walker450

I have decided to add a heatsink to my southbridge on my mobo. I have been able to keep it at 62C with a room ambient of 25C. I will be using the guide by Paraleyes to add a chipset heatsink onto the existing heatsink.

I have read a little about thermal adhesives and I will attempt to make my own tomorrow. The plan is to mix JB Weld with MX2 in a 1:1 ratio. LOL I know this may sound wild but I just have to try it!!

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micah_jones

cool

NidStyles

JB weld has fiberglass in it. You might want to add something better than average TIM for thermal conductance.

JMT668

i did that once with a NB HS with super glue and OCZ Freeze

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DuckieHo

Epoxy + TIM.

JB Weld might be overkill? If you still want to use it, I would use a less concentrated ratio. A little bit will easily hold a heatsink.

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WarlordOne

3parts TIM and 1part Adhesive. Superglue or epoxy works fine. I would suggest you mix up a small batch first to see how long it takes to set. Otherwise go nuts.

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walker450

Thanks all for your advice!

All I have to use here at the house is some MX-2 and regular JB Weld (hardener and epoxy must me mixed).

So after reading Make Your Own Themal Epoxy, I decided to try it. That link is to the Belzona website. They make all sorts of fancy chemicals. We have used them for a few things at work and I was impressed with them so I trust what they have to say.

I mixed up a normal 1:1 Epoxy/Hardener batch of JB Weld, then added the same amount of MX-2 to the JB Weld... I then used it to bond two drive bay blanks from an old parts computer. I let them set for about a hour and they hardened up nicely. I didn't get too rough- due to the leverage provided by the way I put them together, I think I could pull them apart if I wanted to.

So for a test I heated one end of one of the pieces and used a temp gun to see if the heat traveled through the thermal adhesive mix onto the other piece... and it worked! I only heated the tip of one to about 340F: the other end of the same piece got to 120F, and the other piece got to 105F on its ends, and was around 150F in the center right where the adhesive was!

They say pictures are worth a thousand words... so here you go:







This was kind of a sloppy test, but it proved enough to me to try it on my heatsink. I probably could have used a thinner layer of thermal adhesive, and I could have sanded the parts smooth and clean. I didn't even wipe them off lol.

Once I get my SB heatsink on and tested, I'll post a link to the results here.

Thanks again!

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sconeboy92

I've got that temp gun

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