Power Supply Removal - IBM A40I TYPE 2271 Hardware Maintenance Manual

If the voltages are not correct, and the power cord is good, replace the power
supply.

Power supply removal

1. Remove the power cable.
2. Remove the cover (see "Removing the cover" on page 15).
3. Remove the four screws that secure the power supply to the back of the
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Hardware Maintenance Manual A40 Type 6840 A40P Type 6841 A40i Type 2271: IBM NetVista Computer
Pin Signal
1 3.3 V
2 3.3 V
3 COM
4 5 V
5 COM
6 5 V
7 COM
8 POK
9 5VSB
10 12 V
11 3.3 V
12 -12 V
13 COM
14 PS-ON
15 COM
16 COM
17 COM
18 No voltage
19 5 V
20 5 V
chassis.
Function
+3.3 V dc
+3.3 V dc
Ground
+5 V dc
Ground
+5 V dc
Ground
Power Good
Standby Voltage
+12 V dc
+3.3 V dc
-12 V dc
Ground
DC Remote Enable
Ground
Ground
Ground
Not used
+5 V dc
+5 V dc