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CPU Lap .... Q?

post #1 of 3
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Kay so after the Lap, and 3 spplications of AS5 later, i am confused. Temps spike to 45 sometimes idle, and it has higher temps than before. Re-applied AS5 3 times now and both times when i dismounted the HS from CPU, the AS5 was not to be found in the middle where i put it, but on the very edges and spilled out. I had to clean whole CPU both times. Question: is it possible the finish is SO smooth and SO flat that the AS5 simply isn't going to stay inbetween the two components? thats really how it looks. The last two times i used a LOT less than the normal recommended amount. It just....squeezes out.

Could a few strategically placed directional sandpaper scores help to keep the AS5 in the middle so the core comes down in temp? Even with the smoothest and flattest it seems you need SOME thermal paste, even at a molecular level, to fill the pores we can't see. So even assuming that my FIRST lap job turned out a little too perfect and is kickin back all the paste, ya think i should just scuff it up a lil bit so the paste stays put?
Kama Killer
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Kama Killer
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Western Digital 120GB Phillips DVD/CD-RW Windows XP Home SP2 Viewsonic 19" Flatscreen CRT 
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Silverstone 500W Xion 
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post #2 of 3
How are you applying the paste? Just putting a drop in the center and then putting your heatsink on? Is it squeezing out past the side of the cpu and still covering the cpu? If so then thats too much. I recommend placing pin sized drop in the center and spreading it out smooth with a old credit card or something similar. Here is a Video Tutorial that will help you along. Good luck.
post #3 of 3
If you're putting it in the center and it's squeezing out the sides, you're eaither putting too much on or pressing down too hard. I don't see how it's possible for you to put AS5 in the middle, and have the pressure squeeze it out to the sides and completely vanish in the center, unless you had a convex heatsink, and even so there should still be a little bit left. Keep in mind when you separate the CPU from the HSF and look at the AS5 left over, it tends to stick more to either the CPU or the HSF, so there might be what look like holes in the coverage when in reality it's just stuck to the other part you're not looking at.
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White Whale
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Saitek Eclipse (Blue LED) 660W Seasonic Platinum SS-660XP Corsair 600T (white) OCZ Equalizer 
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