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4.809 bytes |
Service Hints & Tips |
Document ID: RMIE-3AQFQT |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
PCServer720 - Traps or hangs
Applicable to: World-Wide
Abstract
PCServer720 (133MHz or 166MHz) Traps or Hangs
Symptom
Only a very small number of systems will experience the exact symptoms described in this tip. Read and understand the entire tip before taking any action.
PC Server 720 systems with 133MHz or 166MHz processors may trap (Trap 002), hang, or experience a Non-maskable Interrupt (NMI).
Problem Isolation Aids
- The system is a PC Server 720 (8642) with one or more of the following processors installed:
FRU p/n Option p/n Description
----------------------------------------------------------------
75H9686 94G6055 133MHz Option I non-NetWare SMP
75H9688 94G6056 133MHz Option II
75H9690 94G6057 166MHz
76H0610 94G6057 166MHz
76H3545 94G6057 166MHz (Current 166MHz FRU)
Note: Option I card does NOT support NetWare SMP. Option II card supports all Network Operating Systems supported on the PC Server 720 using the device drivers from 720NOS.EXE.
Fix
Boot the diagnostic diskette version 1.11 or later and test the memory and processors. Refer to RETAIN Record H084333 for processor testing information.
Note: Versions 1.11 and later require BIOS level 09 or later for SIMM failure isolation. Refer to RETAIN Record H131754.
If the memory and processor tests complete without error, and replacing the memory card (FRU p/n71G0696) does not correct the trap/hang error, then inspect the processor card(s) as follows:
1. Locate the three digit date code (###) on the bar code:
Bar codes may have one of two formats:
.-----------------------------. .-----------------------------.
| |||||| ||| ||||||||||||||||| | |||||| ||| |||||||||||||||||
| | | |
| xxxxxxxxxxxJ11??###xxx | | Jxxx###xxx 06xxxxxxxx |
------------------------------- -------------------------------
2. Locate the cache chips at locations U6, U7, U8, and U9. Look for the IBM logo on the cache chips.
3. If the date code (###) is 966 thru 985 AND the cache chips have the IBM logo, then replace the processor card.
If Motorola and Micron Technology cache chips are located, or the Server is not experiencing these exact symptoms, then there is no reason to replace the processor card. Continue normal problem determination procedures to isolate the failing application or FRU.
Only 15 - 30 processor cards manufactured between June 1 through June 30, 1996 may have the suspect IBM cache chips.
SAS Keywords :
PSY2 PSY2ERR PSY2ADPT PSY2MEM
P/N75H9686 P/N75H9688 P/N75H9690 P/N76H0610
P/N76H3545 P/N94G6055 P/N94G6056 P/N94G6057
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Search Keywords |
Health | |
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Hint Category |
Lock-up/Hang, Retain | |
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Date Created |
23-10-96 | |
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Last Updated |
28-05-98 | |
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Revision Date |
27-05-99 | |
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Brand |
IBM PC Server | |
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Product Family |
PC Server 720 | |
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Machine Type |
8642 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
H134640 | |
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Reverse Doclinks |