Originally Posted by Rangerscott
I know it works cause when I first got his card I hardly grab the heatsink and it would move 1/8" or more in any direction. I can now grab the card by the heatsink, shake it and nothing moves.
This took away space. The heatsink "pegs" where the screws go into would touch the pcb board, but the screws only went in so far. So either the pegs weren't tapped far enough or the screws are too long.
I haven't done the shake test on my unlocked one. LOL
So what you're saying is that you don't really know which of the two possibilities is actually the case then. Because all that the 'shake test' in and of itself tells you is that either the screws were too long OR there was not enough screwhead in contact with the back of the board to hold the heatsink firmly.
If the former is true, you may have increased the contact between heatsink and chip by adding the washers, and if the latter is true, then all you did was increase the surface area of screwhead in contact w/the back of the board. Which is still good, don't get me wrong, but not quite as useful
If there was no space between the 'pegs' (or screw housings, if you will) and the board, I have to assume that all the washers really accomplish is helping to hold the heatsink firmly, rather than increasing the pressure.
I think to actually get more pressure, the tips of the pegs (or the back of the bracket that the pegs are a part of) would have to be filed down slightly.Edited by brettjv - 9/10/10 at 10:09pm