Repairing A4000 leaky NiCd damage?

Charles charles at
Fri Jan 2 03:06:48 CST 2015

well change all the Elertrolytics first. They are all toast.

clean it up really good, and try it. it might still work anyways.


make sure to change the caps on the cpu card as well.
I re-cap many of these for people.


On Jan 2, 2015, at 1:23 AM, Ethan Dicks <ethan.dicks at> wrote:

> Happy New Year, all!
> Has anyone here gone through the process of reparing leaky NiCd damage
> to an A4000 motherboard?  I _thought_ I had removed the battery some
> time ago but puttering around today, I cracked open the case to find
> the battery still there and some damage around U891 (a 74F245) and
> U850 (Bank 3 DIMM socket).  I have washed off the residue but I may
> have to pull a DIMM socket to get access to the vias under it.
> I know the general process, but I'm curious if anyone has done this
> specifically to an A4000 board and has any tips.  As I said, I'm
> probably going to have to pull the DIMM socket to get to all the
> damage.
> Barring success from running a dozen or so repair wires, would anyone
> happen to have a lead on an A4000 motherboard?  Everything else in the
> machine should be good, the Daughter Card, the CPU card, etc...
> It's my only A4000, so I'd like to get it back up and running, or
> replace it if necessary.
> Thanks for any tips,
> -ethan

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