• Ensure that the fan connector is attached firmly.
• Replace the thermal fan assembly if you observe the following:
– The cover of the thermal fan assembly is deformed or damaged.
– There is abnormal noise during rotation.
When you install the system board:
Ensure that all the connectors are attached firmly to the system board.
1140 Trackpad cable and trackpad
For access, remove these FRUs:
• “1020 Base cover assembly” on page 65
• “1110 Built-in battery” on page 75
Removal steps of the trackpad cable and trackpad
Step Screw (quantity) Color Torque
5
M2 × 2.7 mm, flat-head, nylon-coated (4) Silver
0.147 Nm
(1.5 kgf-cm)
78 E490 and R490 Hardware Maintenance Manual
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