Lenovo B475e Notebook - Manual (Page 64)

Remove the I/O board 4 .
4
1130 System board assembly
Important notices for handling the system board:
When handling the system board, bear the following in mind:
• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.
• Avoid rough handling of any kind.
• At every point in the process, be sure not to drop or stack the system board.
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated
conductive surface.
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 44
• “1020 Bottom slot cover” on page 44
• “1030 Hard disk drive” on page 45
• “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
58 Hardware Maintenance Manual