1) Dismount the base printed–circuit board by following the
dismounting procedure described in Section 2.6.1.
2) Pull outward the claw of each of the four spacers used to secure the card
PCB, then release each latch. (See Fig. a.)
3) Extract the card PCB upward. (See Fig. b.)
Card PCB Card PCB
Fig. a Spacer
Demounting a card PCB