3. In FC 9074 tower, the bus connected to card positions C01 - C04 is bus number 0001. The other bus
in FC 9074 tower is not required to be in order.
4. Card position C01 is required to be an I/O processor.
5. Card positions C05 and C11 are required to be either I/O processors or Integrated xSeries
(TM)
Servers
(IXS).
6. Multi-adapter bridge domains are labeled PCI Bridge Set inside the tower.
7. 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.
Table 1. IOA assignment rules
Multi-adapter bridge domain / PCI bridge set IOA assignment rules
C01 - C04 C01, C02, C03, C04
C05 - C07, C09, C10 C05, C06, C07, C09, C10
C11 - C15 C11, C12, C13, C14, C15
Table 2. FRU locations and failing components for Models 830, SB2 System Unit with FC 9074 base
I/O tower
Position FRU name
Possible failing
component
Type, CCIN, or part
number (use the Type,
model, and part number
list to determine the part
number when the type or
CCIN are given.)
Remove and replace or
recovery procedure
MB1 System unit
backplane
System unit
backplane
281A (See page 526) Go to Models 830/SB2 with FC
9074 - System Unit backplane
(MB1).
M01 Processor
regulator
Processor regulator 27AA (See page 526) or
27AB (See page 526)
Go to Models 830/SB2 with FC
9074 - Cards (dedicated).
M02 Memory riser
card (base)
Memory riser card 2881 (See page 527) Go to Models 830/SB2 with FC
9074 - Cards (dedicated).
M02
(Daughter
cards)
Memory
DIMM
See Figure 3. CCIN
2881 with pluggable
DIMM (See page 267)
below.
300F (See page 528), 3002
(See page 528), 3004 (See
page 528), 3005 (See page
528), 3006 (See page 528),
or 3007 (See page 528)
Go to Models 830/SB2 with FC
9074 - Cards (dedicated).
M03 Processor
card
Processor 245C (See page 522) or
245D (See page 522)
Go to Models 830/SB2 with FC
9074 - Cards (dedicated).
M04 Processor
card
Processor 245C (See page 522) or
245D (See page 522)
Go to Models 830/SB2 with FC
9074 - Cards (dedicated).
M05 Memory riser
card (feature)
Memory riser card 2881 (See page 527) Go to Models 830/SB2 with FC
9074 - Cards (dedicated).
262 Hardware (Remove and Replace; Part Locations and Listings)
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