IBM 6150 Hardware Maintenance Manual page 111

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TNL SN20-9850 (05-87) to 75X0152 or 75X0166
F6x
FRU: 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 1 MB Memory Expansion Option, use SRA number 12x.
For 2MB Memory Expansion Option, use SRA number 15x.
For 4MB Memory Expansion Option, use SRA number 16x.
For 4MB Fast Memory Expansion Option, use SRA number
IDx.
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
3-0020-42 Service Manual
FRU: 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 numbers Alx and A2x.

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