Power Supply: No -5V wire

[snorkel]

I just bought a generic ATX power supply (an el-cheapo) for a friend's E-machine PC. It doesn't have a -5V wire on the 20 pin ATX motherboard connector.

Is that ok?? All my other power supplies have had 20 pins with 20 wires on the 20 pin connector, but this one has only 19. A power supply tester shows that it is missing the -5V wire.

I tried to Google this, but didn't get anywhere with "-5V" wire.

 

[edfair]

Yeah. -5 hasn't been needed for several years. Think it was required for the set of BIOS chips used on the original PC, but it has been a long time so the memory may be bad.

Ed Fair
Give the wrong symptoms, get the wrong solutions.