Replacing A Hot-Swap Ac Power Supply - Lenovo System x3650 M5 Installation And Service Manual

Power supply
filler panel
Figure 195. Power supply removal
Step 5. If you are instructed to return the power supply, follow all packaging instructions, and use any
packaging materials for shipping that are supplied to you.

Replacing a hot-swap ac power supply

Use this information to replace a hot-swap ac power supply.
The following notes describe the type of power supply that the server supports and other information that
you must consider when you install a power supply:
• Before you install an additional power supply or replace a power supply with one of a different wattage,
you may use the Power Configurator utility to determine current system power consumption. For more
information and to download the utility, go to http://www.ibm.com/ systems/bladecenter/ resources/
powerconfig.html.
• The server comes with one hot-swap 12-volt output power supply that connects to power supply bay 1.
The input voltage is 100-127 V ac or 200-240 V ac auto-sensing for AC power supplied and is -48V dc
or -60V dc auto-sensing for DC power supplies.
• Power supplies in the server must be with the same power rating or wattage, and the same 80-plus
efficiency level to ensure that the server will operate correctly. For example, you cannot mix 550-watt
and 750-watt power supplies in the server. Moreover, you cannot mix 750-watt Platinum and 750-watt
Titanium supplies in the server.
• Power supply 1 is the default/primary power supply. If power supply 1 fails, you must replace the power
supply with the same wattage and the same 80-plus efficiency level immediately.
• You can order an optional power supply for redundancy.
• These power supplies are designed for parallel operation. In the event of a power-supply failure, the
redundant power supply continues to power the system. The server supports a maximum of two
power supplies.
Statement 5
Hot-swap
power supply 2
.
Chapter 5 Installing, removing, and replacing components
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