MA_BRDG

The problem is the multi-adapter bridge hardware on a system bus.

Perform the following:

Is the location information for this failing component available in the problem view you are working with of the serviceable event user interface of an operating system, service processor, or Hardware Management Console (HMC)?
- No: Continue with the next step.
- Yes: Use this location information and go to step 3.
Perform the following:
1. Record the bus number, which is in word 7 of the reference code (see Breaking down a RIO/HSL or PCI bus reference code for help in determining the bus number).
2. To determine which enclosure, frame, or I/O unit contains the failing component, search for the bus number using one of the following interfaces:
  - HMC system configuration user interface
  - i5/OS® Hardware Service Manager (HSM)
  - System configuration listing
3. Record the enclosure or unit's type/model or feature. Then continue with the next step.
The failing component is the FRU containing the multi-adapter bridge. Use the following table to identify the name of the FRU that is indicated by the location in the user interface you are working with, or by using the bus number you obtained previously in this procedure. Use the link to locations information to exchange the FRU.

Table 1. FRU containing the multi-adapter bridge
Model or expansion unit	Name of FRU to exchange	Symbolic FRU to look for	Link to locations information
505	System backplane	MA_BRDG	Locations — model 505
510 and OpenPower® 710	System backplane	MA_BRDG	Locations — model 510 and OpenPower 710
515, 520, and 525	System backplane	MA_BRDG	Locations — model 520, and 525
550 and OpenPower 720	System backplane	MA_BRDG	Locations — OpenPower 720 and model 550
570	I/O backplane on the primary unit or secondary unit	MA_BRDG	Locations — model 570
575	System backplane	MA_BRDG	Locations — model 575
5074, 8079-002, 8093-002	Expansion unit backplane	MA_BRDG	Locations — 5074, 8079-002, and 8093-002 expansion I/O units
5079	Expansion unit backplane	MA_BRDG	Locations — 5079 expansion I/O unit
5088, 0588	Expansion unit backplane	MA_BRDG	Locations — 5088 and 0588 expansion I/O units
5094, 5294, 8094-002	Expansion unit backplane	MA_BRDG	Locations — 5094, 5294, and 8094-002 expansion I/O units
5095, 0595	Backplane	MA_BRDG	Locations — 5095 and 0595 expansion I/O units
Type 1519 external xSeries® server	Integrated xSeries adapter (IXA) card	Follow the RIO/HSL cables	Locations — Integrated xSeries adapter card (IXA)
7311-D10, 7311-D11, and 5790	I/O unit backplane	MA_BRDG	Locations — 7311-D10, 7311-D11, and 5790 expansion units
7311-D20	Backplane	MA_BRDG	Locations — 7311-D20 expansion unit
5791, 5794, and 7040-61D	Backplane 1	MA_BRDG	Locations — 5791, 5794, and 7040-61D expansion unit
5791, 5794, and 7040-61D	Backplane 2	MA_BRDG	Locations — 5791, 5794, and 7040-61D expansion unit

This ends procedure.