Dell Precision T3400 (Late 2007) - Manual (Page 246)

246
Adding and Replacing Parts
3 Unpack the new processor, being careful not to touch the underside of the
processor.
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.
4 If the release lever on the socket is not fully extended, move it to that
position.
5 Orient the front and rear alignment notches on the processor with the
front and rear alignment notches on the socket.
6 Align the pin-1 corners of the processor and socket.
1 processor cover 2 tab
3 processor 4 processor socket
5 center cover latch 6 release lever
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8 7
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