Dell Inspiron 4150 - Manual (Page 21)

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Hybrid Cooling Fan
Dell™ Inspiron™ 4150
Removing the Hybrid Cooling Fan
1. Remove the hard drive .
2. Remove the keyboard .
3. Remove the display .
4. Remove the palm rest .
5. Remove the microprocessor thermal cooling assembly .
6. Remove the two M2.5 x 5-mm screws and one M2 x 3-mm screw that secure the hybrid cooling fan to the system board.
7. Disconnect the fan power cable from the system-board interface connector and remove the hybrid cooling fan.
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NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.
NOTICE: Read " Preparing to Work Inside the Computer " before performing the following procedure.
1 system-board interface
connector
5 M2 x 3-mm screw (1)
2 fan power cable 6 M2.5 x 5-mm screws
(2)
3 spring fingers 7 hybrid cooling fan
4 keyboard screw hole
HINT: The fan power cable is long, and can be pulled out from under the EMI shield to provide access to the connector.
NOTICE: Do not block the keyboard screw hole when reinstalling the fan. Route the fan power cable under the spring fingers and behind the keyboard
screw hole to prevent damage to the fan power cable.