Dell Precision T5400 (Late 2007) - Manual (Page 182)

182 Adding and Replacing Parts
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.
8 Gently remove the processor from the socket.
9 If you are installing a new processor, leave the release lever extended in the
release position so that the socket is ready for the new processor. See
"Installing the Processor" on page 183.
Otherwise, continue with step 10.
10 Close the processor access door.
11 Ensure that all connectors are properly cabled and firmly seated.
12 Rotate the hard-drive carrier back into place (see "Rotating the Hard-Drive
Carrier Back into the Computer" on page 159).
13 Replace the computer cover (see "Replacing the Computer Cover" on
page 161).
1 processor cover 2 processor
3 socket 4 release lever
1
2
3
4