Appendix A. Hardware disassembling for recycleFollow the instructions in this section to recycle components with compliance with local laws or regulations.Disassemble the system board assembly for recycleFollow the instructions in this section to disassemble the system board assembly before recycling.About this taskThe system board assembly contains the system I/O board and processor board. Before recycling each unit,you need to disassemble the system board assembly.ProcedureStep 1. Remove the system board assembly from the server. See “Remove the system I/O board orprocessor board” on page 255.Step 2. Remove the firmware and RoT security module from the system I/O board. See “Remove thefirmware and RoT security module” on page 249.Step 3. Separate the system I/O board from the processor board.Note: To prevent the contact of the system I/O board from damage, pinch and lift the plunger onthe system I/O board upward a little and pull out the system I/O board outward. During the entirepulling action, ensure that the system I/O board remains as horizontal as possible.Figure 531. Separating the system I/O board from the processor boarda. Remove the screws that secure the system I/O board.b. Lift and hold the rear lift handle and slide the system I/O board towards the rear todisengage it from the processor board.Step 4. Remove the screws from the processor board as illustrated.© Copyright Lenovo 2022, 2023 515