AT Power supply

[daveg4otu]

In the search for cooler CPU temps ( nothing extreme) I have installed extra fans in my case - not wishing to put to much extra load on my PSU, at the moment these extras are running of a small 240/12V mains converter such as used for running portable radio/tape decks/ walkmans etc.

I have 3 old AT PSUs here and I thought it might be much better to use one of these.All I want to know is - how can I make one of these run without anything attached - IE : which wires do you connect within the AT plug? ( just like connecting the green and black on an ATX)

MTIA


Dave

KT6V-LSR/XP3000/768MB DDRAM
Ti4200/128MB

[bigben2k]

The old AT PSUs have a switch to turn them on, and it's connected to mains.

Your best bet would be to have your ATX PSU drive a relay to turn on the AT PSU. Just make sure you select the proper relay.

[daveg4otu]

Originally Posted by bigben2k

The old AT PSUs have a switch to turn them on, and it's connected to mains.

Your best bet would be to have your ATX PSU drive a relay to turn on the AT PSU. Just make sure you select the proper relay.

Thanks - yes I realised after taking a close look at the AT PSU that it was switched using the mains voltage. In the interests of safety I abandoned that one and instead am using an elderly 230W ATX with the green/black shorted( temporary - I'll get a switch to put in line ASAP)- all working nicely.


Dave