Reply 20 of 39, by FesterBlatz
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This is what I ended up doing and so far it's been working out fine.
I put a thin strip of Scotch double-sided tape around the parameter of the heatsink and a layer of thermal compound in the center. I've done this on 3 CPUs now using random chipset heatsinks and so far the Scotch tape holds fine. This particular CPU is an IBM 5x86c I rescued from a "gold recovery" eBay seller in horrible shape. After hours of pin straightening and 2 new pins, it's currently running at 120MHz 3.35v passively cooled with this heatsink installed-no problems at all. The heatsink must be running about 60c and hasn't budged...so the Scotch tape doesn't seem to be affected too much by the heat.
Yes, I know the EPROM erase window should be covered... I just programmed a different BIOS version yesterday and haven't had a chance to put a sicker over it yet.