15v from a ATX PSU?

[Lithium]

Hey,

Slightly odd question but i need to get a 15V line thats capable of 3amps, and i instantly thought i could use an ATX psu. I've got like 10 lying about so i thought it might be worth it.

Any ideas on how i might wire it up? I think i need the +12 and -3 lines right? Anyone got some more specific insight.

 

[james.miller]

http://www.overclockers.com/tips808/

all the voltages you can obtain from an atx psu. there is no -3.3v rail. you'll have to use +3.3v and -12 to get 15.3v

do so at your own risk

 

[Trigger]

Don't bother- go to an electronics store and buy a 16V transformer, a resistor to knock it down to 15V, a fuse and fuse carriage, possibly a bridge rectifior (If you want DC, not AC) and some casing for it- will be much better. Should be pretty easy if you're 'ok' with electronics