7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the coverengage the rails on the flex module. Then, push the cover to the front of the flex module until it snapsinto position.Figure 170. Reinstalling the flex module cover8. Install the flex module into the flex bay.9. Connect the four-digit-diagnostics-display cable to the four-digit-diagnostics-display connector on thesystem board. See “Parts on the system board” on page 38.10. Reconnect any removed cables to the flex module.What to do next:• To work with another piece of hardware, go to the appropriate section.• To complete the installation or replacement, go to “Completing the parts replacement” on page 220.Front Thunderbolt adapter kitThe front Thunderbolt adapter kit includes the following parts:• A front Thunderbolt I/O adapter• A front Thunderbolt PCIe x4 card• A bezel• A general-purpose input/output(GPIO) cable• A mini-SAS cable• An internal DP-to-DP cable• An external DP-to-DP cableTo remove or install a front Thunderbolt adapter kit, do the following:1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103.2. Record the cable connections and cable routing. Then disconnect all cables connected to the systemboard and the front Thunderbolt PCIe x4 card.3. Remove the flex module out of the chassis. See “Device in the flex bay” on page 105.Chapter 9. Hardware removal and installation 193
