Installing A Hot-Swap Ac Power Supply - Lenovo x3650 M4 BD 5466 Installation And Service Manual

Note: If the grease is properly applied, approximately half of the grease will remain in the syringe.
Step 6. Install the heat sink onto the microprocessor as described in "Replacing a microprocessor and
heat sink" on page 232.

Installing a hot-swap ac power supply

Use this information to install a hot-swap ac power supply.
The following items describe the type of power supply that the server supports and other information that
you must consider when you install a power supply:
• To confirm that the server supports the power supply that you are installing, see
http://www.lenovo.com/us/en/ serverproven/.
• The server comes standard with one 750-watt or 900-watt hot-swap power supply. The input voltage
is 110 V ac or 220 V ac auto-sensing.
Note: You cannot mix 110 V ac and 220 V ac, or 750-watt and 900-watt power supplies in the server, it
is not supported.
• 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.
• The server can run fully configured with one power supply. For redundancy support, you must install
the second hot-swap power supply.
Note: You cannot mix high-efficiency and non-high-efficiency power supplies in the server.
Statement 5
CAUTION:
The power control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power
cord. To remove all electrical current from the device, ensure that all power cords are disconnected
from the power source.
Statement 8
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
.
Chapter 2 Installing optional devices
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