Lenovo ThinkPad Edge L330 Hardware Maintenance Manual - ThinkPad Edge L330 - Page 81
System board assembly and VGA sub card
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2 1 3 When installing: Place the microprocessor above the microprocessor socket, and then rotate the head of the screw in the direction shown by the arrow 3 to secure the microprocessor. 1120 System board assembly and VGA sub card Important notices for handling the system board: When handling the system board, bear the following in mind: • The system board has an accelerometer, which can be broken if several thousands of G-forces are applied. Note: Dropping a system board from a height of as little as six inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6,000 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. • If a system board is dropped, be sure to document the drop in any reject report, and replace the system board. • 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 56 • "1020 Bottom cover" on page 57 • "1040 Hard disk drive or solid-state drive" on page 59 • "1050 PCI Express Mini Card for wireless LAN" on page 61 • "1060 PCI Express Half Mini Card for wireless WAN or mSATA solid-state drive" on page 63 • "1080 Keyboard" on page 67 • "1090 Keyboard bezel assembly and power button sub card" on page 70 • "1100 Thermal fan assembly " on page 72 • "1110 Microprocessor" on page 74 Chapter 9. Removing or replacing a FRU 75