HPE ProLiant ML350 Gen11 - Page 166

Performance heatsink
16. Place the processor-heatsink module on a flat work surface with its contact side facing up.
17. Remove the fan cage bracket:
a. Retract and hold the spring plunger (callout 1).
b. Slide the bracket towards the front of the chassis to release it (callout 2).
HPE ProLiant ML350 Gen11 Server Maintenance and Service Guide 166