Lenovo ThinkStation P920 Hardware Maintenance Manual page 170

e. Pivot the handle
position.
Figure 115. Closing the PCIe card latch
f. For some models, install the PCIe card retainer.
Insert the corresponding end of the PCIe card retainer into the gaps in the PCIe card latch as shown.
Pivot the retainer downward to insert part
Figure 116. Installing the PCIe card retainer
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P920 Hardware Maintenance Manual
2 as shown until it stops, and then press it downward until the latch
a into the corresponding slot in the multi-function bracket.
1 snaps into