Oracle EXADATA X5-8, Service Manual, Page: 223 / 278

Replace the Midplane Assembly
Replace the Midplane Assembly
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 that the server is removed from the rack. Removing all front-side and
back-side components lessens the weight of the server.
Use this procedure to replace a failed bus bar midplane assembly.
Before You Begin
This procedure requires a Phillips screwdriver.
1. Prepare the server for cold service. See “Prepare the Server for Cold
Service” on page 98 .
2. At the front of the server:
a. Remove all eight fan modules. See “Remove a Fan Module” on page 117 .
b. Remove both fan frames. See “Remove a Fan Frame” on page 122 .
c. Remove the CMODs. See “Remove a CMOD” on page 137 .
d. Remove the four PSUs. See “Remove a PSU” on page 126 .
e. Remove the FIM. See “Remove the FIM” on page 133 .
3. At the rear of the server:
a. Remove any cables attached to the rear of the server.
Before removing cables, label each one, noting its connection point.
b. Remove the SMOD. See “Remove the SMOD” on page 197 .
c. Remove all eight DPCCs. See “Remove a DPCC” on page 185 .
Before removing the DPCCs, label each one populated with PCIe cards, noting its slot
location. For slot designations, see “DPCC and PCIe Card Slot Designations” on page 87 .
Servicing Components 223