support the 1155 socket?? Are you joking?? (Ah, ok, maybe beacuse it's back compatible) –  InformateIt Oct 4 '12 at 1:54
    
It definitely works with the hardware provided in the box. No fabrication needed. –  kobaltz Oct 5 '12 at 13:05
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