core i7 temperature problems

[haraakiri]

I wanted to overclock my processor a bit, and I got thermalfusion 400 applied it and started my system. I am getting 50 degree at idle and goes beyond 75 with prime 95. Should I remove the heatsink and reapply it again? What's the correct way to apply thermal paste to core i7? Is thermalfusion 400 good enough? I live in Hyderabad(India), and no other thermal paste is available in my city. I need to get it from another city which would take 15-20 days. If not thermalfusion which one should I prefer? IC diamond carat 7 and ocz freezer look good to me. I might also apply some to my IOH chip. MSI eclipse runs hot at 65 degree currently

 

[NovJoe]

I still place my bet on Artic Silver 5.

Take the processor out, clean the old paste off the processor and its heatsink, then apply Artic Silver 5 to the processor.

 

[Blaise]

When applying thermal paste, it is possible to place too much or too little and run into heat problems. There has been discussion on various forums on how to best apply TIM to an i7 but the method I used seems to work fine (idle is around 40?C per core, LinX heats it up to ~71?C max). Use this instruction with one change:

NOTE: The Core i7. Please use the quad core instructions at left with one modification: If you orient the CORE i7 chip where the triangle marker is up and to the left it will put the cores on a horizontal plane. With the cores (quad) being on a horizontal plane you will apply a horizontal line of thermal compound as depicted in our quad core instructions and the picture above.

 

[evr999]

75?C Well in India it's hot  Since it's only 25 degrees difference with Prime it is OK, you shouldn't worry. Maybe the back of your case needs better ventilation.

Go for MX2  Don't use Arctic silver 5 ! It's electrically conductive and takes 200 heat cycles for silver particles to be totally effective. It's just old tech, messy, no sincerely it was great years ago. And MX2 has close performance if not better, and much safer. It is also stable over years, what most thermal pastes aren't.

 

[NovJoe]

I've been using AS5 and no problems so far. 

 

[Frankenputer]

The electrical conductivity of AS5 is very small.  There's no need to worry about AS5 if you apply it properly and it's not difficult to properly apply.  BTW, the differences in so-called performance testing of MX2 versus AS5 is less than 1?C--at least what I've seen.  Also, there was a test between different interface materials including cheese, and that article didn't find a big difference, even with using cheese(not recommended by the way).

 

[transdogmifier]

The electrical conductivity of AS5 is very small.  There's no need to worry about AS5 if you apply it properly and it's not difficult to properly apply.  BTW, the differences in so-called performance testing of MX2 versus AS5 is less than 1?C--at least what I've seen.  Also, there was a test between different interface materials including cheese, and that article didn't find a big difference, even with using cheese(not recommended by the way).

Limburger Silver 5 and Monterey JackX2?

 

[joker1973]

Fromunda my cooler cheese. :lol_anim:

 

[Blaise]

The other thing to note is whether you are reading the tCase (diode) temperature or the cores. If you are reading the tCase, the individual core temperatures (read by RealTemp and others) will probably by 25?C higher placing you Prime temperature close to 100?C - way too hot!

 

[Henry]

I don't know about the i7 stock cooler but all of the other Intel quad stock coolers are not worth much, I replaced my Q6600 cooler with an OCZ and temps went down 13oC-15oC. The OCZ I used isn't that great to begin with for a quad but did make a big difference anyway.

 

[haraakiri]

Thanks to all for replying. I am measuring temperature with realtemp, so its core temp. Even a slight overclock will make it more than 90, when i just stop it. . I have good ventilation, did proper cable management and with HAF 932, airflow shouln't be a problem. I would try arctic as many of you suggested, and would get a better cooler in future.