Nvidia DGX A100 Service Manual

NVIDIA DGX A100 Service Manual
18.2. Replacing the Motherboard Tray Battery
A battery failure can be determined in a few ways.
▶ “Invalid conguration” will appear on your screen.
▶ Setup appears on your screen before booting.
▶ “Press F1 to continue” appears on the console.
▶ A Clock Error or Clock Message appears on your screen.
▶ The system clock loses time and date.
Call NVIDIA Enterprise Support to conrm that the battery is the right component to replace. The
CR2032 battery is not provided by NVIDIA, but can be purchased from a convenience store.
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.
1. Power down the system.
2. Label all cables connected to the motherboard tray for easy identication when reconnecting.
3. Unplug the cables.
4. Remove the motherboard tray.
Refer to the instructions in the section Accessing the Motherboard Tray.
5. Remove the M.2 riser card, the IO card, and the air bae.
These components need to be removed to gain access to the battery.
1. Conrm the locations of the components to remove using the following diagram.
2. Lift o the IO card, the M.2.riser, and the air bae and set them on a solid surface.
84 Chapter 18. Motherboard Tray Battery Replacement

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