Remove The System Board And The I/O Board Cable - Lenovo 20V9003DIX Hardware Maintenance Manual

Remove the system board and the I/O board cable

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 35
"Remove the battery pack" on page 36
"Remove the solid-state drive (SSD)" on page 36
"Remove the heat sink" on page 37
"Remove the fans" on page 38
"Remove the I/O bracket (left)" on page 41
Step 1. Detach the antenna cable connectors and disconnect the I/O board cable from the I/O board. Then,
disconnect cables connected to the system board.
Figure 31. Disconnect cables connected to the system board
Step 2. Remove the system board and the I/O board cable.
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Chapter 4 Removing a FRU or CRU
47