Nvidia DGX A100 Service Manual page 72

Motherboard Tray Battery Replacement
b). Use a small flat-head screwdriver or similar thin tool to gently lift the battery from the
battery holder.
c). Replace the battery with a new CR2032, installing it in the battery holder.
7. Re-insert the IO card, the M.2 riser card, and the air baffle into their respective slots.
NVIDIA DGX A100 System DU-10044-001 _v01 | 66