Comments on: Xbox 360 ATX PSU

By: jbyrns1993

jbyrns1993 — Wed, 16 Nov 2011 19:05:53 +0000

I think the best way to hook up 5v and 12v and GND is to use one cable from the ATX PSU for each cable in the XBOX cable, that way there’s not too much current on any cable, so that way your cables won’t melt, like one commenter had. Its the sheer amount of power that an XBOX requires that melts cables. if you use flimsy cable for 16+ amps (more than your household outlets) you WILL melt cables.

By: Justin

Justin — Sat, 08 Jan 2011 01:07:52 +0000

I just completed this mod and it works nicely. Yes a transistor connected to the black, green and blue leads will work to turn the Xbox360 off and on. The reason you cannot connect the blue wire directly to the green wire is because the power supply expects the gree wire to be at zero volts to turn the power supply on and the Xbox360 power supply requires 3.3 volts on the blue wire to turn the power supply on. When connecting the wires to the computer power supply connect each yellow wire to a separate yellow wire on the power supply cable. The same applies for the black wires. That can be easily done if you have a newer power supply with an 8 pin 12 volt connector and will also give you an extra 12 volt wire and ground for running fans or in my case the water cooling system.

By: Xypher Orion

Xypher Orion — Thu, 04 Nov 2010 15:54:25 +0000

I’ve performed this mod on a little more raw level from a different tut. I don’t think this one was posted yet, ended up soldering directly to the board, wasn’t aware of which wires went where for the PWR_ENABLE (Blue) and +5VSB (red) connections from the power connector, just bridged green/black on the psu. Mine’s a 1st gen Elite, worked great for about 6 months and started overheating on me.

Match Red (360) to Purple (ATX PSU) and
Match Blue (360) to Green (ATX PSU) to use PWR_ENABLE, which just means the ATX PSU turns on when you hit the 360 power button.

Just accomplished the mod here for a friend using a cable from a bad elite PSU hooked up to a 300W ATX…and a power connector ripped (literally) off a bad motherboard. Everything seems to work, but the 360 (1st gen Arcade) still throws a 0001

ATX PSU:
Delta Electronics DPS-300PB
300W
+12V / 15A
-12V 0.8A
+5V / 30A
+5VSB / 2A

By: Josh

Josh — Tue, 20 Jan 2009 06:53:41 +0000

All i can say… Is this works wonderfully….. My friend gave me his old X-box 360 that had the infamous “Red ring of death” I ended up replacing the old Thermal compound because i wasn’t sure if it was that or the PSU…. Turned out to be the PSU…. Had an old 500W power supply from my old computer. Hacked away at some wires, spliced a few together, Plugged it in… Turns out he still has a few months on his Xbox Live account :) Been playing Halo3 for a few hours now… No signs of overheating/etc..

By: Antonio Carvalho

Antonio Carvalho — Thu, 29 May 2008 14:28:56 +0000

Hi, when I search for “xbox 360 atx psu transistor” in google, this site is the first match, but when I click the link, google redirects me to “http://your-needs.info/search/index.php?q=xbox+360+atx+psu+transistor”
please take a look to see if your great blog is not being scammed by this crappy google-like site.

By: rich m

rich m — Mon, 14 Apr 2008 05:15:00 +0000

hey yildirim,

yea, u can bridge the green atx wire with any black atx wire.

heres the only things i can think of that went wrong:

- u melted part(s) of the wire(s) from soldering. u actually dont even need to solder the green and black. just twist them together and cover with electric tape. they won’t get that hot.

- u accidentally cut one or more of the wires that shoudn’t be cut

- u accidentally touched the hot iron tip against one of the components/circuit boards/etc inside the psu

hope this helps and hope its an easy fix

later
= )

By: yildirim

yildirim — Sun, 30 Mar 2008 22:08:28 +0000

Hey.

First time i got it working, then i wanted to make it nice and cut all the other cables and wanted to solder from the inside, as liranuna has done shown in picture.. But doesnt work now..

Questions:
1. Can i solder the green one with any black one, or does it have to be that black one from pin 15?
2. Do you have any pictures of how it looks from the inside of the PSU?
3. Was it ok that i cut all other cables?

Let me know what i have done wrong..

By: dec 26 poster

dec 26 poster — Fri, 25 Jan 2008 09:03:10 +0000

caviar >> the 360 requires 16.5A @ 12v, so im not sure if thatll work

ramy >> the atx psu still works great.. never heats up

By: CaviaR

CaviaR — Sun, 20 Jan 2008 19:09:00 +0000

Hi! If I’ve got an ATX with 12V@15A, will it work? Thank you!

By: Dogs

Dogs — Sun, 20 Jan 2008 11:16:25 +0000

You can make the power supply turn on with the xbox360 as follows. The blue wire from the xbox goes to +5VDC when the power button is pressed. To make it activate the power supply you have to connect it via a 10K resistor to the base of an BC548 NPN transistor. The collector is connected to the green wire to the power supply and the emitter is connected to ground. I have done this on mine and it works perfectly.