Light DIY on my 1240 accelerator

[Damion]

Personally I would use a dab of good thermal compound in the center, then a small amount of thermal glue in two (or more) of the corners. Add a small weight (like a paperback) on the heatsink while the glue dries.

[Damion]

Would this do the trick?:

http://www.cclonline.com/product-info.asp?product_id=15295&tid=gsearch

Generally compound will perform better, but a thermal pad is no prob whatsoever, especially for an '040.

[Damion]

A friend of mine did just that to a gforce 2 card... it died very fast...
the glue used expands when hardening. (it was arctic silver, the best)
It is recommended using only thermal glue.

I also use Artic Silver (ceramique and alumina adhesive), and have had *excellent* results. I think the trick is to use very little glue, and apply a little weight while it dries... YMMV.

If the heat sink is to be removed... make a clip...

Yeah, some kind of mechanical fastening is always best.