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Testing Power Supply, -5V light does not turn on

R

Renegade23216

Senior member
I got a new high quality PSU tester... I was testing one of my old power supplies, all the lights on the 24-pin connector come on except for the -5V light. Does that mean the PSU is no good? It still seems to power on and the computer works fine. Please advise.
 
The -5 V rail was removed from the ATX spec. Unless you have some particular piece of (older) hardware that specifically requires the -5 V rail, this is completely fine.
 
Last board I remember needing a -5V rail was an MSI Socket 7 micro ATX board dated 2001. 😉
 
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