Old school FTW. Make sure you shop for a replacement cooling solution
for that chipset fan :-) It's got the old SLI paddleboard. No
bifurcation ICs. Board intro around beginning of the year 2006.
It's got electrolytic caps and no polymer caps that I can see.
http://images10.newegg.com/NeweggImage/productimage/13-186-059-01.jpg
If the chipset cooler ever needs to be replaced, see
if this one will fit in its place. They don't make these
any more as far as I know, so you might have to look around
to find one. There are two ways you can rotate this, and
the question is, whether it stays clear of the video card
or not.
"Thermalright HR-05 SLI/IFX"
http://bigbruin.com/2007/hr05ifxsli_1
*******
Your old PC was killed by the USB header mistake. Not
by grounding. The reason for fixing the grounding issue,
is to avoid hum issues with the stereo, and slight shock
hazard to you.
Paul