Locations — 0588 and 5088 expansion units

Expansion unit part locations.

Note: The known logical location codes for this unit are listed next to the corresponding physical location in the following information. If you are working with a logical location code for this unit and it is not listed in the following information, contact your next level of support.

The following diagram shows field replaceable unit (FRU) layout in the expansion units. Use it with the following tables. If you need address information, refer to Addresses — 0588 and 5088 expansion units.

Figure 1. Expansion units

Figure 2. Expansion units, top view

The following table provides the components available for callout on the expansion units. It matches those components with the FRU containing the component. The other columns give location information, a link to a removal and replacement procedure, and additional information.

Attention: After replacing any part on a server or expansion unit, perform Verifying the repair.

Table 1. FRU locations and failing components
Failing item name	Symbolic failing item name	Physical location code	Link to part number	Failing item removal and replacement procedures
Expansion unit backplane SPCN Card enclosure or backplane Multi-adapter bridge (all)	TWRCARD MA_BRDG MABRCFG PPCITWR PRI_PCI HSL_LNK PIOCARD MASBUST WRBKPLT WRPLNR	Un-CB1	28B8	Exchanging the tower card in the 5088 and 0588 expansion units
PCI adapter in slot 1	PIOCARD MASBUS SLOTERR	Un-CB1-C01	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 2	PIOCARD MASBUS SLOTERR	Un-CB1-C02	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 3	PIOCARD MASBUS SLOTERR	Un-CB1-C03	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 4	PIOCARD MASBUS SLOTERR	Un-CB1-C04	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 5	PIOCARD MASBUS SLOTERR	Un-CB1-C05	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 6	PIOCARD MASBUS SLOTERR	Un-CB1-C06	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 7	PIOCARD MASBUS SLOTERR	Un-CB1-C07	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 8	PIOCARD MASBUS SLOTERR	Un-CB1-C08	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 9	PIOCARD MASBUS SLOTERR	Un-CB1-C09	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
RIO/HSL adapter card HSL I/O adapter PCI host bridge adapter	SIIOADP SIADPCD SI_PHB	Un-CB1-C10	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 11	PIOCARD MASBUS SLOTERR	Un-CB1-C11	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 12	PIOCARD MASBUS SLOTERR	Un-CB1-C12	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 13	PIOCARD MASBUS SLOTERR	Un-CB1-C13	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 14	PIOCARD MASBUS SLOTERR	Un-CB1-C14	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI adapter in slot 15	PIOCARD MASBUS SLOTERR	Un-CB1-C15	Part number catalog	Exchanging cards (concurrent) in the 5088 and 0588 expansion units
PCI bridge set 1	BRDGSET BRDGST1	Un-CB1-C01 Un-CB1-C02 Un-CB1-C03 Un-CB1-C04		Replace the cards using the remove and replace procedures corresponding to the locations indicated.
PCI bridge set 2	BRDGSET BRDGST2	Un-CB1-C05 Un-CB1-C06 Un-CB1-C07 Un-CB1-C08 Un-CB1-C09		Replace the cards using the remove and replace procedures corresponding to the locations indicated.
PCI bridge set 3	BRDGSET BRDGST3	Un-CB1-C11 Un-CB1-C12 Un-CB1-C13 Un-CB1-C14 Un-CB1-C15		Replace the cards using the remove and replace procedures corresponding to the locations indicated.
Power distribution board		Un-PB1	Part assembly diagrams for 0551, 0588, 5079, 5088, 5294, and 5296	Exchanging the power distribution board in the 5088 and 0588 expansion units
Power supply 1		Un-P01	Part assembly diagrams for 0551, 0588, 5079, 5088, 5294, and 5296	Exchanging the power supplies in the 5088 and 0588 expansion units
Power supply 2		Un-P02	Part assembly diagrams for 0551, 0588, 5079, 5088, 5294, and 5296	Exchanging the power supplies in the 5088 and 0588 expansion units
Fan 1		Un-B01	Part assembly diagrams for 0551, 0588, 5079, 5088, 5294, and 5296	Exchanging the air-moving device (AMD) in the 5088 and 0588 expansion units
Fan 2		Un-B02	Part assembly diagrams for 0551, 0588, 5079, 5088, 5294, and 5296	Exchanging the air-moving device (AMD) in the 5088 and 0588 expansion units
Fan controller card	AMDCTRL	Un-BB1	Part assembly diagrams for 0551, 0588, 5079, 5088, 5294, and 5296	Exchanging the AMD controller card in the 5088 and 0588 expansion units
Display panel		Un-NB1	Part number catalog	Exchanging the control panel in the 5088 and 0588 expansion units
RIO/HSL adapter card connector	HSL_LNK HSL2 HSL2_xx HSLH HSLH_xx	Un-CB1-C10-00	Part number catalog	Exchanging RIO/HSL cables
RIO/HSL adapter card connector	HSL_LNK HSL2 HSL2_xx HSLH HSLH_xx	Un-CB1-C10-01	Part number catalog	Exchanging RIO/HSL cables

Notes:

Card positions C01, C05, and C11 are required to be either I/O processors or Integrated xSeries® servers (IXS).
J11 is an RPO connection, J14 is a uninterruptible power supply connector, J15 is an SPCN 1 connector, and J16 is an SPCN 2 connector.
Multi-adapter bridge domains are labeled PCI Bridge Set inside the I/O unit.

The following table provides information necessary to identify the IOP to which IOAs are assigned.

The left column indicates the domain in which IOA assignment is allowed.
The right column is used to determine the IOP to which an IOA is assigned.

The first position in the list must be an IOP. The remaining positions may be IOPs or IOAs. IOAs are assigned to the first IOP located to their left in the list. Although IOAs can be manually reassigned using SST/DST, the IOA assignments return to the default order after each IPL.

Table 2. Identify the IOP to which IOAs are assigned
Multi-adapter bridge domain / PCI bridge set	IOA assignment rules
C01 - C04	C01, C02, C03, C04
C05 - C09	C05, C06, C07, C08, C09
C11 - C15	C11, C12, C13, C14, C15