Dell Precision T5400 (Late 2007) - Manual (Page 33)

About Your Computer 33
7 If metal shields are present in your computer and you are converting from
desktop to tower mode (see "About the Metal Shields Present in Some
Drive Configurations" on page 207), remove the vented metal insert from
the FlexBay if the bay is empty or has an optional third hard drive installed
in it:
a Pull the vented metal insert forward until its surface is flush with that
of the surrounding chassis.
b Rotate the bottom of the metal insert up towards you, disengaging its
lower screws from the surrounding metal.
c Lift the metal insert from the computer, disengaging its top screws
and metal tabs from the surrounding metal.
1 5.25-inch metal shield 2 vented metal insert
Desktop Orientation
Tower Orientation
1
2