Dell Precision 350 - Manual (Page 35)

5. Pull the release lever straight up until the microprocessor is released.
6. Remove the microprocessor from the socket.
1 securing clip (2)
2 latch (2)
3 heat sink
4 microprocessor socket
5 retention base
NOTICE: Lay the heat sink down with the thermal grease facing upward.
NOTICE: If you are installing a microprocessor upgrade kit from Dell, discard the original heat sink. If you are not installing a microprocessor upgrade kit
from Dell, reuse the original heat sink and blower when you install your new microprocessor.
NOTICE: Be careful not to bend any of the pins when you remove the microprocessor from the socket. Bending the pins can permanently damage the
microprocessor.
1 release lever
2 microprocessor
3 socket