Fujitsu SPARC ENTERPRISE M9000 Service Manual page 304

c. Align the PCI card with the center part of the lower latch of the cassette.
Note – To ensure that the PCI card is properly mounted, you need to confirm that
the PCI card base is properly centered at the latches and securely fastened in
position.
FIGURE 13-8
13-12 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
Then, while pressing the PCI card against the center part of each of the
upper latches of the cassette, tighten the fixing screws in the sequence
shown in
FIGURE 13-8
Sequence of Fixing the PCI Card in Position
to fix the card in position..