POWER5 information.

Changing the processing unit identifier

Change the processing unit ID, also referred to as the processing unit system power control network (SPCN) ID.

Use this task if you need to change the processing unit identifier (SPCN ID). The processing unit SPCN ID is used by the SPCN firmware to identify the system type. It is also used to identify the primary service processor if there are two service processors in the system.

To perform this operation, your authority level must be one of the following:
  • Administrator
  • Authorized service provider
Note: This feature is available only when the system is powered off. This operation resets the service processor.

To change the processing unit identifier, do the following:

  1. On the ASMI Welcome pane, specify your user ID and password, and click Log In.
  2. In the navigation area, expand System Configuration.
  3. Select Processing Unit Identifier.
  4. Enter the desired information into the 2-character text area. Supported processing unit identifiers are shown in the following table:
    Model or expansion unit Processing unit identifier
    OpenPower® 710 BA
    285 B4
    OpenPower 720 BB
    505 C0
    510 and 9110-51A BA
    520 and 52A B4
    550 and 55A B5
    9116-561 B2
    570 B2
    570 (with one or more secondary units) B3
    575 B9
    590 and 595 B1
    5074 and 5079 81
    5088 and 0588 89
    5094 and 5294 8A
    0595 and 5095 8B
    5790 88
    7311-D10 88
    7311-D11 88
    7311-D20 8C
    Note: Processing unit IDs are not applicable for IntelliStation® POWER® 185, 7037-A50, and the 7031-D24 and 7031-T24 enclosure models.
  5. Click Save settings to complete the operation.