HP Compaq Pro 6300 Hardware Reference Manual page 43

12.
Slide the metal plate left (1), then lift it off the chassis (2).
Figure 2-40 Removing the Metal Plate
13.
Pull the latch next to the lower side of the hard disc drive cage away from the cage to release it,
then slide the cage toward the edge of the chassis and lift it out.
Figure 2-41
Removing the Hard Disc Drive Cage
Replacing Drives
37