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-   -   How much thermal compound? (http://www.hardwarecanucks.com/forum/overclocking-tweaking-benchmarking/16424-how-much-thermal-compound.html)

4DoorGTZ April 1, 2009 03:43 PM

How much thermal compound?
 
I've never really done much more then a cpu here a chipset there so the following build has me stumped on how much (IC7 maybe) thremal compound I need....

2x S771 CPU's
2x ATI 4870 512mb
3x chipsets
here's the kicker....
4x FB-Dimms, 20 chips on one side, 17 on the other (obviously each only requires a tiny dab)


If I buy 2 tubes, should that cover me?

gingerbee April 1, 2009 04:45 PM

just easier 30g tube mx-2 from ncix NCIX.com - Buy Arctic Cooling MX-2 Thermal Compound Paste NON-ELECTRICAL Conductive 30 Gram - MX-2T-30G In Canada.

4DoorGTZ April 1, 2009 07:23 PM

heh, you're right. and I can price match it to almost 1/2 off.

Realityshift April 1, 2009 07:27 PM

I dunno about doing that much but my 1 tube of antec formula 5 which I believe was 3g tube has lasted me through 5 CPU changes plus multiple heatsink reseats, 4 chipsets, and 3 video cards :p and theres still quite a bit left. Im guessing 30g is going to be PLENTY.

sswilson April 1, 2009 07:31 PM

What type of setup do you have that you're applying TIM to memory chips? I'm not sure I've ever seen a memory heatsink that would apply enough even pressure for me to trust it with anything but double sided heat tape.

4DoorGTZ April 1, 2009 08:43 PM

FB-Dimms, just like http://www.techshout.com/images/king...00-fb-dimm.jpg

These things run 80c without a fan right ontop of them, its in a Dual Xeon setup. Once those silver clips are removed the heatspreaders are still "stuck" to the physical chips with some odd thermal paste (poorly applied) The new heatspreaders are pure copper, depending on the clamping force I may/may not use thermal paste on the ram chips, dunno yet.

sswilson April 1, 2009 09:02 PM

I'd suggest just going with a roll of sekisui tape, although perhaps somebody who's had some experience with adhesive TIM might have a better idea.

My concern is that any of the aftermarket heat spreaders I've seen for memory don't apply the pressure evenly, and thus wouldn't work well with a standard non-adhesive TIM.

Eldonko April 2, 2009 08:57 AM

A fan would be much more effective.

gingerbee April 2, 2009 09:12 AM

for half where i only got it to 20 bucks

4DoorGTZ April 2, 2009 09:34 AM

Quote:

Originally Posted by Eldonko (Post 173259)
A fan would be much more effective.

Not compared to this.... 20c cooler at full load then with a fan (43c vs 65-70c)
Remember people, FB Dimms, very hot... not your run of the mill or even super duper DDR2


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