Dell Latitude C840 - Manual (Page 15)

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Fan
Dell™ Latitude™ C840 Service Manual
Removing the Fan
1. Follow the instructions in " Preparing to Work Inside the Computer ."
2. Remove the system board .
3. Remove the three M2 x 4-mm screws from the fan.
4. Disconnect the two fan cables from the system board.
5. Pull the fan away from the back-panel bracket.
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NOTICE: Disconnect the computer and attached devices from electrical outlets and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer.
1 fan cables
2 M2 x 4-mm screws (3)
NOTICE: When reconnecting the fan cables, connect the shorter cable to the connector closest to the fan. Route both cables so that they will not be
pinched by the microprocessor thermal-cooling assembly.