IBM OpenCAPI Installing And Servicing page 37

Figure 20. Inserting the OpenCAPI cable into the interposer
13. Using your labels, replace any plugs that you removed from the rear of the OpenCAPI PCIe adapter.
14. Install the air baffle (A) onto the interposer.
Use four screws (0.16 in, 4 mm in length) at (B), secure the air baffle to the interposer.
Removing and replacing OpenCAPI adapter support on the 8335-GTH system 23