Dell Dimension 4700C - Manual (Page 18)

7. Open the processor cover.
8. To remove the processor from the socket, lift the processor vertically in one motion.
Leave the release lever extended in the release position so that the socket is ready for the new processor.
Installing the Processor
1. Unpack the new processor.
2. If the release lever on the socket is not fully extended, move it to that position.
3. Align the pin-1 corners of the processor and socket.
NOTICE: Carefully remove the processor from the socket to avoid permanent damage to the processor.
NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: 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.