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1120 System board and thermal fan
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 Battery pack" on page 68
•
"1020 Bottom cover" on page 68
•
"1030 M.2 solid-state drive" on page 69
•
"1040 Optical drive or optical-drive bay bezel" on page 70
•
"1050 Memory module" on page 72
• "1060 Hard disk drive assembly or solid-state drive assembly" on page 73
•
"1070 Wireless LAN card" on page 74
•
"1080 Coin-cell battery" on page 75
•
"1090 Keyboard" on page 76
•
"1110 Keyboard bezel assembly" on page 78
Attention: The following components soldered on the top side of the system board are extremely sensitive.
When you service the system board, avoid any kind of rough handling.
.
Chapter 9
Removing or replacing a FRU
81
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