First post, by SpectriaForce
- Rank
- Oldbie
Older power supplies (let's say > 15 years) usually have a -5V output, but what for hardware need -5V ?
I've searched in my pretty extensive classic pc documentation but couldn't find an answer. Is it true that it is used for ISA cards or only for specific cards?
I've noticed that my Asus P3B-F (with one ISA slot) monitors the voltages, with a modern power supply without -5V it gives an error at POST, luckily you can disable the -5V monitor separately. Haven't tested it with an ISA card. I've also tested a MSI K7T266 pro2, which also monitors -5V but it does not have ISA slots. Hence, I'm confused..