Lenovo ThinkPad T430s Hardware Maintenance Manual page 101

• 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 64
• "1020 Serial Ultrabay Slim device or blank bezel" on page 65
• "1030 Solid-state drive or hard disk drive" on page 66
• "1040 Memory module" on page 68
• "1050 PCI Express Mini Card for wireless LAN" on page 69
• "1060 PCI Express Mini Card for wireless WAN or mSATA solid-state drive" on page 72
• "1070 4–in–1 media card reader or ExpressCard reader" on page 79
• "1080 Keyboard" on page 79
• "1100 Keyboard bezel assembly with fingerprint reader, smart card reader, and speaker assembly"
on page 85
• "1110 LCD unit" on page 89
• "1120 DC-in sub card" on page 91
• "1140 Bluetooth wireless radio switch FPC" on page 93
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
.
Chapter 9 Removing or replacing a FRU
95