2. Remove the 6 screws (5).
3. Lift the system board (1) , and then remove the system board (2) by sliding it up and to the right
at an angle.
Reverse this procedure to install the system board.
Heat sink
Description Spare part number
Heat sink for models equipped with an Intel HM87 Express chipset and internal graphics (includes
processor and replacement thermal material)
720231-001
Heat sink for models with an Intel HM87 Express chipset, switchable discrete graphics, and an
Nvidia N14P-GV2 (GeForce 740M) graphics card (includes processor and replacement thermal
material)
720232-001
For units with Intel HM87 Express chipset, switchable discrete graphics and Nvidia N14P-GT
(GeForce 750M) graphics card (includes processor and replacement thermal material)
720233-001
Heat sink for models equipped with an Intel HM77 Express chipset and switchable discrete
graphics (includes processor and replacement thermal material)
720234-001
72 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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