Dell Vostro 500 (Mid 2009) - Manual (Page 50)

Replacing the Processor Module
CAUTION: Before you begin the following procedure, follow the safety instructions in the Product
Information Guide.
NOTICE: Do not touch the processor die. Press and hold the processor down on the substrate on which the die is
mounted while turning the cam screw to prevent intermittent contact between the cam screw and processor.
NOTICE: Ensure that the cam lock is in the fully open position before seating the processor module. Seating the
processor module properly in the ZIF socket does not require force. A processor module that is not properly seated can
result in an intermittent connection or permanent damage to the microprocessor and ZIF socket.
NOTE: If a new processor is installed, you will receive a new thermal-cooling assembly, which will include an affixed
thermal pad, or you will receive a new thermal pad along with documentation to illustrate proper installation.
1. Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor
module.
NOTE: The pin-1 corner of the processor module has a triangle that aligns with the triangle on the pin-1 corner
of the ZIF socket.
When the processor module is properly 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 properly.
1 ZIF-socket cam screw 2 ZIF socket
3 pin-1 corner
NOTICE: To avoid damage to the processor, hold the screwdriver so that it is perpendicular to the processor when
turning the cam screw.
2. Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.
3. Replace the processor thermal-cooling assembly (see Replacing the Processor Thermal-Cooling Assembly ).