I'm interested in powering a 360 with an ATX supply and was wondering if anyone here has done it or knows anything about the 360's power supply / setup that I should know before attempting it. The supply I'm going to use has two +12V rails at around 15A each. From my understanding, and from what I've concluded from continutity checks I've done on the 360's connector, the three 12V connections in the 360's connector are all common to each other. So, if I connect the two rails in parallel, I should have ample (pun intended ) current to run the system. I'm following this guide for details on setting up the soft power-on switch.
Does it allow you to turn the 360 on / off like you would with the original power supply? That's one of the reasons the person in the link I posted above had to make modifications.
Just make sure your wire gauge is correct for power transmission -- you need at least 16awg wires to safely transmit 17 amps over 1 wire -- if you're using smaller gauge wire put several in parallel to spread out the current draw. If your PS has 2 lines at rated 15A each, they may be 20AWG which would put you borderline for melting the wires -- if they're 18AWG, then you should be OK. Two 18AWG wires ~ one 16AWG Three 20AWG wires ~ one 16AWG
For the PSU I used it was a 500w P4 Power Supply. I used the 12v thats on the 20 pin connector and the 2-12v's that were on the 4pin connector. It powers my development unit just fine. None of the wires get hot even after 4 hours of usage.
this will take care of your problem http://www.talismoon.com/cgi-bin/multipage/engine.pl?function=viewid&id=RKS00024&cat=XBOX360-PARTS
Please no, Those things have a bad past of overheating and even catching fire. I say you should check before buying. A "ghetto" rigged PSU never even heated up because it grabbed the 12v from more than 1 line/rail.
1. You could run a devkit with a sidecar 2. Its better than the talismoon enegyzer because you can make it pull the 12v off more than 1 rail (which causes dangerous heat) 3. Because you can?
