Nvidia DGX A100 Service Manual

Chapter 18. Motherboard Tray Battery
Replacement
18.1. Motherboard Tray Battery Replacement
Overview
This is a high-level overview of the procedure to replace the DGX A100 system motherboard tray bat-
tery.
1. Get a replacement battery - type CR2032.
2. Shut down the system.
3. Label all motherboard cables and unplug them.
4. Slide out the motherboard tray.
5. Open the motherboard tray IO compartment.
6. Pull out the M.2 riser card with both M.2 disks attached.
7. Pull out the dual port Mellanox card (slot 4).
8. Replace the battery on the motherboard.
9. Install the dual port Mellanox card (slot 4).
10. Install the M.2 riser card with both M.2 disks attached.
11. Close the lid IO compartment on the motherboard tray.
12. Slide the motherboard tray into the system.
13. Plug in all cables using the labels as a reference.
14. Power on the system.
15. Conrm the system is healthy by running nvsm show health
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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