Nvidia DGX A100 Service Manual

Chapter 2. Front Fan Module
Replacement
2.1. Front Fan Module Replacement Overview
This is a high-level overview of the steps needed to replace the front fan modules.
1. Identify the failed front fan module through the BMC or the fan module LED and submit a service
ticket to NVIDIA Enterprise Support.
2. Get a replacement from NVIDIA Enterprise Support.
3. Remove the failed fan module using the fan numbering diagram as a reference.
4. Insert the new fan module.
5. Conrm the new fan module is working correctly through the BMC or NVSM. sudo nvsm show
health
6. Return the bad fan module using the packaging from the new fan module.
2.2. Identifying the Failed Fan Module
There are several ways to determine the faulty fan module to replace.
3

Nvidia DGX A100 Specifications

General

GPU	8 x NVIDIA A100 Tensor Core GPUs
System Memory	1 TB DDR4
Storage	15 TB NVMe SSD
GPU Memory	320 GB total (40 GB per GPU)
CPU	2 x 64-Core AMD EPYC 7742
Networking	8 x 200 Gb/s InfiniBand or Ethernet
Interconnect	NVIDIA NVLink