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B006
Processor Reference Codes
(B4xx) System Processor Reference Codes
1. Look at the four rightmost characters of the SRC (data display for function 11-3).
These four characters are the unit reference code.
Note: Function 11 provides the primary SRC. Function 12 is an informational status
Press Enter to view the SRC. If no SRC is present, press Enter to continue to the
next function.
Record the SRC information for error reporting. As an example, the system
processor detected a failure.
a. Look at the four rightmost characters of the operator panel display for function
b. Look at functions 14 and 15 for more reference codes. Each is four characters
c. Record Word 19. Word 19 can contain a CCIN code that helps differentiate
2. Find the unit reference code in the following table.
Attention: When viewing the following tables, the probability class is defined are as
follows:
v Mandatory: These FRUs are to be replaced first, followed by an IPL with only these
FRUs replaced. When more than one FRU is called out with mandatory probability,
then all FRUs identified must be replaced as a group before IPLing the system.
v High: These FRUs are to be replaced second, one-at-a-time with a system IPL
between each FRU replacement.
v Low: These FRUs are to be replaced last, one-at-a-time with a system IPL between
each FRU replacement.
220
Service Guide
message only and not used. Functions 14 and 15 provide secondary
reference codes in addition to the primary SRC. Function 19 provides CCIN
information for FRU replacement. Function 13 provides status information for
service support use.
11. These four characters are the unit reference code.
in length. There may be from zero to four unit reference codes contained in
these words. For example:
Word 11 - B455 rrrr
Word 14 - rrrr rrrr
Word 15 - rrrr 0000
Word 19 - CCIN CCIN
This example shows a total of four reference codes for this failure. The rrrr
signifies the reference codes. Each reference code has only one FRU
associated with it. The CCIN is used to determine a failing FRU in some cases.
between some failing FRUs, such as memory cards or processor cards.
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