Apple Xserve (Original) - Manual (Page 63)

Installing or Replacing Server Components 63
10 Replace the card assembly by aligning it with the connector and pressing it into place.
11 Close the card retainer on the back panel and tighten its thumbscrew.
12 Close the server and reconnect any cords or cables that you detached.
Attach the PCI card assembly to the connector on the logic board by pushing
it in sideways. Be sure to engage the card in this slot on the back panel.
If the PCI card you are installing is full-length (12 inches), make sure
it fits in one of these two card guides. The card guides snap forward
and backward a short distance to help you position them on the cards.
Swing the small metal plate
to its closed position, and
tighten the thumbscrew.
Warning If you removed a card from the server and did not install a replacement, be
sure to place a port access cover over the empty slot in the back panel. Do not leave an
empty slot without a cover. An uncovered slot can affect the air flow that cools the
server’s internal components and cause damage.