Lenovo B475e, Hardware Maintenance Manual, Page: 63 / 98

• “1040 Optical drive” on page 47
• “1050 Memory modules” on page 47
• “1060 PCI Express Mini Card for wireless LAN” on page 48
• “1070 Backup battery” on page 49
• “1080 Keyboard” on page 50
• “1090 Keyboard bezel” on page 52
Removal steps of I/O board
Remove the screw 1 , and then detach the cable.
1
3
2
Step Screw (quantity) Color
Torque
1
M2 × 5 mm, flat-head, nylon-coated (2) Black 1.85 kgfcm
When installing: Make sure that the cable is attached firmly to the system board.
Chapter 7
.
Removing and replacing a FRU
57