Lenovo 7D7Q, Руководство по обслуживанию

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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.
S009
CAUTION:
To avoid personal injury, disconnect the fan cables before removing the fan from the device.
S017
CAUTION:
Hazardous moving fan blades nearby. Keep fingers and other body parts away.
S033
CAUTION:
Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with
metal, which might result in spattered metal, burns, or both.
Attention:
• Read the following section(s) to ensure that you work safely.
– “Safety” on page iii
– “Installation Guidelines” on page 51
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
“Power off the server” on page 11 .
• Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
• Make sure to replace a defective fan with another unit of the exact same type.
Watch the procedure
Chapter 4
.
Hardware replacement procedures
77