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/recovery
procedure
Time of day
(TOD)
battery on
MB1
TOD TOD 16G8095 Go to Models 270, 800, and 810 - Time
of day (TOD) battery
HSL cables
on the HSL
ports
HSL cable HSL connection See the Type, model,
and part number list.
Go to HSL cables - Concurrent.
Figure 2. Model 270 system unit, processor features 22A7, 22A8, 22AA, 22AB, 23F4, 23F5, 2423,
2424, 2454
Notes:
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.
232 Hardware (Remove and Replace; Part Locations and Listings)
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