Lenovo ThinkSystem SD650 V3 User Manual page 156

Remove the power distribution board
Use this information to remove the power distribution board.
About this task
Attention:
• Read "Installation Guidelines" on page 33
work safely.
• Turn off the corresponding DWC tray that you are going to perform the task on.
• Disconnect all external cables from the enclosure.
• Use extra force to disconnect QSFP cables if they are connected to the solution.
• To avoid damaging the water loop, always use the water loop carrier when removing, installing or folding
the water loop.
Note: Ensure you have "SD650 V3 Neptune DWC Waterloop Service Kit" in hand to install components.
Prepare the following screwdrivers to ensure you can install and remove corresponding screws properly.
Screwdriver Type
Torx T10 head screwdriver
Torx T30 head screwdriver
Phillips #1 head screwdriver
Phillips #2 head screwdriver
Watch the procedure
A video of this procedure is available at YouTube:
BQs0NXGCm6ZwVtMOSykxd
Procedure
Note: Depending on the model, your solution might look slightly different from the illustration.
Step 1. Make preparations for this task.
a. Remove the tray from the enclosure. See
40.
b. Remove the tray cover. See
c. Remove the cross braces. See
Step 2. Remove two Torx T10 screws (per node); then, remove the VR (voltage regulator) clamp plate out of
the node.
ThinkSystem SD650 V3 Neptune DWC Tray User Guide
148
and "Safety inspection checklist" on page 34
https://www.youtube.com/playlist?list=PLYV5R7hVcs-
.
"Remove a DWC tray from the enclosure" on page
"Remove the tray cover" on page
"Remove the cross braces" on page
to ensure that you
Screw Type
Torx T10 screw
Torx T30 screw
Phillips #1 screw
Phillips #2 screw
43.
45.