IBM iSeries 270 Service Manual page 310

Possible failing
component FRU name
Device board Device board
Device board Device board
Display panel Display panel
Disk unit Disk unit
Optical Optical
Tape Tape
HSL connection HSL cable
Notes:
1. The FC 5074 Expansion I/O Tower contains two system PCI busses.
2. In the FC 5074 Expansion I/O Tower FRU locations and failing components table, the first of the two
busses in the Tower is designated as "xxxx" and the second bus in the Tower is designated as "yyyy".
3. In FC 5074 Expansion I/O Tower, the two bus numbers assigned to the busses are not required to be
in any order.
4. Card position C01 is required to be an I/O processor.
5. Card postitions C05 and C11 are required to be either I/O processors or Integrated xSeries Servers
(IXS).
6. J11 is an RPO connection, J14 is a uninterruptable power supply connector, J15 is an SPCN 1
connector, and J16 is an SPCN 2 connector.
7. Multi-adapter bridge domains are labeled PCI Bridge Set inside the Tower.
8. The following table provides information necessary to identify the IOP to which IOAs are assigned.
v The left column indicates the domain in which IOA assignment is allowed.
v The right column is used to determine the IOP to which an IOA is assigned.
v 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.
298
Hardware (Remove and Replace; Part Locations and Listings)
Type or CCIN
number (see the
Type, model, and
Position part number list)
DB1 or DB2 283D (See page
526) or 28CC
(See page 528)
DB3 283C (See page
526) or 28CB
(See page 528)
NB1 247B (See page
523)
D01 - D40, D46 See Type, model,
through D50 and part number
list.
D41 See Type, model,
and part number
list.
D42 See Type, model,
and part number
list.
HSL cables on See Type, model,
the HSL ports and part number
list.
Remove and
replace Additional
procedure comments
Go to FC 5074,
FC 5079, FC
9079 - Device
board - DB1 and
DB2.
Go to FC 5074,
FC 5079, FC
9079 - Device
board - DB3.
Go to FC 5074,
FC 5079 - Display
panel - NB1.
Go to Recovery
procedures.
Go to FC 5074,
FC 5079, FC
9079 -
Removable media
- D41 and D42.
Go to FC 5074,
FC 5079, FC
9079 -
Removable media
- D41 and D42.
Go to HSL cables
- Concurrent.