Should I re-apply AS5?

Lyon85 · 8 May 2007 at 00:36

When I was fitting my CPU, I didn't really know the correct way to apply thermal paste. I mean the method is sound, but I wasn't sure if it was perfect for C2D.

I placed a small blob in the center of the heat spreader, and smacked my Zalman on there. @ 1.4v on full load both cores get to like 65c. Having read this I'm thinking maybe I should re apply the paste as stated, I'm getting a new case soon so while I'm in there I could get it done. Is it worth it? It just means I've got to get hold of a cleaning product.

Cupra · 8 May 2007 at 02:55

no harm in giving it a go. if your doing a line that long make it as thick as uncooked rice

usaly i do a line half that length the samw witdth as boiled rice

w3bbo · 8 May 2007 at 07:24

The line method is best for conroe as it ensures that the core under the IHS has AS5 across its length. I can't see it making a massive difference unless you have a concave IHS but as paul says its worth a try.

Slinky1989 · 8 May 2007 at 11:27

I spread mine completely over the cpu with an old debit card I found lying around. I then reseated the hsf in a different direction.

Did the job perfectly and lowered my temps but over 20 degrees at load

used to be 70 degrees load, now 50 and that's at 3.4gig.

Shiz · 8 May 2007 at 13:04

Just get some Jetart 4800. Bout the same performance as AS5 but its instant conductivity, not more waiting for 200 hours

.

But yea I agree with the spreading idea. Much better than just placing a blob and pressing it down .

Cob · 8 May 2007 at 13:23

I used the line method with my e6600 but found that it wasted quite a lot of paste. It's hard to determine the correct amount.

For my Quad I just spread it out with a credit card.

WJA96 · 8 May 2007 at 15:37

Spreading it out with a credit card is fine if you have a flat IHS. If you don't then you're basically far better with the line between the cores method.

Proc · 8 May 2007 at 18:09

I spread it out first time around and was getting idle temps of 45-50°C, and 55-60°C under load with a tuniq. I re-applied the as5 in the line method and reseated the cooler, now my idle temps are around 34-37°C and 45-50°C under load.

I'm more than happy now, guess the ihs on my 6600 is quite concave.

Cupra · 8 May 2007 at 19:16

thats why i do the line as you end up with the end effect anyway... and if its concave your fine aswell. also easier to do

Jack Bauer · 11 May 2007 at 14:12

Another vote for this method. Try it last night after reading this. Knocked about 10C off my concave c2d. It was really my last option before lapping.