HP ProLiant ML370 Generation 4 Reference And Troubleshooting Manual page 69

NOTE: HP recommends that you remove all bezel blanks to facilitate
drive installation.
6. Store the blanks for later use.
7. Remove all expansion boards.
8. Remove the center wall:
a. Loosen the four thumbscrews, and lift the wall to access the fan cable.
b. Disconnect the fan cable.
c. Lift the center wall fully out of the chassis.
Hardware options installation 69