Dell Precision T3400 (Late 2007) - Manual (Page 245)

Adding and Replacing Parts
245
NOTICE:
When replacing the processor, do not touch any of the pins inside the
socket or allow any objects to fall on the pins in the socket.
6 Gently remove the processor from the socket.
Leave the release lever extended in the release position so that the socket is
ready for the new processor.
Replacing the Processor
NOTICE:
Ground yourself by touching an unpainted metal surface on the back of
the computer.
NOTICE:
When replacing the processor, do not touch any of the pins inside the
socket or allow any objects to fall on the pins in the socket.
1 Follow the procedures in "Before You Begin" on page 143.
2 Remove the computer cover (see "Removing the Computer Cover" on
page 145).
1 processor cover 2 processor
3 socket 4 release lever
1
2
3
4