IBM S822L Installation Manual page 36

Figure 18. Removing the filler panels
6. Determine to place the system in the rack. Record the EIA location.
Note: An EIA unit on your rack consists of a grouping of three holes.
7. Facing the front of the rack and working from the right side, use tape, a marker, or pencil to mark
the lower hole of each EIA unit.
8. Repeat step 7 for the corresponding holes located on the left side of the rack.
9. Go to the rear of the rack.
10. On the right side, find the EIA unit that corresponds to the bottom EIA unit marked on the front of
the rack.
11. Place a self-adhesive dot at the bottom EIA unit.
12. Mark the corresponding holes on the left side of the rack.
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Power Systems: Installing the IBM Power System S822L (8247-22L)