Reply 48240 of 53198, by acl
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cyclone3d wrote on 2023-02-27, 19:07:It would probably be a lot easier to get consistent results thickness-wise if using a high resolution resin printer. […]
BitWrangler wrote on 2023-02-27, 14:56:As someone who has messed around with rubber stick on feet and various other types of stick on foam for replacement bumpers... it's surprising how much force is required to compress even what seems to be low density stuff, when you have an area of more than about a square centimeter and apply the force with a flat surface.... i.e. stuff you can dent right down real easy with your thumbnail, may leave the heatsink hovering 0.2mm off your processor when the clamp is fully tensioned.
I would advise printing 0.1mm below the core for the bulk of the shim and just having a narrow ridge around sticking above it to compress.
It would probably be a lot easier to get consistent results thickness-wise if using a high resolution resin printer.
And with printed shims, you wouldn't have to worry about shorting anything out.
There are multiple versions of the metal shims as the bridges at least were in different locations on different models of the athlon CPUs
I never tried to mod Athlon/Duron by altering the bridges, but i though the small contact points were protected by being a little under the surface, and covered with some coating.
Some sources about the famous "pencil trick" described some procedures to allow good contacts when closing a bridge. Generally by scraping the surface (more or less, not sure how to describe that). At least, this was not described as easy as bridging two soldering pads on a PCB.
Not sure that a metal shim would make contact and interact with the CPU.
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