|
IBM-AUSTRIA - PC-HW-Support 30 Aug 1999 |
Main Power Supply Connector (20-pin)
Main (ATX) Power-Supply Connector (20-pin)
This 20-pin main power supply connector is located on the system board.
On most ATX-type Power-Supplies
there is a Power-Override switch available,
(Located next to the line power cable connector - do not confuse with the VOLTAGE-SELECTOR switch - if installed).
If the system does not power-on after pressing the power button, check first the power cable
and the Power-Override switch (must be switched to ON, if available) .
Systemboard / Powersupply - (top-side / front-end view) 20-pin ATX power-connector
(You can power on the power supply without using the on/off switch.
Use a connection (jumper) to short the BLACK and GREEN (pin-13 ground <-> pin-14 P.S.-on)
wires of the 20-pin ATX connector on power supply.)
These voltages must be checked with the power
supply cabels connected to the system board.
Pin |
Signal |
Function |
Cable Color |
Pin |
Signal |
Function |
Cable Color |
11 |
3.3 V |
+3.3 Vdc |
Orange |
1 |
3.3 V |
+3.3 Vdc |
Orange |
12 |
-12 V |
-12 Vdc |
Blue |
2 |
3.3 V |
+3.3 Vdc |
Orange |
13 |
COM |
Ground |
Black |
3 |
COM |
Ground |
Black |
14 |
PS-ON |
DC Remote Enable |
Green |
4 |
5 V |
+5 Vdc |
Red |
15 |
COM |
Ground |
Black |
5 |
COM |
Ground |
Black |
16 |
COM |
Ground |
Black |
6 |
5 V |
+5 Vdc |
Red |
17 |
COM |
Ground |
Black |
7 |
COM |
Ground |
Black |
18 |
-5 V |
-5 Vdc (Note 1) |
White |
8 |
POK |
Power Good |
Gray |
19 |
5 V |
+5 Vdc |
Red |
9 |
5VSB |
Standby Voltage |
Purple |
20 |
5 V |
+5 Vdc |
Red |
10 |
+12 V |
+12 Vdc |
Yellow |
NOTE 1: -5Vdc is not needed/available on some machines.
Hard Disk Drive / Diskette - Power Connector
Sample only - BAT <-> ATX - power supply
Back to
More INFORMATION / HELP is available at the IBM-HelpCenter
Please see the LEGAL - Trademark notice.
Feel free - send a for any BUG on this page found - Thank you.