Running my CPU @ 70C bad for AS5?

LOUISSSSS

Diamond Member
Dec 5, 2005
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is running my CPU @ 70C constant bad for the Artic Silver 5 thermal paste on my cpu?

will i have to replace it earlier if i run at such high temps for days at a time 24/7?

been doing a lot of stability testing the past few 5-6 days or so and plan on continuing.
 

fire400

Diamond Member
Nov 21, 2005
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if it's not dying or shuttin' down 'n it's stable 'n all and you're okay with your computer actin' as a second heater, then why not-
 

LOUISSSSS

Diamond Member
Dec 5, 2005
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Originally posted by: fire400
if it's not dying or shuttin' down 'n it's stable 'n all and you're okay with your computer actin' as a second heater, then why not-

its not dying. n i am testing for stability, n i am okay with the temps on my computer n it is not actin' like a second heater since the air exhausting out of my rear fan is pretty cool.
 

Idontcare

Elite Member
Oct 10, 1999
21,110
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Originally posted by: LOUISSSSS
Originally posted by: fire400
if it's not dying or shuttin' down 'n it's stable 'n all and you're okay with your computer actin' as a second heater, then why not-

its not dying. n i am testing for stability, n i am okay with the temps on my computer n it is not actin' like a second heater since the air exhausting out of my rear fan is pretty cool.

The heat output of your CPU (and computer) is dependent on the watts of heat being dissipated NOT the temperature of any given component within the system.

You could have a 10 mm^2 chip consuming 10W of power and it could operate at 200°C or 20°C and the room will not heat up any more or any less...10W is 10W.

In your case your chip is likely dissipating ~80W and whether the CPU is 25C or 80C, the wattage is what will make your room warm (or not).

This is true for light bulbs and space heaters as well. The heat from the device is Watts, not temperature of the device.
 

TmBlackFlag

Senior member
Dec 26, 2002
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check to make sure you didn't over apply the AS5. I did this when I first began building computers and it significantly raised my temps. If you're not sure how much to put on google it.
 

LOUISSSSS

Diamond Member
Dec 5, 2005
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i'm not asking how to apply as5 lol. i'm pretty sure i put it on correctly.

my question was whether it is bad for the as5 i have on to have my cpu load running at 70C 24/7 for a few weeks. will that mean i will have to change it at an earlier than usual time?
 

dguy6789

Diamond Member
Dec 9, 2002
8,558
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It is not going to really affect the AS5. It may shorten the life of your processor though. Running at 70C nonstop for weeks is not optimal.
 

LOUISSSSS

Diamond Member
Dec 5, 2005
8,770
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ic, well i exaggerated just to play it safe. its more like 63-65C for 1.5 weeks for overclocking and stability testing
 

Ika

Lifer
Mar 22, 2006
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I don't know if I've ever heard someone wonder about the longevity of a thermal paste... most people wonder about their CPUs.
 

LOUISSSSS

Diamond Member
Dec 5, 2005
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Originally posted by: Aflac
I don't know if I've ever heard someone wonder about the longevity of a thermal paste... most people wonder about their CPUs.

well how long does an OC'd CPU normally live? at least 5 years or so depending on the OC right? normally like 10 years...

but how often does a person normally change the TIM thats on their cpu? maybe every year? 2 years?
 

Conroy9

Senior member
Jan 28, 2000
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! I have never changed my thermal paste.. I put some on when I buy the cpu/mb and never take it off again

Does it need to be changed?
 

j0j081

Banned
Aug 26, 2007
1,090
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Originally posted by: Conroy9
! I have never changed my thermal paste.. I put some on when I buy the cpu/mb and never take it off again

Does it need to be changed?

I don't think so, not as long as you applied it right the first time. Only times you would change it are when you remove the cooler, swap processors etc.
 

LOUISSSSS

Diamond Member
Dec 5, 2005
8,770
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i change my TIM about once every 1.5-2 years during a summer or winter break, more likely summer because thats when temps get warm and it makes me feel better knowing that i've just reapplied my TIM and heatsink
 

Old Hippie

Diamond Member
Oct 8, 2005
6,361
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Originally posted by: Conroy9
! I have never changed my thermal paste.. I put some on when I buy the cpu/mb and never take it off again

Does it need to be changed?

Not unless my temps start rising.

Course, if ya have OCD, all bets are off! :D

 

VirtualLarry

No Lifer
Aug 25, 2001
56,570
10,204
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I had to change the TIM on a socketA CPU after a few years, temps started to rise. The white grease had dried out. That, or the fans needed cleaning, I forget which. I changed the TIM anyways, since I had removed the heatsink.

Btw, my E2140 @ 3.2GHz 1.425v runs at 84C, with a HyperTX2 cooler.
(I don't believe anyone that says they are running the same with the stock cooler and running significantly cooler than my rig. The stock cooler for me was 10C higher.)
 

bobsmith1492

Diamond Member
Feb 21, 2004
3,875
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Originally posted by: Timecop1967
Apply some diamonds under your quad if you reapply heat sink compound.
www.heatsinkfactory.com/ic-diamond-7-carat-thermal-compound-15-gram-p-16605.html

From what I understand a good sized pea amound is great and the more the merrier with this stuff.

That will never be true with a heatsink compound. If too much gets stuck between your CPU and heatsink it will act as a thermal barrier regardless of how well it actually conducts. There has to be a thin layer. If it's runny enough, maybe a big glob is fine, though. Of course, if I were selling diamond dust I would want you to use as much as possible, too. ;)
 

Timecop1967

Member
May 17, 2007
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Well with AS5 you are applying a thin horizontal line for a quad core and with this diamond paste they recommend a pea sized blob in the center that must cover the entire area of the quad when the heatsink is pushed down and wiggled. People that are using it say a little more is better for coverage than less. Also heating it up with a blowdryer or a few seconds in the microwave is necessary in most cases to get the stuff flowing out the tube.
 

Martimus

Diamond Member
Apr 24, 2007
4,490
157
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Originally posted by: Timecop1967
Apply some diamonds under your quad if you reapply heat sink compound.
www.heatsinkfactory.com/ic-diamond-7-carat-thermal-compound-15-gram-p-16605.html

From what I understand a good sized pea amound is great and the more the merrier with this stuff.

Diamond paste is still less conductive to heat than the Metal heatsink. It is better to use no thermal paste than to use too much. The whole purpose of thermal paste is to fill in the miniscule air gaps with something that is more conductive to heat transfer, but if you use too much you will reduce the amount that the heatsink touches the heatspreader, which will lower the heat conductivity. It is best to err on the light side than the heavy side with any thermal compound.