• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

xbox psu compatible with pc?

D

Desdichado

Limp Gawd
Joined
Apr 22, 2006
Messages
331
For about the last six months, I have been slowly collecting spare parts with the intent of building a machine inside an old xbox case I have. My biggest issue has been finding a way to power the machine. The xbox has one of the old version 1.0-1.2 power supplies with the pins all in a line. From what i've read, it is possible to convert this to work with the 1.2-1.6 versions, which use a standard ATX motherboard connector. However this will result in several empty pin-holes.

My question is, are those pins necessary to run a computer off the power supply? The only gaming we ever do around here is the "good old games" like Half-Life, Quake 3, and MOHAA, so the power draw is not going to exceed whatever this thing puts out. But does an atx motherboard require those pins, or can I just rearrange the pins from the xbox supply and plug it in?

Thanks
 
When comparing the two there is no - voltage rails in the Xbox PSU.......You may need to consider that as well depending on motherboard choices.

20pin ATX

1 3.3V Orange +3.3 VDC
2 3.3V Orange +3.3 VDC
3 COM Black Ground
4 5V Red +5 VDC
5 COM Black Ground
6 5V Red +5 VDC
7 COM Black Ground
8 PWR_OK Gray Power Ok
9 5VSB Purple +5 VDC
10 12V Yellow +12 VDC
11 3.3V Orange +3.3 VDC
12 -12V Blue -12 VDC
13 COM Black Ground
14 /PS_ON Green Power Supply On
15 COM Black Ground
16 COM Black Ground
17 COM Black Ground
18 -5V White -5 VDC
19 5V Red +5 VDC
20 5V Red +5 VDC

ATX P4/AUX
1 COM Black Ground
2 COM Black Ground
3 +12VDC Yellow +12 VDC
4 +12VDC Yellow +12 VDC


XBOX 12pin
1 +12V Yellow
2 +5V Red
3 +5V Red
4 +5V Red
5 +3.3V Orange
6 +3.3V STBY Brown
7,8,9,10 GND Black
11 Power on White
12 Power OK Blue


XBOX 20 Pin

1 +5V Red
2 +5V Red
3 +5V Red
5 GND Black
7 +3.3V Orange
9 GND Black
10 Power OK Blue
11 +12V Yellow
13 +5V Red
14 GND Black
15 +3.3V STBY Brown
16 GND Black
18 +3.3V Orange
19 GND Black
20 Power on White
 
Just looking at the pin distributions, I would be inclined not to try it. There are few +12V pins (2), many +5V pins (7), many +3.3V pins (3 and 2 standby). That indicates to me that there's less 12V current being produced and consumed by the xbox. Thus, I'd tend not to try to use that power supply with even a reasonably modern machine that draws most things off the +12V rail.

Something like the picoPSU might be a better choice. Here's a review.
 
You must log in or register to reply here.
Back
Top