bicit
Well-Known Member
A second pad would do nothing but harm cooling performance in this instance. Since you're doubling the thickness of the TIM, and you have the added thermal resistance of the pad. Tj is going to be higher than if it were just mounted on the tube.Pro:
- easier to drill thru with no bottom stop.
- no need to change to a bottoming tap.
- clamp 2 (or 4) together and drill them all at once.
- easier to toss it, if mistake was made
- acts a thick buffer to keep the heat flow toward the water
Con:
- more work
- need to bond it with thermal glue
- might not be necessary, or desireable
It's risky, but you could always tap a through hole and put some teflon tape on the mounting screws.