6.Close the rear rack door.
Related information
Starting the system or logical partition
Replacing the
Learn how to replace a power supply with the system power turned on.
Attention: Two power supplies must be present in the system to power on the system unit. If one power supply fails, or you have a system failure that does not stop the fans, the system continues to operate. You can remove and replace the power supply with the system power turned on if it is done in less than 5 minutes. After 5 minutes, the system turns off the power to prevent the system from overheating. If the system power is turned off, go to “Replacing the
If your system is managed by the Hardware Management Console (HMC), use the HMC to replace a power supply. For instructions, see Exchanging a part by using the Hardware Management Console.
If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to replace a power supply in the server. For instructions, see Replacing a part by using the Systems Director Management Console.
If your system is not managed by an HMC or SDMC, complete the following steps to replace a power supply in a system while the system power is turned on:
1.To remove the power supply, see “Removing the
2.Perform the prerequisite tasks, as described in Before you begin.
3.Attach the wrist strap.
