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Chapter 10. DIMM Replacement
Caution: Static Sensitive Devices: Be sure to observe best practices for electrostatic discharge
(ESD) protection. This includes making sure personnel and equipment are connected to a common
ground, such as by wearing a wrist strap connected to the chassis ground, and placing components
on static-free work surfaces.
10.1. DIMM Replacement Overview
This is a high-level overview of the procedure to replace a dual inline memory module (DIMM) on the
DGX H100 system.
Use the nvsm health command to identify the failed DIMM
1.
2.
Get a replacement DIMM from NVIDIA Enterprise Support
3.
Shut down the system
4.
Label all motherboard tray cables and unplug them
5.
Remove the motherboard tray and place on a solid flat surface
6.
Remove the motherboard tray lid
7.
Use the reference diagram on the lid of the motherboard tray to identify the failed DIMM
8.
Replace the bad DIMM with the new one
9.
Close the lid on the motherboard tray
10.
Insert the motherboard tray into the system
11.
Plug in all cables using the labels as a reference
12.
Power on the system
13.
Verify that all DIMMs are now healthy with nvsm health
14.
Ship back the failed unit to NVIDIA Enterprise Support using the packaging provided
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