Dell Studio XPS 435 MT (Late 2008) - Manual (Page 11)

9. If the release lever on the socket is not fully extended, move it to that position.
10. Orient the front and back alignment-notches on the processor with the front and back alignment-notches on the socket.
11. Align the pin-1 corners of the processor and socket.
12. Set the processor lightly in the socket and ensure that the processor is positioned correctly.
13. When the processor is fully seated in the socket, close the processor cover.
14. Pivot the socket release lever back towards the socket, and snap it into place to secure the processor.
15. Clean the thermal grease from the bottom of the heat sink.
16. Apply the new thermal grease to the top of the processor.
17. Replace the processor fan and heat sink assembly (see Replacing the Processor Fan and Heat Sink Assembly ).
18. Connect the power cables to the power for processor connector (PWR2) and the main power connector (PWR1) on the system board (see System Board
Components ).
19. Replace the computer cover (see Replacing the Computer Cover ).
20. Connect your computer and devices to electrical outlets, and then turn them on.
1 processor cover 2 tab
3 alignment notch (2) 4 processor
5 socket 6 center cover latch
7 release lever 8 processor pin-1 indicator
CAUTION: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn
on the computer.
CAUTION: Socket pins are delicate. To avoid damage, ensure that the processor is aligned properly with the socket, and do not use excessive
force when you replace the processor. Be careful not to touch or bend the pins on the system board.
CAUTION: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the
processor.
NOTE: Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket.
CAUTION: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal bonding, which is a
requirement for optimal processor operation.
CAUTION: Ensure that the processor fan and heat sink assembly is correctly seated and secure.