• 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 on the top cover near the
power supply.
Figure 73. Hot-swap power supply label on the cover
S035
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.
S002
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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98 ThinkSystem SR550 Maintenance Manual
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