Oracle X7-8, Service Manual

Page: 226 / 308

Replace the Midplane Assembly
Replace the Midplane Assembly
This procedure requires that the server is removed from the rack. Removing all front and back
components lessens the weight of the server.
Since the midplane contains both A- and B-side Primary FRU containers, when the
midplane needs to be replaced, service needs to manually reprogram the FRU containers into
FRUPROM0 and FRUPROM1.
For component serviceability, locations, and designations, see “Identifying
Components” on page 24 .
Use this procedure to replace a failed bus bar midplane assembly. See “Server Chassis
Overview” on page 40
Before You Begin
Caution -
Hazardous voltage. Possibility of electrical shock if the power cables are connected to
the server when accessing the midplane and bus bar assembly. This is a cold-service procedure.
Power down the system and disconnect all power cables before removing the server access
panels.
This procedure requires a Phillips screwdriver and a mechanical lift. Do not lift the server
manually. Use a mechanical lift instead.
1. Prepare the server for cold service.
This is a cold-service component. Power down the system and disconnect the AC power cables
from the server before performing this procedure.
See
“Preparing the Server for Component Replacement” on page 101 .
2. Remove the server front accessible components.
a. Remove all eight fan modules FM0-7. See “Remove a Fan
Module” on page 131 .
b. Remove both fan frames. See “Remove a Fan Frame” on page 136 .
c.
Remove all CMODs. See “Remove a CMOD” on page 162 .
d. Remove four power supplies, PS0-3. See “Remove a Power
Supply” on page 141 .
e. Remove the FIM. See “Remove the FIM” on page 219 .
226 Oracle Server X7-8 Service Manual • October 2017