Lenovo NeXtScale n1200, Installation And Service Manual

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Make sure that all adapters and other server components are installed and seated correctly and that you
have not left loose tools or parts inside the server.
Important: Before you slide the cover forward, make sure that all the tabs on the front, rear, and side of the
cover engage the chassis correctly. If all the tabs do not engage the chassis correctly, it will be very difficult
to remove the cover later.
To replace the server cover, complete the following steps.
Step 1. Position the cover on top of the server.
Step 2. Slide the cover toward the front of the server.
System-board
tray cover
System-board
tray
Release latch
(Ensure latch closes)
Figure 51. Cover installation
Step 3. Make sure that the cover correctly engages all the inset tabs on the server.
Removing and replacing Tier 1 CRUs
This section provides information for removing and replacing Tier 1 CRUs in the server.
Replacement of Tier 1 CRUs is your responsibility. If Lenovo installs a Tier 1 CRU at your request, you will be
charged for the installation.
The illustrations in this document might differ slightly from your hardware.
Removing a DIMM
Use this information to remove a memory module.
Read the safety information in Safety and Installation guidelines.
If you are replacing a server component in the water-cooled technology tray, you need to remove the water-
cooled technology tray from the chassis enclosure and refer to the “Removing a water-cooled technology
tray from a chassis” on page 139 and “Installing a water-cooled technology tray in a chassis” on page 140
sections.
To remove a dual inline memory module (DIMM), complete the following steps.
Chapter 6
.
Removing and replacing server components
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