Lenovo ThinkServer RD550, User Manual And Hardware Maintenance Manual

Page: 162 / 192

CAUTION:
The heat sinks and microprocessors might be very hot. Turn off the server and wait several minutes
to let the server cool before removing the server cover.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Note: Depending on the model, your server might look slightly different from the illustrations in this topic.
To replace the system board, do the following:
1. Remove all external media from the drives and turn off all attached devices and the server. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the server.
2. Prepare your server. See “Removing or extending the server from the rack cabinet” on page 61.
3. Remove the server cover. See “Removing the server cover” on page 61.
4. Remove the cooling shroud. See “Removing the cooling shroud” on page 64.
5. Remove the system fans. See “Replacing a system fan” on page 139.
6. Record the component locations, cable connections, and cable routing in the server.
7. Remove the two riser card assemblies. See “Replacing the riser card assembly” on page 143.
8. Remove the rear backplane/cage kit. See “Removing the rear backplane/cage kit” on page 100.
9. Remove the AnyFabric adapter if one is installed. See “Removing the AnyFabric adapter” on page 91.
10. Remove all memory modules. See “Removing a memory module” on page 70.
11. Remove the TSM Premium module if one is installed. See “Removing the TSM Premium module”
on page 72.
12. Remove the TPM if one is installed. See “Installing or removing the ThinkServer Trusted Platform
Module” on page 73.
13. Remove the SD module if one is installed. See “Removing the SD module” on page 84.
14. Remove the M.2 storage module if one is installed. See “Removing the M.2 storage module” on page 87.
15. Remove the coin-cell battery. See “Replacing the coin-cell battery” on page 145.
16. Remove the heat sinks. See “Installing or replacing a heat sink” on page 108.
148
ThinkServer RD550 User Guide and Hardware Maintenance Manual