IBM 6151 Maintenance And Service Manual page 129

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F6x
Unidentified Memory Option
The program detected a failure within a memory option,
however the memory option type could not be determined.
Look at the memory option in the slot indicated by the x in
the SRA number to determine the type of memory option; then
use the SRA number given below for that type. If needed, see
Section 6.
For 1MB Memory Expansion Option, use SRA number l2x.
For 2MB Memory Expansion Option, use SRA number l5x.
For 4MB Memory Expansion Option, use SRA number l6x.
For 4MB Fast Memory Expansion Option, use SRA number
lDx.
For 8MB Fast Memory Expansion Option, use SRA number
lEx.
If the option is not listed above, it is not supported in this
manual.
F7x
Unidentified Drive Cable
The program detected a drive cable failure, however the cable
type could not be determined. Use the SRA numbers given
below.
See SRA number Alx.
(6/88) Problem Isolation Charts
3-0020-51

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