IBM OpenCAPI Installing And Servicing page 28

Figure 11. Removing the OpenCAPI cable from the interposer
3. If needed, label and remove any plugs that extend out of the rear OpenCAPI PCIe adapter.
4. Remove the OpenCAPI PCIe adapter from PCIe adapter slot 4 as shown in the following figure.
Carefully pass the cable through the bulkhead.
14 Power Systems: Installing and Servicing the OpenCAPI adapter support for the 8335-GTH system