To remove the cover, insert the key into the lock if necessary and turn it to the unlocked position.
Squeeze the blue release latch and lift the cover off the system.
To remove the bezel, release the three latches inside the chassis and rotate the bezel away from the chassis.
To remove the multi-card reader, first disconnect the signal cable from the systemboard, then press the blue release tab and slide the assembly and cable out of the machine.