On 11/04/2012 11:25 AM, STYNX wrote:
The removal of the org. socket is not that hard. I used a Dremel-drill with
a cutting disc to carefully remove the plastic bridges of the socket
(don't touch the board in the process!). After that i could just install
the additional (cut in half) socket (sometimes i had to desolder the holes
in the middle of the socket). I did not bother to completely remove the
unused socket. The remaining socket residue :-) will not hinder you in the
following upgrade anyway. If the socket has to be completely removed there
is the possibility to damage the Board. The result of a easy socket
upgrade will not look as nice as a completely new socket but will do the
same job. I mainly used a unsolder-iron and unsolder-wick.
I'll probably do that for the data ram. For the tag ram, I used the tried and
true approach of crushing the plastic on the old socket with pliers and
pulling the pins one by one from the top. It's a PITA, but a better bet than
trying to pull the socket intact with a vacuum desoldering rig.
The board is quite a bit better with the UMC tag ram. It doesn't lock up at
all now. But after a few hours it will crash into the monitor when I try to
start a large application like Sprectrum, WPGS, etc. I'll try the Alliance
chips next and plan on modifying the data ram for .3" packages next week.