HPE Apollo 2000 User Manual page 118

Secure the front support bracket for Accelerator 2 with two M2.5 screws.
ii.
NVIDIA GRID K2 Reverse Air Flow GPU Accelerator
o
Secure the front support bracket for Accelerator 2 with four M2.5 screws.
i.
Secure the rear support bracket for Accelerator 2 with three T-10 screws.
ii.
Hardware options installation 118