HPE ProLiant ML110 Gen11 User Manual page 109

11. To install the redundant system fan, do the following:
a. Attach the fan to the chassis.
b. Tighten the screws on the chassis.
12. To remove the default PCI fan, do the following:
a. Release all fan cables from the front cable channel metal tabs.
b. Remove the PCI fan cage.
HPE ProLiant ML110 Gen11 Server User Guide 109