CPU 151EM Temperatures 85+ degrees - Faulty paste job?

[kinki]

Hi there,

I should clarify that is was me who put the paste on. I used Artic Silver and after some prolonged gaming, CoH which i dont blieve is specifically processor heavy, my CPU was exceeding 85 degrees in individual cores. (Screen below)

Imageshack - coretempscru.png

I posted with lower temperatures yeserday, but they have risen 10 degrees since...

I have a hard time believing that the paste job is faulty as its not really rocket science. Any opinions on the temps are appreciated.

[allinwonder]

85+ degree is totally normal for today's laptop processors. Unlike desktop processors, they are designed to work at 105 degree.

[LaptopNut]

My laptop CPU i7 2630qm has never gone beyond 75C and most cores usually hover around 70C regardless of what game I play whether GTA IV or Skyrim.

Did you clean the heatsink and CPU surface?

What method of paste application did you use?

Even if 85C may be a safe temp in terms of physical limitations of the SB CPU chips, I would still strive to get lower ones.

I always use the line method with MX3/MX4.

[b0b1man]

Thats too high of a temp. In my opinion.

[jigglywigglyx]

Sounds a bit high for just video games, 85c on a stress test is fine though.

[b0b1man]

You've got a 75W card, GTX560m, correct?

Im with AMD 6990M and its a 100W TDP rated. Never gettin anythin above 80'C. With 23-25'C ambient temps in my room.

[spectroplasm]

This might be caused either by non flush heatsinks, too much paste which will trap air bubbles, or too little paste. I'd would open the laptop and inspect the paste, and if you have some left over clean thoroughly and re-apply the paste.

My method involves goo gone an agent used to remove gummy paste from processors (that nasty gluey gray stock paste thingy) then I apply a small pea like drop of thermal paste at the center of the DIE and later on take a toothpick and make an X form from that paste like this [X] ( [ ] being the DIE) then I assemble the heatsink and cross bolt the screws in place to level everything in place.

[kinki]

Yea, i think i may have some bubbles in the CPU paste as it was the first i did and i opened it repeatedly to inspect it. I used a grain rice sized glob in the middle of the chip and hen the line method for the larger GPU unit.

I will open it up and re-apply the CPU paste as i believe bubbles may be the cause.

Thanks a lot for the multiple replies.

[spectroplasm]

yes I would suggest opening up the case and re-apply paste. Repeated checks on an applied heatsink will only make the paste take a "stucco" form in which it is guaranteed to trap air bubbles.

[d2c]

dont forget that COH is a cpu demanding game, but check your paste. On a side note finally they mentioned a COH2!!!! CANT WAIT