XBOX 360 Power Supply, last connections? I'm using an XBOX 360 power supply, the variant with 302 watts and it works well with the current hookup. However, there are 2 unused wires which I don't know the purpose. Anyone knows? So there are a total of 10 wires: 3 Black - Ground 3 Yellow - +12v 2 Red/Blue - +5/Enable 1 Yellow, 1 Black very fine thickness wires, purpose unknown. When enabled, there is again +12V between these two but I'm not sure it's intended to be load carrying. Un-enabled, there is approx 10ohms between the thin yellow and the three thicker yellow wires. I thought it might be some sort of temperature sense, but haven't found anything online covering it. The one instructable which mentions these two just recommends merging them with the other yellow/blacks respectively. If you know, pls let me know, Thanks! https://reprap.org/forum/read.php?13,178071,178071#msg-178071 Fri, 17 Apr 2026 08:02:42 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?13,178071,741817#msg-741817 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,741817#msg-741817 Thin black and yellow is kind of voltage regulation. I know, it's not answer "why?" but enough for this moment.
Maybe sth with reverse current. Maybe it would be better to use this regulation. :S Doesn't matter.]]> rafalvonkrakow Controllers Tue, 24 Jan 2017 13:28:22 -0500 https://reprap.org/forum/read.php?13,178071,741430#msg-741430 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,741430#msg-741430 All yellow wires connected together (thick and thin one), same blacks, switch on red 5V and blue. Additionally I connected small 10W, 12V halogen bulb to 5V red and one black wires. (as described for ATX power supply)
Everything work great as long as this bulb is connected. If not it works till first MOSFET switch off, when PID starts working after heating bed to desired temperature. I could see short blink on Xbox LED from green to orange and green again and it resets Arduino.

Any idea ?
I replaced MOSFET to IRLB3034PbF but with STB55NF06 I had the same issue.]]> rafalvonkrakow Controllers Mon, 23 Jan 2017 07:46:15 -0500 https://reprap.org/forum/read.php?13,178071,206603#msg-206603 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,206603#msg-206603 chris33 Controllers Wed, 08 May 2013 12:27:01 -0400 https://reprap.org/forum/read.php?13,178071,201723#msg-201723 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201723#msg-201723 REPRAP SQUAD Controllers Sun, 21 Apr 2013 23:17:39 -0400 https://reprap.org/forum/read.php?13,178071,201721#msg-201721 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201721#msg-201721
Thanks for the kind comments. I've been meaning to add more the build thread on the printrbottalk forum too, but haven't gotten around to it yet.

I've still got an X-box motherboard with a female power supply connector on it I'd be happy to send to you if you can use it. Just let me know where to send it.]]> ei8htohms Controllers Sun, 21 Apr 2013 23:09:52 -0400 https://reprap.org/forum/read.php?13,178071,201716#msg-201716 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201716#msg-201716 REPRAP SQUAD Controllers Sun, 21 Apr 2013 22:41:16 -0400 https://reprap.org/forum/read.php?13,178071,201713#msg-201713 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201713#msg-201713 REPRAP SQUAD Controllers Sun, 21 Apr 2013 22:27:07 -0400 https://reprap.org/forum/read.php?13,178071,201700#msg-201700 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201700#msg-201700
I've written up a little about how I handled it (with your help!) here:

http://ei8htohms.tinyparts.net/?p=546]]> ei8htohms Controllers Sun, 21 Apr 2013 20:25:09 -0400 https://reprap.org/forum/read.php?13,178071,201210#msg-201210 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201210#msg-201210 REPRAP SQUAD Controllers Fri, 19 Apr 2013 14:20:05 -0400 https://reprap.org/forum/read.php?13,178071,201209#msg-201209 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201209#msg-201209 REPRAP SQUAD Controllers Fri, 19 Apr 2013 14:17:38 -0400 https://reprap.org/forum/read.php?13,178071,201185#msg-201185 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,201185#msg-201185 ei8htohms Controllers Fri, 19 Apr 2013 12:51:30 -0400 https://reprap.org/forum/read.php?13,178071,200765#msg-200765 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,200765#msg-200765 REPRAP SQUAD Controllers Wed, 17 Apr 2013 21:09:07 -0400 https://reprap.org/forum/read.php?13,178071,200748#msg-200748 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,200748#msg-200748
Since the GO is all about portability, I'm hoping to use the X-box PSU to power the whole shebang (including heated bed). The laptop-esque PSU (must put out 6 A?) it came with is actually sufficient (barely one imagines) to run the bot with the heated bed even although I've only risked PLA temps thus far (190 and 60, and the transformer gets pretty warn even then). Fingers crossed that203 Watts will be sufficient for ABS.

