Lenovo THINKCENTRE 6019 - Manual (Page 149)

8. Install the new adapter into the expansion connector in the PCI riser.
9. Pivot the adapter latch down to retain the adapter.
10. Reinstall the PCI riser into the system board.
11. Go to “Completing the parts replacement” on page 148.
Chapter 9. Replacing FRUs - Ultra SFF Desktop computers 143