Lenovo B470e Lenovo B470/B470e Hardware Maintenance Manual - Page 59

System board assembly, 1070 PCI Express Mini Card for wireless LAN/WAN

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Remove the screw 9 and then remove the power board 10 . 9 10 Step 9 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (1) Color Black Torque 1.6 kgfcm 1100 System board assembly 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. • 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 44 • "1020 Dummy card" on page 44 • "1030 Bottom slot cover" on page 45 • "1040 Hard disk drive" on page 45 • "1050 Optical drive" on page 46 • "1060 Memory modules" on page 47 • "1070 PCI Express Mini Card for wireless LAN/WAN" on page 48 • "1080 Keyboard" on page 49 • "1090 Keyboard bezel" on page 51 Chapter 7. Removing and replacing a FRU 53

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Remove the screw
9
and then remove the power board
10
.
10
9
Step
Screw (quantity)
Color
Torque
9
M2 × 3 mm, flat-head, nylon-coated (1)
Black
1.6 kgfcm
1100 System board assembly
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.
•
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 44
•
“1020 Dummy card” on page 44
•
“1030 Bottom slot cover” on page 45
•
“1040 Hard disk drive” on page 45
•
“1050 Optical drive” on page 46
•
“1060 Memory modules” on page 47
•
“1070 PCI Express Mini Card for wireless LAN/WAN” on page 48
•
“1080 Keyboard” on page 49
•
“1090 Keyboard bezel” on page 51
Chapter 7
.
Removing and replacing a FRU
53