Dell OptiPlex NX1 - Manual (Page 133)

Removing and Replacing Parts on the Mini Tower Chassis 6-17
([SDQVLRQ&DUGV
The computer has a removable expansion-card cage. The expansion-card cage
contains the riser board and any installed expansion cards. Dell recommends
that you remove the expansion-card cage first before removing or installing
expansion cards.
If you are not removing any expansion cards, leave the external cables
attached to them.
([SDQVLRQ&DUG&DJH
)LJXUH ([SDQVLRQ&DUG &DJH 5HPRYDO
To remove the expansion-card cage, follow these steps:
1. Rotate the lever toward the back of the computer until it stops in the
upright position.
2. Slide the expansion-card cage out of the computer.
To replace the expansion-card cage, align the tabs on the left and right sides of
the expansion-card cage with the slots on the back and bottom of the chassis.
With the securing lever in its extended position, slide the expansion-card cage
into place.
lever
expansion-card cage
chassis
bottom slot