Reliant Octel 200 and Octel 300 Message Servers PB6001401 Bedienungsanleitung Seite 472

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9-40
Installation and Maintenance
V
olume
Octel Overture 200/300 Serenade 3.0
PB60014–01
Installing the Motherboard Assembly in the Octel Overture 300
To
install the motherboard assembly
, use the following procedure:
Caution!
The motherboard must be aligned precisely to ensure
correct card engagement. T
o accomplish this, make
sure to follow the instructions exactly
.
1.
Install the filter power harness from the old motherboard on the new motherboard. Refer to
Figure 9-24 for correct installation.
2.
Remove the Option Control Chip (OCC) from the old motherboard and install it in the new
motherboard. Refer to the Option Control Chip Replacement section in this chapter for removal and
installation procedures.
3.
Hold the new motherboard up to the cabinet, and install a screw in the top, center screwhole to hold
it in place. Pass the power harness to the fan tray through the small, rectangular cutout in the bottom
of the motherboard.
4.
Install the remaining 17 screws along the top and bottom of the motherboard, so that it is just able to
move with a minimal amount of distance between the screwheads and the motherboard.
Do not
tighten screws yet.
5.
Install the five screws on the sides of the motherboard I/O panel, but do not tighten them at this time.
6.
Push only PCAs in slots A1 and A14 and the power supply assembly into the connectors on the
motherboard.
7. T
ighten the 18 screws at the top and bottom of the motherboard and the five screws on the
motherboard I/O panel.
8.
Plug the fan-tray harness into the top disk-drive backplane.
9.
Connect the two flat cables from the top disk-drive backplane to the motherboard.
10.
Connect the disk drive backplane power harness to the motherboard.
11.
Connect the maintenance port cable to the connector at the top left corner of the motherboard.
12.
Install the power filter assembly as described in the Octel Overture 300 Power
-Filter Assembly
Replacement section in this chapter
.
13.
Fasten the bottom rear panel with four screws, and reconnect the cables as they were connected on
the old motherboard.
14.
Fasten the top rear panel with four screws.
15. V
erify that the power supply unit is OFF. Attach the power cord.
If the cabinet is d.c. power
ed
, reconnect the wires from the d.c. power source to the power filter
assembly
. Refer to Figure 9-26.
16.
Plug the remaining boards into the motherboard.
17. T
ighten the two captive screws on the front of the power supply unit.
18. T
est the message server for correct operation by following the procedures in the Installation chapter
in this volume.
19.
Close and lock the door to the cabinet.
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