1150 System board
Important notices for handling the system board:
When handling the system board, read the following:
• The system board has an accelerometer, which can be broken when several thousands of G-forces are applied.
Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject
the accelerometer to as much as 6000 G's of shock.
• 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 Base cover assembly” on page 60
• “1020 Built-in battery” on page 62
• “1030 M.2 solid-state drive and brackets” on page 63
• “1040 Thermal fan assembly” on page 66
• “1050 Memory module” on page 67
• “1070 Wireless LAN card” on page 69
• “1090 Keyboard” on page 70
Note: If the keyboard must be removed to access other FRUs, you need the keyboard removal tool
(product part number: 01LX856) to remove the keyboard. You can purchase the tool as a separate FRU at:
https://support.lenovo.com/partslookup
Removal steps of the system board
Chapter 8. Removing or replacing a FRU 79
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