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Do I have to reapply Arctic Silver 5 after reseating the heatsink?

post #1 of 9
Thread Starter 
I just finished building my PC, but in the process, I had to reseat my CoolIt Eco A.L.C.'s CPU cooling block once because the cord couldn't reach the header. What I did was first I applied AS5 onto the processor (1 small pea size in the middle), put the cooling block on, then reseated it, and saw that the paste spread out quite good. But I just made sure and I added another small pea sized AS5 on the processor, and reseated it, not bothering to clean up the last try. My idle temps are 24C and load is 46C. Is that good since the Arctic Silver 5 hasn't cured yet? Or could it be that I might have applied too much paste? Should I have wiped off the first lining of paste before reapplying the new one?
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Semper Fidelis
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post #2 of 9
just monitor the temps the 1st week.

If they arent unusual just leave it be like this. As far as i can see your temps are pretty good imo
    
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post #3 of 9
Definitely too much paste. You should always clean off your last application. Try to use at least 90% alcohol but 70% will do the job fine.
    
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post #4 of 9
Hello.

A new application of TIM is recommended with each re-seat of the heatsink.

Additionally, only one of the two surfaces needs to receive the application as too much TIM is counter productive to the thermal transfer.
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post #5 of 9
Quote:
Originally Posted by Syrillian View Post
Hello.

A new application of TIM is recommended with each re-seat of the heatsink.

Additionally, only one of the two surfaces needs to receive the application as too much TIM is counter productive to the thermal transfer.
Bingo! When you remove a heatsink from the CPU, air pockets will form in the TIM which trap in heat, so always reapply TIM.

Second, you use TIM to fill in imperfections in the mating surfaces of the metal to help transfer heat from the CPU's IHS (integrated heat Spreader) to the heatsink. But too much TIM acts as an insulator trapping in heat.

In summary, Always reapply tim when reseating the heatsink and only use a grain of rice sized amount of TIM.
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post #6 of 9
Thread Starter 
Mmk. So tomorrow I'll clean off paste and reseat and reapply. Should I remove processor and clean it off with 70% isoplypl alcohol?
Semper Fidelis
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Semper Fidelis
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post #7 of 9
Quote:
Originally Posted by AMDZ View Post
Mmk. So tomorrow I'll clean off paste and reseat and reapply. Should I remove processor and clean it off with 70% isoplypl alcohol?
Just carefully wipe off the excess TIM with a clean dry cloth, then use a Q-tip dipped in alcohol to clean the top of the CPU's IHS. You shouldn't need to remove the CPU from the socket.
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My System
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OS: Crucial M500 Seagate HDD Samsung F3 H100i 
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post #8 of 9
Thread Starter 
Well I removed the CPU from the socket and I'm still here xD. Thank God. OK better temperatures now, 21C Idle and 32 Load. Sound any better?
Semper Fidelis
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Semper Fidelis
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post #9 of 9
Those are some awesome temps.
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