How to: Power a 360 with a PC PSU (56K Warning)

Things you need:

Xbox 360
PC power supply
wires
dead 360 power brick(optional)
soldering gun(optional)

WARNING: I am not responsible for the damage caused due to the attempt to do this mod. DO NOT ATTEMPT IF YOU DON'T EVEN KNOW HOW BASIC ELECTRICITY WORKS.


First, the 360 power brick outputs 203w, 175w for the Foxconn Elite models. It does 16.5A on the 12v rail, aka 198w, 5w for 5v. The PSU I used is 144W on 12v, it works, I played Halo 3 on it for 4 hours without a problem, but I would still recommend a PSU that does more than 16.5A on 12v rail.

To start off, there's two way to accomplish this mod. One require 360, PSU, and wires only, the other one requires all the stuff listed above. The one that requires less materials is easier obviously, the other one is more difficult(soldering involved).

1. Get 360, PSU, wires, I got these from a dead PSU, 3 yellow(12v), 3 black(ground), 1 red(5v)


Standard ATX PSU


Xbox 360 and Duct Tape 360




2. Here is the outline of the 360's power socket, 1-3 is ground(black), 4-6 is 12v(yellow), 7 is reference(not required), 8 is 5v(red)


Optional:Here is the backside of the 360 mobo's power socket, the numbers are the same. If you like soldering, or want it to be permanent, safer, some crap, you can do it this way.




3. Plug the wires into the 4-pin molex connectors of a PSU, match the colors so it would be easier to identify. Any connector on the PSU is fine.



Also, to make the PSU to be on standby, you need to get another wire/paper clip to make pin 14(green) and any one of the ground pin on the 20pin connector contact. i.e.




4. Get all the wires and make them flat with a clamp, wrench, etc. and fold the wiring back, example in picture. Make sure the the plastic part is flat so it can fit in the 360 power socket




5. Stick the wires inside the 360 power socket, 12v on middle row, ground at bottom, 5v on top left corner.

That's how it look like after sticking the wire in the socket.


Remember, the 5v is on the top corner, pay close attention the the picture below. As you can see, there's a tiny rectangular hole at the 5v area, #8, stick the red wire inside the rectangle.


Here's how it looks when it's done.


Optional: If you don't want to stick a wire inside the socket, you can get a dead 360 power brick's power connector, cut it away from the power brick, match the colors inside the connector, it's same color, yellow for 12v, black for ground, etc. Then twist the wires together and it should work the same.


6. Here it is when it's done.




An old picture



Video if it in action