Power Supply Connectors And Voltages - IBM Aptiva 2170 Hardware Maintenance Service Manual

Power Supply Connectors and Voltages

Refer to the following figures when checking for voltages on power supply
cable connectors.
When checking voltages, the power supply fan must be running. To power-on
the power supply without using the on/off switch, use a screwdriver or other
tool to short the connector CN4(pin10-20) for 2170 or CN2 for 2171 and 2172
(with the switch cable disconnected from the connector on the system board),
or use a connection (jumper) to short the black and green wires of the 20-pin
connector on power supply.
Pin-hole side view
Power Supply Output Pin Assignment
Pin
1
2
3
4
5
6
7
8
9
10
11
Voltage
+3.3Vdc
+3.3Vdc
Ground
+5Vdc
Ground
+5Vdc
Ground
Power Good
+5Vdc
+12Vdc
+3.3Vdc
Cable side view
Cable Color
Orange
Orange
Black
Red
Black
Red
Black
Gray
Purple
Yellow
Orange
Parts/Test Point Locations 153