IBM EMX0 PCIe Gen3 Installing page 21

Figure 3. Marking the front installation locations
Note: During this procedure, put nut clips in the (A) marks. Then, during the procedure to attach the
mounting hardware to the rack, put rail pins in the (B) marks.
7. Repeat step "6" on page 6 to place three marks on the corresponding mounting holes on the front-
right side of the rack. Insert a nut clip in the (A) mark.
8. Go to the rear of the rack and work from the left side to complete the following steps:
a) Find the EIA unit that corresponds to the lowest EIA unit marked on the front of the rack.
b) Use tape, a marker, or a pencil to mark the top mounting hole of this EIA unit (C).
c) Count up two holes and place another mark beside that mounting hole (C). You now have two
marks (C) on the rack, with one mounting hole between the marks.
d) Count up three mounting holes from where you placed your last mark, and place another mark next
to that mounting hole (D).
e) Count up three holes and place another mark beside that mounting hole (D). You now have two
marks on the rack (D). Insert nut clips in these two locations.
Figure 4. Marking the rear installation locations
Installing an EMX0 PCIe Gen3 I/O expansion drawer 7