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System board and ExpressCard slot assembly removal and installation - ThinkPad T500, W500

System board and ExpressCard slot assembly removal

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 G-forces.
    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 PC-Doctor for DOS, to make sure that the HDD Active Protection still functions (see below).
    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 PC-Doctor for DOS to make sure that HDD Active Protection still functions. The procedure is as follows:

  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.

For access, remove these FRUs, in order:

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
CPU
b
Video chip
c
MCH (Memory Controller Hub)
d
Accelerometer chip for the HDD Active Protection System™
e
ICH (I/O Controller Hub

System Board

System board and ExpressCard slot assembly removal step 1.

StepScrew (quantity)ColorTorque
1M2 x 2.7 mm, wafer-head, nylon-coated (2)Black0.189 Nm(1.85 kgfcm)


Turn the system board over, and then disconnect the ExpressCard slot assembly [a] from the system board.

System board and ExpressCard slot assembly removal step 2.

System board and ExpressCard slot assembly installation

When installing: Make sure that the connector of the Express Card slot assembly is attached to the system board firmly.

Purchase parts online

  • Alias ID: MIGR-71419
  • Document ID: PD000880
  • Last Updated :6/17/2014
  • (c) 2014 Lenovo