Lenovo ideacentre All-In-One Y910 Hardware Maintenance Manual page 48

Step 11. Remove the three screws that secure the rear I/O module to the motherboard, and then lift it
up gently.
Step 12. Disconnect the cables from the rear I/O module.
Step 13. Remove the four screws that secure rear I/O board to the bracket, and then slide the rear I/O
board out.
Step 14. To install the new rear I/O module:
a. Align the holes in the new I/O board with the ones in the bracket.
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ideacentre All-In-One Y910 Computer Hardware Maintenance Manual