OT: Removing Electrolytic cap residue

Jules Richardson julesrichardsonuk at yahoo.co.uk
Tue Apr 5 06:32:16 CDT 2005

On Tue, 2005-04-05 at 00:58 -0700, Eric Smith wrote:
> Adrian wrote:
> > A friend of mine has a problem with Electrolytic caps on his motherboard
> > having gone "pop" & deposited their contents on some contacts...
> [...]
> > Does anyone know how best to remove dried capacitor electrolyte from a
> > surface?
> I don't know, but my solution to this has been to replace the affected
> motherboards.

If the motherboard is "valuable" in some way (containing the right slot
layout for the user, or having a decent BIOS, or onboard SCSI or
something) then one option might just be to replace the damaged PCI

I've never tried this, but it can't be much harder than snipping a dead
IC from a board, cleaning everything up, and replacing. Either buy a new
PCI socket from a component place, or try removing one from a dead
motherboard. I've never tried the latter (only with ISA sockets) - but a
blowtorch on the underside of the donor board might do the trick without
damaging the PCI slot....

> I'll note that I have never seen this problem with any of my Asus or
> Tyan motherboards

FWIW I've seen it on a couple of dual-CPU Asus boards before now (but
have seen other Asus boards from the same era that have been fine).



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