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Can I still use this thermal paste?

post #1 of 22
Thread Starter 
I bought Arctic Silver 5 TIM in October 2004 and am wondering if the paste has expired and if I can still use it on my machines? The reason I'm asking is because my i7-2600k is reaching 85C while playing Bad Company 2 with this TIM and I'm thinking it could be because the thermal paste is too old. So time for new TIM?
Edited by mrwalker - 8/22/11 at 1:16pm
post #2 of 22
I say if you can question it...then you shouldn't use it. Kind of like old leftovers in the fridge.

Though if it was sealed and unused I would think it would be OK. If it still spread nice then it is fine. The heat trasfer is a chemical property that would be the same a billion years from now baring any major changes to the laws of thermo dynamics.
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post #3 of 22
Some more information about ambient and other systems temps might be help us out a little more. But yes some new thermal paste could drop temps once its cured and as long as it looks fine(push the dry chunks out first) and not discolored or brittle I would use it.
post #4 of 22
Thread Starter 
I just ran Prime95 for a few minutes and temperatures reached 95C on one of the cores and I stopped it immediately. Tjmax for the i7-2600k is 98C. I was running the "In-place large FFTs (maximum heat, power consumption, some RAM tested)". I'm running stock fan/heatsink. Maybe I didn't apply the thermal paste correctly or it's too old for the task. What do you guys think?

I built this system a few months ago so it's way past the curing time for the thermal paste.

Btw, the ambient temps should be around 25-30C.
Edited by mrwalker - 8/22/11 at 1:39pm
post #5 of 22
TIM is cheap. If its expired, replace it and have no worries about it at all.
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post #6 of 22
Quote:
Originally Posted by mrwalker View Post
I just ran Prime95 for a few minutes and temperatures reached 95C on one of the cores and I stopped it immediately. Tjmax for the i7-2600k is 98C. I was running the "In-place large FFTs (maximum heat, power consumption, some RAM tested)". I'm running stock fan/heatsink. Maybe I didn't apply the thermal paste correctly or it's too old for the task. What do you guys think?

I built this system a few months ago so it's way past the curing time for the thermal paste.

Btw, the ambient temps should be around 25-30C.
It doesn't sound like you use thermal paste much so i'd try reapplying a few times before ordering more. If after a couple attempts it doesn't get better I'd get rid of it.

Did you remove the heat tape that was on the stock heat sink before adding the thermal paste? The stock head sink is meant to just go on with that little pad and nothing else. So you have to scrape/wipe that off first and then apply the good stuff

How are you monitoring the temps? Some software doesn't work very well. if you are hitting 90°+ under load I'd think even your BIOS temps would be in the 60's. If your BIOS temps are close to ambient than I think your temp reading is wrong. I think it would take more than expired thermal paste to get a 2600 to 90°. You take the most expired thermal paste you could find and it would probably still be better than that heat tape that is used on the stock coolers or what you see in a Dell and they won't run that hot.
Edited by Vagrant Storm - 8/22/11 at 2:03pm
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post #7 of 22
Why don't you just buy new thermal paste it's not risking using 7 year old thermal paste when you can just get new thermal paste for $5 which will be more than enough for 1 CPU.
    
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post #8 of 22
Im with Vagrant, I think something else is up, or the stock heatsink is just garbage. I used 5-6 year old paste on my X2 when I gave it to my mom and its working just fine, temps didnt change either from the last time I had change it.
post #9 of 22
Thread Starter 
I'm using CoreTemp to monitor temps but even CPUID's HWMonitor and RealTemp report the same temps as CoreTemp.

The way I applied it, I put some thermal paste on the CPU and used a business card to spread it around. Maybe I put too thick of a layer. I'll try to reapply it with the dot in the middle method and see if I get better results that way.

I'm planning on buying an aftermarket cooler and this is why I'm asking about the thermal paste, if it's too old I'll just grab both at the same time.
post #10 of 22
Quote:
Originally Posted by mrwalker View Post
I'm using CoreTemp to monitor temps but even CPUID's HWMonitor and RealTemp report the same temps as CoreTemp.

The way I applied it, I put some thermal paste on the CPU and used a business card to spread it around. Maybe I put too thick of a layer. I'll try to reapply it with the dot in the middle method and see if I get better results that way.

I'm planning on buying an aftermarket cooler and this is why I'm asking about the thermal paste, if it's too old I'll just grab both at the same time.
It would be safer to just get some even better TIM to go with your new aftermarket cooler tbh, you'll get double gains there.

I would say there is a chance that your AS5 has expired, and whilst your at it, just get some better ones, since there has been quite some developments over the years.

More speifically, I would recommend Shin-Etsu 778D, it's much better than AS5 and pretty cheap too
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