Motherboardectomy: how to un-bond the CPU's heatsink?

[Matt Minuti]

Apply low, gentle heat? The viscosity of most thermal paste/pads changes a
lot with temperature. I'd take a hairdryer on low and heat up the heatsink,
slowly, occasionally attempting to twist the cpu off by spinning it about
the axis perpendicular to the base of the heatsink. Right-hand rule of chip
removal, I guess?



On Thu, Jul 7, 2016 at 10:03 PM, Joshua Judson Rosen <rozzin at hackerposse.com
> wrote:

> Bought a nice CPU a while back, with a cheap motherboard to put it onto
> until I found something better (in retrospect, that was probably silly...).
>
> Finally found a better motherboard, and am now reminde that
> (a) now I need to get the heatsink off of the CPU in order
> to transfer the CPU between the ZIF sockets (since the socket lever
> is covered by the heatsink), and (b) baked thermal paste is
> a remarkably good adhesive.
>
> Somewhat surprisingly..., the CPU is out of the original socket
> at this point--it popped out while I was fiddling with the heatsink.
> I'm going on the assumption that nothing got broken in the process,
> for the time being....
>
> Any suggestions on what the right course of action is, here?
>
> Wikihow advises to soak the CPU+heatsink assembly in isopropanol
> and then slicing them apart with dental floss.....
>
>
> --
> "Don't be afraid to ask (λf.((λx.xx) (λr.f(rr))))."
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