I've run across several flaky motherboards lately and it turns out they all 
shared one common anomaly.  Bad Low-ESR capacitors!  The motherboards 
involved would generally be several years old making the a prime canidate 
for building a firewall.  See the link below for more info.

http://www.siliconchip.com.au/cms/A_30328/article.html

Roy...

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