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Service Hints & Tips |
Document ID: GSMH-39DC4M |
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IBM ValuePoint - Communication adapter failures
Applicable to: World-Wide
Symptom:
PS/Valuepoint 6381/Si 425SX & 433SX models may experience system hangs and/or communication failures with a 120Mb Quantum drive installed. Not all communication adapters are affected in this configuration.
Problem Isolation Aids:
If system hangs and/or communication failures are occurring in this configuration, proceed with the following isolation aids:
1.Verify the FRU part number of the system board. If the system board is FRU p/n52G7023 or FRU p/n52G7022, this tip applies. Proceed to the next step.
2.Verify that the latest level of the communication application is being used and properly setup according to the installation instructions provided with the application.
3.Verify that the flash BIOS level is at the current level.
4.Set the interrupt level (IRQ) of the communication adapter to IRQ2, IRQ9, IRQ10 or IRQ11. These are recommended interrupt settings for communication adapters in the 6381/Si. If the adapter has a configuration setting for "edge triggered" interrupts, select it and re-test the adapter.
5.Perform all PS/Valuepoint advanced diagnostics. Verify proper execution of these diagnostics and resolve any failures before proceeding to the next step.
6.Perform all adapter diagnostics. Resolve any failures observed when performing diagnostics on the failing communication adapter(s).
7.Remove any adapters that are not necessary to recreate the failure.
8.Create a self booting diskette that will allow the operating system and the communication application to load successfully perform the following steps in sequence :-
a. Remove the hardfile cable from the system board. A POST error will be reported as a result of removing the cable. Enter the configuration utility, verify that the drive is missing from the configuration and then save the changes.
b. Boot the system with the self booting diskette.
c. Attempt to recreate the failure.
d. If the failure occurs with the hardfile cable disconnected, this tip does not apply.
e. If the failure does not occur and communication with the host establishes without errors, this tip does apply.
Fix:
If all of the above steps were followed precisely and no failure occurs in step "e" after removing the hardfile signal cable from the system board, an incompatibility may exist between the communication adapter and the 6381/Si.
In most cases this incompatibility can resolved by replacement of the system board with FRU p/n88G4127 (425SX model) or FRU p/n88G4126 (433SX model). If failures continue after the system board has been replaced, utilize normal problem determination procedures to isolate the failure.
Note:
Some problems are fixed by bus riser ass. # 88G4220. This part has in turn has been superseded by FRU 88G4178 which resolves several more compatibility problems.
SAS KEYWORDS:
PSVP PSY2 PS/VP 6381
PSVPDIAG PSY2DIAG PSVPERR PSY2ERR
PSVPBRD PSY2BRD VALUEPOINT PSY2COMM
PSVPCOMM PSVPPART PSY2PART IOR
I/O READ
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Hint Category |
General Information | |
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Date Created |
07-09-95 | |
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Last Updated |
30-03-98 | |
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Revision Date |
24-03-2000 | |
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Brand |
IBM PC | |
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Product Family |
ValuePoint | |
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Machine Type |
6472, 6482, 6492 | |
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Model |
all | |
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TypeModel |
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Retain Tip (if applicable) |
H026127 | |
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