Question about the -5 volt rail

Spenzer4Hire

Distinguished
Apr 11, 2006
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18,510
Is the -5 volt rail ever used? It comes up dead on my 24 pin power supply tester. My friend's asus sli-premium board died on him. Before I go plugging his new board into his supply, I just want to make sure his supply didn't fry that board in the first place.