Lenovo ThinkSystem SD550 V3 User Manual page 116

Attention: Read "Installation Guidelines" on page 43
sure that you work safely.
Procedure
Step 1. Make preparations for this task.
a. Power off the node (see
from the node.
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 the node from the chassis (see
carefully lay the node on a flat, static-protective surface, orienting the node with the front
toward you.
Notes:
• When removing the node, note the node tray number and make sure to install the node in
the same tray from which it was removed. Reinstalling the node into a different tray requires
the node to be reconfigured.
• For safety, make sure to hold the node with both hands when lifting the node.
c. Remove the top cover (see
d. If the GPU air duct is installed in the node, remove it (see
119).
e. If the internal adapter bracket is installed and blocks the way of removing the fan cage,
disconnect all the cables from the internal adapter; then, remove the internal adapter bracket
from the node (see
f. Disconnect all the fan cables from the system board; then, remove the fan cage from the node
(see "Remove the fan cage" on page
Step 2. Identify the fan to be removed; then, remove the fan from the fan cage.
a. Pull out the four rivets that secure the fan to the fan cage on the top side.
b. Push the fan from the bottom of the fan cage to disengage it.
c. Lift the fan out of the fan cage.
ThinkSystem SD550 V3 User Guide
106
and
"Power off the node" on page
"Remove a node from the chassis" on page
"Remove the top cover" on page
"Remove the internal adapter bracket" on page
104).
"Safety inspection checklist" on page 44
53); then, disconnect all external cables
203).
"Remove the GPU air duct" on page
127).
to make
75); then,