4. Press and hold the release tab to the left. Grasp the handle and pull thepower supply out of the server.ResultsIf you are instructed to return the power supply, follow all packaginginstructions, and use any packaging materials for shipping that are supplied toyou.Replacing a power supplyUse this information to replace a power supply.Replacing a hot-swap ac power supply:Use this information to replace a hot-swap ac power supply.About this taskThe following notes describe the type of power supply that the server supportsand other information that you must consider when you install a power supply:v Before you install an additional power supply or replace a power supply withone of a different wattage, you may use the IBM Power Configurator utility todetermine current system power consumption. For more information and todownload the utility, go to http://www.ibm.com/systems/bladecenter/resources/powerconfig.html.v The server comes with one hot-swap 12-volt output power supply that connectsto power supply bay 1. The input voltage is 100-127 V ac or 200-240 V acauto-sensing.v Power supplies in the server must be with the same power rating or wattage toensure that the server will operate correctly. For example, you cannot mix550-watt and 750-watt power supplies in the server.v Power supply 1 is the default/primary power supply. If power supply 1 fails,you must replace the power supply with the same wattage immediately.v You can order an optional power supply for redundancy.Figure 168. Power supply removal276 IBM System x3550 M4 Type 7914: Installation and Service Guide
