Lenovo ThinkSystem SR645 V3 User Manual page 152

• When removing the memory modules, label the slot number on each memory module, remove all the
memory modules from the system board (system board assembly), and set them aside on a static-
protective surface for reinstallation.
• When disconnecting cables, make a list of each cable and record the connectors the cable is
connected to, and use the record as a cabling checklist after installing the new system board
(system board assembly).
Attention:
• Read "Installation Guidelines" on page 35
work safely.
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
"Power off the server" on page
• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-
sensitive components in their static-protective packages until installation, and handling these devices with
an electrostatic-discharge wrist strap or other grounding system.
• Put electrostatic-discharge gloves on before handling extremely sensitive electronic boards.
CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
CAUTION:
The heat sinks and processors might be very hot. Turn off the server and wait several minutes to let
the server cool before removing the server cover.
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and "Safety inspection checklist" on page 36
44.
to ensure that you