Other Failure Indications - HP 340 Series Service Manual

Table 5-7. Thrn-On, Self-Test, and Boot Displayed Messages (cont.)
Displayed Message
HPXXXXX
DMA-CO
MC68030 Processor
MC68882 CoProcessor
RAM BBBBBBB Bytes
MEMORY FAILED AT HHHHHHHH
DATA PARITY ERROR AT HHHHHHHH
PARITY BIT ERROR AT HHHHHHHH
MEMORY GONE AT HHHHHHHH
XXXXX at SC
Remote Interface at SC
HP98265 (SCSI S 16)at SC
Other Failure Indications
'UNEXPECTED' Error Messages
Explanation and Procedure
Interface (HP XXXXX, or equivalent) identified. XXXXX refers
to the product number that would be displayed.
Processor board's DMA circuits identified.
MC68030 CPU identified.
MC68882 Floating-Point Co-processor identified.
BBBBBBB is the amount of RAM in bytes the self-test found
in the SPU.
Memory failed at hex address HHHHHHHH.
Replace the RAM board that has the failed memory address.
A parity error occurred with hex address HHHHHHHH.
Replace the RAM board that has the failed memory address.
A parity bit error occurred with hex address HHHHHHHH.
Replace the RAM board that has the failed memory address.
A read or write cycle was attempted at address HHHHHHHH
but no memory found at that address.
Replace the RAM board that has the failed memory address.
A circuit equivalent to an HP product (XXXXX) and type was
found at select code SC.
A remote interface was identified at select code SC.
SCSI identified as S (single-ended) and 16-bit DMA capable at
select code SC.
Several "UNEXPECTED" failure messages may be displayed at any time. Table 5-8 lists these
nlessages. The addresses 5 most significant digits are FFFFF so only the 3 least significant
digits (LSD) are used in the table. When a range of addresses is shown, each address in the
range is 6 addresses apart.
When an
~'UNEXPECTED"
failure message equates to an interrupt level, vectored interrupt,
or trap, the following situations normally exist:
• Interrupt level 1 through 7: Can happen at any time and are usually caused by an
interface set to the indicated interrupt level. If the error repeats, the interface should be
replaced.
• CPU traps: Usually occurs when the operating system is being used. A CPU trap
indicates something in the CPU didn't go right. If the error repeats, the processor board
should be replaced or use a fresh copy of the operating system.
• Other errors: Several things can cause these errors, either on the processor board on in an
interface circuit. If the error repeats, the processor board or interface should be replaced.
If messages are meaningless or garbled, something went wrong and can compound the
situation. Restart or cycle power to the SPU. If messages are still incoherent, the processor
board or another interface circuit may need to be replaced.
94 Trou bleshooting