Lenovo ThinkStation P720 Hardware Maintenance Manual page 199

7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover
engage the rails on the flex module. Then, push the cover to the front of the flex module until it snaps
into position.
Figure 170. Reinstalling the flex module cover
8. Install the flex module into the flex bay.
9. Connect the four-digit-diagnostics-display cable to the four-digit-diagnostics-display connector on the
system 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 kit
The 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 cable
To 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 system
board 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
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