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      CPU thermal module removal and installation - ThinkPad SL400, SL500

      For access, remove these FRUs in order:

      1. Battery.
      2. Thermal door
      3. Fan assembly


      Step Screw (quantity) Color Torque
      1 to 4 M2 × 4 mm, wafer-head, nylon-coated (4) Silver 0.167 Nm(1.7 kgfcm)

      Attention: Do not handle the CPU thermal module roughly. Improper handling of the module can cause distortion or deformation and imperfect contact with components.


      When installing:

      • Before you attach the CPU thermal module to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked (a) as in the following figure. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component.

      • Make sure that the fan connector is attached firmly.
      Purchase parts online


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      • Alias ID: MIGR-71469
      • Document ID: PD013758
      • Last Updated :17 Jun 2014
      • © 2016 Lenovo