The following tips describe the type of power supply that the server supports and other information that you
must consider when you install a power supply:
• The standard shipping has only one power supply installed in the server. For redundancy and hot-swap
support, you must install an additional hot-swap power supply. Certain customized models might be
shipped with two power supplies installed.
• Ensure that the devices that you are installing are supported. For a list of supported optional devices for
the server, go to:
https://static.lenovo.com/us/en/serverproven/index.shtml
Notes:
• Ensure that the two power supplies installed on the server have the same wattage.
• If you are replacing the existing power supply with a new power supply of different wattage, attach the
power information label that comes with this option onto the existing label near the power supply.
Figure 108. Hot-swap power supply label on the cover
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CAUTION:
Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage,
current, and energy levels are present inside any component that has this label attached. There are no
serviceable parts inside these components. If you suspect a problem with one of these parts, contact
a service technician.
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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.
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182 ThinkSystem SR650 Setup Guide
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