10. Reinstall the I/O board shield. See “Replacing the I/O board shield” on page 26.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 47.Replacing the power button boardAttention: Do not open your computer or attempt any repair before reading and understanding the Chapter1 “Read this first: Important safety information” on page 1 .To replace the power button board, do the following:1. Remove all media from the drives and turn off all connected devices and the computer. Then,disconnect all power cords from electrical outlets and all cables that are connected to the computer.2. Remove the computer covers. See “Removing the computer covers” on page 23.3. Disconnect the power button board cable from the power button board4. Remove the power button board as shown.Figure15. Removing the power button board5. Install the new power button board.6. Connect the power button board cable to the new power button board.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 47.Replacing the wireless cardAttention: Do not open your computer or attempt any repair before reading and understanding the Chapter1 “Read this first: Important safety information” on page 1 .To replace the wireless card, do the following:1. Remove all media from the drives and turn off all connected devices and the computer. Then,disconnect all power cords from electrical outlets and all cables that are connected to the computer.2. Remove the computer covers. See “Removing the computer covers” on page 23.3. Remove the power button board. See “Replacing the power button board” on page 30.30 ideacentre 610S Hardware Maintenance Manual