HP HPE Alletra 2140 Hardware Manual page 71

1 Fastener
2 Riser card
4. Move the primary PCIe cage (left) from the failed controller to the new controller.
a) Lift the tab of the fastener and turn the fastener one half turn (180°) counter clockwise to release the PCIe cage.
b) Grasp the PCIe cage with both hands and lift the cage out of the controller to unseat the underlying riser card from
its connector.
c) Align the PCIe cage and guide post with the grooves of the new controller, and lower the cage into the controller.
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3 Connector
Maintenance Procedures 71