What is the purpose of each of the PSU cables.
Hello everyone,
Im looking to do some modifications to my 2009 Mac Pro tower but in order to do so i need to know what all the PSU cables are.
Standard 24-PIN ATX PSU with the cable looks is this.
Description Wire color Pin number
+3.3 volts orange 1
+3.3 volts orange 2
ground black 3
+5 volts red 4
ground black 5
+5 volts red 6
ground black 7
PWR_OK gray 8
VSB +5 volts purple 9
+12 volts yellow 10
+12 volts yellow 11
+3.3 volts orange 12
--------------------------------
13 orange +3.3 volts
14 blue -12 volts
15 black ground
16 green PS_ON#
17 black ground
18 black ground
19 black ground
20 white -5 volts (optional)
21 red +5 volts
22 red +5 volts
23 red +5 volts
24 black ground
I need the equivalent for the 4,1 mac pro PSU.
If no one knows is there a way to test myself?
Thanks
- George
Это хороший вопрос?