c. Lift the front top cover o the device.
Note
• The at head M3x4 screws require a Phillips #2 screwdriver.
• A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for
electric screwdrivers.
8. Remove the CPU fan duct.
Note
Skip this step if your device does not have a CPU fan duct.
a. Detach the bottom hooks of the CPU fan duct from the CPU heatsink screws.
| NAS Repair Manual
Category E NAS Models 143
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