First post, by phosgene
- Rank
- Newbie
Hello all,
I'm sorry if this question has been asked before; but how do you go about delivering -5V to an ATX motherboard that has ISA slots?
A little bit of background...
I have an Intel E139761 Slot 1 ATX motherboard, that I'm planning a new Pentium II build around. I would like to use a sound card in one of the the ISA slots, but here's my problem: The ISA specification has -5V on pin 5, but the -5V rail was removed in the ATX12V 1.3 revision in 2003, so there are no modern ATX power supplies that seem suitable.
I do have an old AT/ATX power supply, that has the -5V rail, but when I measured the outputs the 12V rail is not within the +/-5% spec (it measures too low).
So I'm not sure what to do, should I try and rejuvenate the old power supply, or is there another way of getting -5V with a modern PSU?
Cheers, and thanks for reading.