CHAPTER 4: Installing Components50If your server is only equipped with a single power supply, the server must be turned off andthe AC power cord removed before replacing it.To replace a power supply module:1 If your server is equipped with more than one power supply module, determine whichpower supply module has failed (the LED on the power supply will be orange).2 If your server has only one power supply module installed, make sure that you turn off theserver, then unplug the power cord before continuing.- OR -If your server has two power supply modules installed, you do not need to turn off thepower to the server before continuing.3 Press the retaining clip (1) on the power supply to the left to release the power supplymodule (2) from the chassis.4 Pull the power supply module straight out of the server with the handle. It may takeconsiderable force to remove.5 Push the new power supply module into the server, with the retaining clip on the right,until it locks into place.6 Reconnect the AC power cord for the new power supply module.Replacing the RPS power distribution moduleTo replace the RPS power distribution module:1 Follow the instructions in “Preventing static electricity discharge” on page 30. Make surethat you turn off the server, then unplug the power cord(s) and all other cables connectedto the server.2 Follow the instructions in “Opening the server case” on page 31.3 Remove the power supply modules by following the instructions in “Replacing a powersupply module” on page 49.4 Disconnect the main power, CPU power, backplane power, I 2 C power, and midplane powercables. See “System board” on page 5 for the location of the connectors on the systemboard.
