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Microprocessor Module
Dell Latitude D505 Service Manual
Removing the Microprocessor Module
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CAUTION: Before performing the following procedures, read the safety instructions in your Product Information Guide. |
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NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by
periodically touching an unpainted metal surface (such as the back panel) on the computer.
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NOTICE: Do not touch the processor die. Press and hold the microprocessor down on the substrate on
which the die is mounted while turning the cam screw to prevent intermittent contact between the cam
screw and microprocessor.
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NOTICE: To avoid damage to the microprocessor, hold the screwdriver so that it is perpendicular to the
microprocessor when turning the cam screw.
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- Follow the instructions in "Preparing to Work Inside the Computer."
- Remove the keyboard.
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NOTICE: To ensure maximum cooling for the microprocessor, do not touch the heat transfer areas on
the microprocessor thermal-cooling assembly. The oils in your skin reduce the heat transfer capability of
the thermal pads.
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- Remove the microprocessor thermal-cooling assembly.
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NOTICE: When removing the microprocessor module, pull the module straight up. Be careful not to bend
the pins on the microprocessor module.
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- To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam
screw counterclockwise until it comes to the cam stop.
1 | pin-1 corner |
2 | ZIF socket |
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NOTE: The ZIF-socket cam screw secures the microprocessor to the system board. Take note of the
arrow on the ZIF-socket cam screw.
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- Lift out the microprocessor module.
Installing the Microprocessor Module
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NOTICE: Ensure that the cam lock is in the fully open position before seating the microprocessor
module. Seating the microprocessor module properly in the ZIF socket does not require force.
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NOTICE: A microprocessor module that is not properly seated can result in an intermittent connection
or permanent damage to the microprocessor and ZIF socket.
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- Align the pin-1 corner of the microprocessor module with the pin-1 corner of the ZIF socket,
and insert the microprocessor module.
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NOTE: The pin-1 corner of the microprocessor module has a triangle that aligns with the triangle on the
pin-1 corner of the ZIF socket.
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NOTICE: You must position the microprocessor module correctly in the ZIF socket to avoid permanent
damage to the module and the socket.
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When the microprocessor module is correctly seated, all four corners are aligned at the same height. If one or more corners of the module are higher than the others, the module is not seated correctly.
- Tighten the ZIF socket by turning the cam screw clockwise to secure the microprocessor
module to the system board.
- Replace the other computer parts you removed earlier in this procedure.
- Update the BIOS using a flash BIOS update program floppy disk or CD. For instructions on
how to flash the BIOS, see "Flashing the BIOS."
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