Maintenance Object Repair Procedures
555-233-123
10-1404 Issue 4 May 2002
Flash Memory Checksum Test (#86)
This test is a nondestructive test. The test computes the checksum of the
DEFINITY Generic 3 software and firmware loaded from the Software Memory
Card (SOFTWARE MEM-CARD). A failure of this test indicates corruption of the
Flash Memory. However, this failure does NOT always indicate a hardware
problem. DO NOT REPLACE the Processor circuit pack when this is the only
error. A system restart via the reset system 4 command starting with inserting the
Software Memory Card for this system followed by re-inserting the Translation
Memory Card memory card should be implemented at the customer’s earliest
convenience.
In a High or Critical Reliability system, an upgrade software command can be
used with the Software Memory Card for the system followed by re-inserting the
Translation Memory Cards as directed by this upgrade procedure. This command
performs the same operation as the reset system 4 command but is much less
service-disruptive.
1 - 7 FAIL If the system can still provide service, this indicates that the
Processor circuit pack has a problem with memory or the
RISC processor, but can still function.
At the customers convenience run the destructive “reset
system 4” command to boot the system and write to all of
the memory locations. This will clear transient parity errors
and test for permanent parity errors. This complete memory
testing during initialization will cause “SPE DOWN” if a
parity error is detected and the PROCR circuit pack should
be replaced.
If parity errors reoccur within several weeks, record the
error code information indicating which memory modules
failed, together with the extended interval between failures.
After recording the information and at the customers
convenience replace the PROCR circuit pack. (Note that if
you replace the Processor circuit pack, you need to obtain a
new license file.)
PASS The Memory is healthy.
Table 10-523. TEST #85 Read All Memory Test — Continued
Error Code
Te s t
Result Description/Recommendation
Continued on next page
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