Dell Precision NT499 User Manual page 246

3 Unpack the new processor, being careful not to touch the underside of the
processor.
NOTICE:
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
9
1 processor cover
3 processor
5 center cover latch
246
Adding and Replacing Parts
You must position the processor correctly in the socket to avoid
2
8
3
7
2 tab
4 processor socket
6 release lever
4
5
6