1140 System Board - Lenovo G555 Hardware Maintenance Manual

Lenovo G555 Hardware Maintenance Manual

1140 System board

For access, remove these FRUs in order:
• "1010 Battery pack" on page 40
• "1030 Hard disk drive (HDD) slot cover and HDD" on page 42
• "1040 Memory/Wireless module/CPU (central processing unit) compartment
• "1050 Optical drive" on page 45
• "1060 DIMM" on page 46
• "1070 Fan assembly and Heat Sink assembly" on page 47
• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 51
• "1100 Keyboard cover and power board" on page 53
• "1110 Keyboard" on page 56
• "1120 LCD unit" on page 58
• "1130 Keyboard bezel" on page 62
Figure 14. Removal steps of system board
Unplug the power connector on the bottom in the direction shown by arrow
When installing: Make sure that the power connector is attached firmly.
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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.
• In the whole process, make sure not to drop or stack the system board.
• If you put a system board down, make sure to put it only on a padded surface such
as an ESD mat or conductive corrugated material.
cover" on page 44
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