Replace the model 5786, 5787, 7031-D24, or 7031-T24 power supply

Learn how to correctly replace a power supply with the system power off.

Notes:

Do not connect the power cables to the power source until you are instructed to do so.
During normal operation, the secondary power-supply bay must have either a power supply or filler panel installed for proper cooling.

To replace a power supply, complete the following steps:

If you have not previously removed the power supply, do so now. For instructions, see Remove the model 5786, 5787, 7031-D24, or 7031-T24 power supply.
As shown in Figure 1, insert the new power supply into the empty power supply bay.
Figure 1. Power supply installation
Slowly press the power supply into the system.
Press the white latch toward the power supply.
Reconnect the power cable at the back of the power supply through the ring, if provided.
Lift up the cable bracket A and press the power switch C to lock the cable bracket into place.
Note the state of the light-emitting diodes (LEDs) on the power supply. If the LEDs indicate that the power supply is operating normally, that is, both of the green LEDs are on solid (not blinking), continue to the next step. If not, remove the power supply from the system and repeat the procedure starting with step 2. If, after repeating the procedure, the power supply is not operating normally, contact your service provider.
Note: The power supply has four light-emitting diodes (LEDs): two green LEDs (ac power good and dc power good), and two amber LEDs (the far right LED indicates the power supply status). If both of the green LEDs are on solid (not blinking) and the right amber LED is off, the power supply is operating correctly. If the ac power good LED is on, the dc power good LED is blinking, and the far right amber LED is off, then the system is turned off, but the power supply is still connected to the power source. If the far right amber LED is blinking, the power supply is not operating correctly or the identify function has been selected.
If you are working on a rack-mounted system unit, ensure that the system cables are routed correctly through the cable-management arm.
Figure 2. Cables routed through the cable-management arm
Reconnect the cables at the back of the system.
On a rack-mounted system unit, close the back rack door.
If the system was stopped, start the system. For instructions, see Start the system or logical partition.