Lenovo thinksystem SN850 7X15, Руководство по установке

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Figure 15. DIMM installation
Step 7. Make sure that the small tabs on the retaining clips engage the notches on the DIMM. If there is a
gap between the DIMM and the retaining clips, the DIMM has not been correctly installed. Press
the DIMM firmly into the connector, and then press the retaining clips toward the DIMM until the
tabs are fully seated. When the DIMM is correctly installed, the retaining clips are parallel to the
sides of the DIMM.
Note: Retaining clips on the DIMM connectors must be in the closed position to install the air
baffles correctly.
Attention: To maintain proper system cooling, do not operate the compute node without an air baffle
installed over the DIMM connectors.
Install an I/O expansion adapter
Use this information to install an I/O expansion adapter option.
Before you install an I/O expansion adapter, complete the following steps:
1. Read “Installation Guidelines” on page 26 to ensure that you work safely.
2. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the
bezel pointing toward you.
3. Remove the compute node cover (see “Remove the compute node cover” on page 29 for instructions).
This component can be installed as an optional device or as a CRU. The installation procedure is the same
for the optional device and the CRU.
Attention: When installing an I/O adapter in one of the I/O expansion connectors, make sure the numbers in
the Hexagon and Pentagon on the I/O expansion connector (see the service labeling on top of the compute
node cover for details) corresponds to the particular shape and numbering of the I/O module bay on the Flex
chassis (see the bay labeling along the top and bottom edges of the chassis rear for details). If the correlation
is incorrect, communication with the chassis may fail.
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ThinkSystem SN850 Compute Node Setup Guide