Remove the Motherboard
| Caution - Ensure that all
power is removed from the server before removing or installing the
motherboard assembly. You must disconnect the power cables from
the server before performing these procedures. |
| Caution - These procedures require that
you handle components that are sensitive to ESD. This sensitivity
can cause the component to fail. To avoid damage, ensure that you
follow antistatic practices as described in ESD Measures. |
This is a cold-service procedure that must be performed by
qualified service personnel. The server must be completely powered
down before performing this procedure. See Component Service Categories for more information about this
category of service procedures.
Note - When replacing the motherboard, remove the SP and System
Configuration PROM from the old motherboard and install these components
on the new motherboard. The SP contains the Oracle ILOM system configuration
data, and the System Configuration PROM contains the system host
ID and MAC address. Transferring these components preserves the
system-specific information stored on these modules. Whenever you
replace the motherboard or the SP, you must update the firmware
so the portions of firmware in the SP and on the motherboard are consistent.
- Prepare
for servicing.
- Attach an antistatic
wrist strap.
- Power off the server and unplug
power cords from the power supplies.
See Removing Power From the Server.
- Remove the server from the rack.
See Remove the Server From the Rack.
- Remove the top cover.
See Remove the Top Cover.
- Remove all PCIe cards.
See Remove a PCIe Card or Filler Panel.
Always remove transceivers from a PCIe card before removing the card from the server.
- Remove the System Configuration
PROM from the motherboard.
You will reinstall it on the new motherboard.
- Remove the SP.
You will reinstall the SP on the new motherboard. See Remove the SP.
- Remove all memory risers.
See Remove a Memory Riser and DIMM.
- On a 1-processor motherboard,
remove the airflow baffle from the empty side of the center bracket.
Note - Save the airflow baffle to install on the new 1-processor
motherboard.
- On the processor side
of the center bracket, lift the airflow baffle's hooks away from
the edge of the center bracket (panel 1).
- Lift the airflow baffle away
from the motherboard (panel 2).
- Remove the System Remind button
assembly (air divider) by lifting it up and away from the power
supplies.
- Disconnect all cables connected
to the motherboard.
- Disconnect two longer
cables that connect the motherboard to the drive backplane.
Push down a metal tab on each connector and pull up.
- Disconnect two shorter cables
from the motherboard.
One cable goes to the drive backplane. The other is a ribbon
cable to the power supply.
- Disconnect the fan board power
cable and the ribbon cable from the motherboard.
- Remove the power supply cover
(panel 1).
You must guide two slots on the PS backplane cover
around two pins on the inside of the power supply cage.
- Lift the cover up a
little to clear the first part of the slots.
- Pull the cover a little towards
the front of the chassis.
- Push the tooth at the bottom
of the cover to clear the edge of the power supply cage.
- Lift the cover out of the chassis.
Notice the two cables that are now exposed. Be prepared to
move those cables out of the way when you lift the motherboard.
- Remove the four bus bar screws
that secure the motherboard to the PS backplane.
See Remove the PS Backplane.
- Position the drive end of the
cables off to the side using the tab on the top of the plastic power
supply cover.
- Remove the motherboard.
- Loosen the captive
screw (in the corner near the fans) that secures the motherboard
to the chassis (panel 1).
- Grasp the handle on the motherboard
and slide it toward the front of the chassis.
Tilt up the end of the motherboard that is near the front
of the chassis.
- Lift the motherboard out of the
chassis.
Ensure that remaining cables do not get caught on edges of
the motherboard.
- Remove the service processor
from the motherboard so you can reinstall it on the new motherboard.
See Remove the SP.
- Install a new motherboard.
See Install the Motherboard.