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remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Attention:
• Read
"Installation Guidelines" on page 15
you work safely.
• Power off all the nodes in the chassis; then, disconnect all the power cords from the installed power
supply units.
Procedure
Step 1.
Make preparations for this task.
a.
Power off all the nodes (see
cables from the nodes.
Note: If necessary, press the release clip with a flat-head screwdriver to remove an external
network cable from the rear of a 2U node.
b.
Remove all the nodes from the chassis.
For the procedures of removing a specific node, see the links below:
• SD530 V3:
• SD550 V3:
c.
Remove all power supply units and PSU fillers from the PSU cage (see
power supply" on page 26
d.
Remove the chassis from the rack (see
lay the chassis on a flat, static-protective surface.
e.
Remove the PSU cage from the chassis (see
carefully lay the PSU cage on a flat, static-protective surface, orienting the midplane upward.
Step 2.
Loosen the six screws that secure the chassis midplane to the PSU cage.
Step 3.
Lift the chassis midplane away from the PSU cage.
36
ThinkSystem D3 Chassis User Guide
and
"Safety inspection checklist" on page 16
"Power off the system" on page
https://pubs.lenovo.com/sd530-v3/remove_node_from_chassis
https://pubs.lenovo.com/sd550-v3/remove_node_from_chassis
and
Removal of a PSU
18); then, disconnect all external
filler).
"Remove the chassis from the rack" on page
"Remove the PSU cage" on page
to make sure that
"Remove a hot-swap
19); then,
32); then,
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