Thanks again for your help!]]> ei8htohms Controllers Wed, 17 Apr 2013 19:22:11 -0400 https://reprap.org/forum/read.php?13,178071,200718#msg-200718 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,200718#msg-200718 REPRAP SQUAD Controllers Wed, 17 Apr 2013 17:37:24 -0400 https://reprap.org/forum/read.php?13,178071,200712#msg-200712 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,200712#msg-200712
Quote
REPRAP SQUAD
The yellow wire reads at about 12.3 v @ 16.5 amps and the 5v @1 amp which works well with my Printrbot.

in combination with (from the write-up about the X-box PSU):

"4. Strip a small amount of the red and blue wires and connect them to each other (optionally solder). This will prevent the power supply from staying in stand-by mode after you give it power."

This would seem to indicate that these were not used (just connected to each other to insure power flow), and one of these IS the 5V lead, no?

Sporry if I'm being dense, I'm just not able to follow how the voltage or the amperage on the alternative (5V) lead is even relevant if it's not being used.

Thanks!]]> ei8htohms Controllers Wed, 17 Apr 2013 17:16:39 -0400 https://reprap.org/forum/read.php?13,178071,200473#msg-200473 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,200473#msg-200473 REPRAP SQUAD Controllers Tue, 16 Apr 2013 23:57:27 -0400 https://reprap.org/forum/read.php?13,178071,200458#msg-200458 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,200458#msg-200458
I'm working on wiring an OG X-box 360 PSU for use with my printrbot GO and am not 100% sure what to do with the +5VSB and Power Enable leads. One article I found said you could just twist these together or wire them with a switch for standby, which sounds like what you did. But when you say the 5V supplies 1A, what do you mean? Does it supply a low current when on standby? If so, what is it powering? You'll have to forgive my noob questions, I'm electrically challenged one might say. :)

_john

ei8htohms.tinyparts.net]]> ei8htohms Controllers Tue, 16 Apr 2013 20:45:27 -0400 https://reprap.org/forum/read.php?13,178071,194297#msg-194297 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,194297#msg-194297 REPRAP SQUAD Controllers Sat, 23 Mar 2013 14:28:06 -0400 https://reprap.org/forum/read.php?13,178071,186342#msg-186342 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,186342#msg-186342 REPRAP SQUAD Controllers Wed, 20 Feb 2013 19:59:42 -0500 https://reprap.org/forum/read.php?13,178071,178364#msg-178364 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,178364#msg-178364 braddo99 Controllers Mon, 21 Jan 2013 19:50:06 -0500 https://reprap.org/forum/read.php?13,178071,178316#msg-178316 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,178316#msg-178316
The red wire is +5V standby, and the blue is power on/enable.]]> bobc Controllers Mon, 21 Jan 2013 15:33:23 -0500 https://reprap.org/forum/read.php?13,178071,178213#msg-178213 Re: XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,178213#msg-178213 james glanville Controllers Mon, 21 Jan 2013 09:07:23 -0500 https://reprap.org/forum/read.php?13,178071,178071#msg-178071 XBOX 360 Power Supply, last connections? https://reprap.org/forum/read.php?13,178071,178071#msg-178071
So there are a total of 10 wires:

3 Black - Ground
3 Yellow - +12v
2 Red/Blue - +5/Enable
1 Yellow, 1 Black very fine thickness wires, purpose unknown.

When enabled, there is again +12V between these two but I'm not sure it's intended to be load carrying. Un-enabled, there is approx 10ohms between the thin yellow and the three thicker yellow wires. I thought it might be some sort of temperature sense, but haven't found anything online covering it. The one instructable which mentions these two just recommends merging them with the other yellow/blacks respectively.

If you know, pls let me know,

Thanks!]]> braddo99 Controllers Sun, 20 Jan 2013 21:16:57 -0500