Dell Precision T5400 (Late 2007) - Manual (Page 165)

Adding and Replacing Parts 165
Removing the I/O Panel
1 Follow the procedures in "Before You Begin" on page 151.
2 Remove the computer cover (see "Removing the Computer Cover" on
page 153).
3 Rotate the hard-drive carrier out of the computer (see "Rotating the Hard
Drive Carrier Out of the Computer" on page 156).
4 Disconnect the card fan connector from the system board.
5 If the system is in tower mode, pull to remove the full-length card retainer
piece beside the card fan.
1 card fan 2 card fan cable
3 card fan connector (FAN_CCAG on
system board)
4 front fan
5 full-length card retainer piece
3
5
2 1
4