Reusing 20 minute old thermal paste?

ploxxies · May 8, 2013

Hey guys, I installed my new CPU into my new mobo, but the mobo was dead. So... I moved my CPU back to my old one, and the paste is still very fresh and plentiful on both the heatsink and CPU. I wanted to know if it was okay to reuse it, because I REALLY don't want to drive all the way out to Radioshack, as it is about a 30 minute one way drive. I could understand if it was like months old, but I've just now tried it.

I've uploaded pictures... Thanks!
http://imgur.com/ZnRO2kH,m6DodUj

rex4235 · May 8, 2013

Should theoretically be fine, Id be worried about contaminates though. Paste is tacky, and will trap any dust/ debris that lands on it.

ur6beersaway · May 8, 2013

Nice job! Shouldn't be a problem but check your temps on startup.

Guest · May 8, 2013

And air-bubbles from removing and re-applying will result in less contact meaning warmer temps (could be so little you don't see a difference, or it could be massive.) As a rule, if you remove the heatsink, ALWAYS apply fresh paste. If you are out of paste, just go buy more and don't remove your heatsink until you do.

ploxxies · May 8, 2013

ur6beersaway :

I feel sarcasm in "Nice job!"

And air-bubbles from removing and re-applying will result in less contact meaning warmer temps (could be so little you don't see a difference, or it could be massive.) As a rule, if you remove the heatsink, ALWAYS apply fresh paste. If you are out of paste, just go buy more and don't remove your heatsink until you do.

If it gets hot, I'm definitely going to run and get some no matter what. What would be a high CPU temp? I know GPU's are 100 max.

ur6beersaway · May 8, 2013

ploxxies :

ur6beersaway :

I feel sarcasm in "Nice job!"

And air-bubbles from removing and re-applying will result in less contact meaning warmer temps (could be so little you don't see a difference, or it could be massive.) As a rule, if you remove the heatsink, ALWAYS apply fresh paste. If you are out of paste, just go buy more and don't remove your heatsink until you do.

If it gets hot, I'm definitely going to run and get some no matter what. What would be a high CPU temp? I know GPU's are 100 max.

It was a complement,sorry. Temp under load 45-50c /@idle 35c

ploxxies · May 8, 2013

ur6beersaway :

Haha, my bad! Idle's usually less than 35 and medium loads such as Minecraft run around 45.
I should be good, if not, I've read that the stock heatsink is garbage, so rather than reapplying thermal paste, I'll just get a new one if it comes to that! Thanks all.

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Reusing 20 minute old thermal paste?

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