Lenovo ThinkPad T430s Hardware Maintenance Manual - ThinkPad T430s and T430si - Page 97

PCI Express Mini Card for wireless LAN on Graphic Processing Unit GPU

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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 6 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. • 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 Battery pack" on page 60 • "1020 Serial Ultrabay Slim device or blank bezel" on page 61 • "1030 Solid-state drive or hard disk drive" on page 62 • "1040 Memory module" on page 64 • "1050 PCI Express Mini Card for wireless LAN" on page 65 • "1060 PCI Express Mini Card for wireless WAN or mSATA solid-state drive" on page 68 • "1070 4-in-1 media card reader or ExpressCard reader" on page 75 • "1080 Keyboard" on page 75 • "1100 Keyboard bezel assembly with fingerprint reader, smart card reader, and speaker assembly" on page 81 • "1110 LCD unit" on page 85 • "1120 DC-in sub card" on page 87 • "1140 Bluetooth wireless radio switch FPC" on page 89 Removal steps of system board, thermal fan assembly, 34-mm ExpressCard reader, and base cover 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. a Graphic Processing Unit (GPU) Note: The GPU is only available on models that have a discrete graphics card. b Microprocessor a b Chapter 9. Removing or replacing a FRU 91

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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 6 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.
•
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 Battery pack” on page 60
•
“1020 Serial Ultrabay Slim device or blank bezel” on page 61
•
“1030 Solid-state drive or hard disk drive” on page 62
•
“1040 Memory module” on page 64
•
“1050 PCI Express Mini Card for wireless LAN” on page 65
•
“1060 PCI Express Mini Card for wireless WAN or mSATA solid-state drive” on page 68
•
“1070 4–in–1 media card reader or ExpressCard reader” on page 75
•
“1080 Keyboard” on page 75
•
“1100 Keyboard bezel assembly with fingerprint reader, smart card reader, and speaker assembly”
on page 81
•
“1110 LCD unit” on page 85
•
“1120 DC-in sub card” on page 87
•
“1140 Bluetooth wireless radio switch FPC” on page 89
Removal steps of system board, thermal fan assembly, 34-mm ExpressCard reader, and base cover
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.
a
Graphic Processing Unit (GPU)
Note:
The GPU is only available on models that have a discrete graphics card.
b
Microprocessor
a
b
Chapter 9
.
Removing or replacing a FRU
91