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• 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 0.15 m (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 material.
For access, remove these FRUs in order:
•
"1010 Lenovo OneLink connector cover" on page 60
•
"1020 DIMM door" on page 61
•
"1030 Internal storage drive" on page 61
•
"1040 Memory module" on page 62
•
"1050 Wireless LAN card" on page 63
•
"1060 Coin-cell battery" on page 64
•
"1070 Keyboard" on page 65
•
"1080 Keyboard bezel assembly" on page 66
•
"1100 USB/audio card" on page 69
Attention: The following components soldered on the top side of the system board is extremely sensitive.
When you service the system board, avoid any kind of rough handling.
ThinkPad E460
For models with a discrete thermal module
a
Microprocessor
b
Video Graphic card (VGA)
a
.
Chapter 9
Removing or replacing a FRU
71
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