Power Distribution Board; Removing The Power Distribution Board - IBM 7063-CR2 Manual

c) Simultaneously rotate the two levers on each side of the system backplane in to secure the system
backplane to the system.
d) Tighten the two screws on the sides of the system backplane.
e) Using your labels, replace the signal cables into the rear of the system.
f) Using your labels, replace the two power cords at the rear of the system.
For instructions, see "Connecting the power cords to a 7063-CR2 system" on page 101.
6. Power on the system for operation.
For instructions, see "Starting the 7063-CR2 system " on page 98.
Removing and replacing the power distribution board in the 7063-
CR2
Learn how to remove and replace the power distribution board in the IBM Power Systems HMC (7063-
CR2) system.
Removing the power distribution board from the 7063-CR2 system
To remove the power distribution board from the IBM Power Systems HMC (7063-CR2) system, complete
the steps in this procedure.
About this task
You can use a magnetic tip screwdriver to remove and replace the screws.
Procedure
1. Power off the system.
For instructions, see "Stopping the 7063-CR2 system" on page 99.
2. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge
from damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap
is used for static control. It does not increase or decrease your risk of receiving electric
shock when using or working on electrical equipment.
• If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for
a minimum of 5 seconds. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface
for at least 5 seconds before you continue with the service process.
3. Remove all the fans from the system.
For instructions, see "Removing a fan from the 7063-CR2 system" on page 18.
4. Remove the system backplane from the rear of the system.
a) Label and remove the two power cables.
For instructions, see "Disconnecting the power cords from a 7063-CR2 system" on page 100.
b) Label and remove the signal cables from the rear of the system.
c) Loosen the two screws (A) on the sides of the system backplane as shown in the following figure.
Removing and replacing parts in the 7063-CR2 41