•1100 Keyboard bezel assembly
•1110 Bluetooth daughter card
•1120 Backup battery
•1130 Smart Card or Smart Card dummy spacer
•1140 Speaker assembly
•1150 Thermal module
•1160 CPU
•1170 LCD unit
•1180 Base cover assembly
•1190 I/O sub card
Important notices for RAID setting:
Before you replace the system board, make sure that you read Installing and configuring RAID, and have the necessary information. After you replaced the system board, RAID mode is recovered as default. To confirm the SATA mode setting, you can see the setting in ThinkPad Setup menu as follows:
Config ➙ Serial ATA (SATA) ➙ SATA Controller Mode Option ➙ RAID/Compatibility/AHCI
Important notices for handling the system board:
When handling the system board, bear the following in mind.
•The system board has an accelerometer, which can be broken by applying several thousands of
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.
•If a system board is dropped, you must test it, using
Note: If the test shows that HDD Active Protection is not functioning, be sure to document the drop in any reject report, and replace the system board.
•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 conductive corrugated material.
After replacing the system board, run
1.Place the computer on a horizontal surface.
2.Run Diagnostics ➙ ThinkPad Devices ➙ HDD Active Protection Test. Attention: Do not apply physical shock to the computer while the test is running.
Table 35. Location of major sensitive components on the system board
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.
b
d
CPU
Accelerometer chip for the HDD Active Protection System™
PCH (Platform Controller Hub)
Graphics
Note: d (Graphics) is only for the Switchable Graphics models and Workstation models. The system board in Integrated Graphics models does not have this chip.
