IBM iSeries 270 Service Manual page 244

Sb2 and sb3 hardware

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Figure 2. Model 270 system unit, processor features 22A7, 22A8, 22AA, 22AB, 23F4, 23F5, 2423,

1. The model 270 system unit contains one system PCI bus with one multi-adapter bridge. The bus

number is 0001.

2. There is an embedded CFIOP in the System Unit Backplane in position MB1.

3. 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.

Hardware (Remove and Replace; Part Locations and Listings)

Type, CCIN, or part

number (use the

Type, model, and

part number list to

determine the part

number when the

Possible failing

type or CCIN are

HSL connection

See the Type, model,

and part number list.

Remove and replace/recovery

Go to Models 270, 800, and 810 - Time

of day (TOD) battery

Go to HSL cables - Concurrent.

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