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Note: Before you close the cover, make sure that the air baffle and all components are installed and
seated correctly and that you have not left loose tools or parts inside the compute node. Retention
clips that secure the I/O expansion adapters must be in the closed position to install the cover.
Figure 25. Compute node cover installation
Step 2.
Hold the front of the compute node and slide the cover forward to the closed position, until it clicks
into place.
After you install the compute node cover, complete the following steps:
1. Install the compute node into the chassis (see "Install the compute node in the chassis" on page 25 ).
2. Power on the compute node.
DIMM replacement
Use the following information to remove and install a DIMM.
For DIMM configuration details, see the Lenovo ThinkSystem SN550 Type 7X16 Setup Guide for more
information.
Remove a DIMM
Use this information to remove a DIMM.
Before you remove a DIMM, complete the following steps:
1. Read "Safety" on page iii and "Installation Guidelines" on page 21 to ensure that you work safely.
2. Power off the corresponding compute node that you are going to perform the task on.
3. Remove the compute node from the chassis (see "Remove the compute node from the chassis" on page
24).
4. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the
bezel pointing toward you.
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ThinkSystem SN550 Compute Node Maintenance Manual
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