
Originally Posted by
CMaster
The link there tell you how to find the mobo model number. If yours matches any on the ECS site, you should be able to grab that one.
And yes, you are probably going to want to put on some new paste. As said, it's cheap enough. Basically, you need really good thermal conductivity between heatsink and processor, for obvious reasons. In the real world however, these surfaces have a fair amount of roughness and may not sit perfectly flat. So a small amount of highly-thermally conducitve paste bridges any gaps that there might be. Most heat sinks when new have a block of pre-preared goop on, but that never comes apart neatly enough to reuse really, so you're best off wiping it off and replacing.