Bull ESCALA Power7 5796 G30, Reference, Page: 16 / 52

2) Face the front of the rack and working from the left side. Make a note of the lowest EIA unit to
be used for the expansion unit. Use tape, a marker, or a pencil to mark the top mounting hole
(A) of the lowest EIA unit. Count up two holes and place another mark beside that mounting
hole (B) . Mark the rack so that these marks can also be seen from the rear of the rack
3) Begin with the hole identified by your mark for B . Count up two holes and place a nut clip (C)
in that mounting hole. Count up two holes and place a nut clip (D) in that mounting hole.
4) Repeat the last two steps to place two marks and place two nut clips on the corresponding
mounting holes on the front-right side of the rack.
5) Go to the back of the rack. On the left side, find the EIA unit that corresponds to the lowest
EIA unit marked on the front of the rack.
6)
Mark the top mounting hole (E) of this EIA unit. Count up two holes and place another mark
beside that mounting hole (F) . Count up four holes and place another mark beside that
mounting hole (G) .
7) Repeat the last step to place three marks on the corresponding mounting holes on the
rear-right side of the rack.
3. Install the rail assembly into the rack as follows:
Important: To complete this procedure, it is suggested that you use two people to attach the rail
assembly to the rack. Position one person in front of the rack and one person at the rear of the rack.
CAUTION:
Installing the rails in the rack is a complex procedure. To install the rails correctly, you must
perform each task in the following order. Failure to do so might cause rail failure and potential
danger to yourself and the system unit.
a.
Loosen the two screws (B) in the middle of both rails (A) to allow each rail to extend.
Figure 1. EIA units with expandable rails for the 5796 expansion unit
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Power Systems: Installing the 57/96 and 14G/30 expansion units