Power Supply Voltages PS/2 - Server 85, Model 95 and 3511
Some power supplies have a built-in test switch and LED on the side of
the power supply (there is no need to check voltages). On those power supplies,
disconnect the power supply from the system board, and remove all cables except the power cord.
Power-on the power supply and push the test button. If the LED lights up, and the power supply fan runs, the power supply is OK.
On all other power supplies, short pin 1 to pin 2 and read the voltages on the other pins. If the voltages are correct, and
the power supply fan runs, the power supply is OK.
Primary Power Supply Voltages
If the voltages are correct and the power supply fan runs, the power
supply is OK.
Please see the LEGAL - Trademark notice.
-Lead Pin
+Lead Pin
Vdc Minimum
Vdc Maximum
5
5
5
B
B 3
4
7
D
A+3.7
+9.0
-9.0
+3.7
+9.0+ 6.2
+15.0
-15.0
+ 6.2
+15.0
Drive Connector Voltages
-Lead Pin
+Lead Pin
Vdc Minimum
Vdc Maximum
B
B D
A+ 3.7
+ 9.0+ 6.2
+15.0
If the power supply shuts down, or appears to fail at power-on, you
might have one of the following problems:
The nominal operating current of the devices installed collectively exceeds the available current of the
power supply.
Connectors P11, P12, and P13
-Lead Pin
+Lead Pin
Vdc Minimum
Vdc Maximum
2
1
+11.5
+12.6
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