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4.677 bytes |
Service Hints & Tips |
Document ID: JBAR-3PLQ93 |
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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. |
CrossBrand - Flash BIOS corruption/dead system
Applicable to: World-Wide
Symptom:
Dead system after applying flash BIOS update.
Problem Isolation Aids:
It is possible to install flash BIOS for one machine type on a different machine type. For example, it is possible to install PC300 i486 flash BIOS onto a PC300 Pentium system and vice versa or install PC700 flash BIOS onto a VP-p system. Once the incorrect flash BIOS is installed and the machine is re-booted, the system board will no longer function. There is no field procedure to reinstall the correct flash. The system board must be replaced.
Fix:
If the flash diskette is not labeled, the most reliable method to determine what system it applies to is to view view the diskette volume label. The first 2 digits of the volume label define the code's applicable machine type.
The following table can be used to decode the flash code titles:-
AABCDDE.xxx
AA = Machine type or product code.
B = Release type.
C = Reserved.
DD = Level of Code.
E = Build stage.
xxx = File ship format .
PRODUCT CODE - MACHINE TYPE:
L6 = All models of 6382/S & 6387/T and all models of 6384/D except P-60.
L8 = 6381/SI 486SX.
L9 = 6381/SI 486DX.
Note:
L8 and L9 are provided on the same diskette. The flash install program will install the appropriate code for the system.
LA = 6384/D P-60 PENTIUM.
LD = VP-p; 6472/P, 6482/P, 6484/P, 6492/P, 6494/P.
LE = PC300 i486; 6571, 6573, 6581, 6583.
LP = PC300 Pentium; 6576, 6586
N1 = PC300 Pentium; 6575, 6585.
N1 = PC700 PCI/ISA; 6875, 6885.
N2 = PC700 PCI/MC; All models of 6876 and 6886.
RELEASE TYPE (B)
B = OEM flash/BIOS/POST update diskette.
E = EPROM/early flash BIOS update diskette.
J = flash/POST/BIOS update diskette.
K = flash/POST/BIOS update code.
LEVEL OF BUILD (DD)
Includes all changes from previous levels.
BUILD STAGE (E)
A = official build.
FILE SHIP FORMAT (xxx)
IMG = diskett image format.
DTA = diskette image EMT format.
DSK = Diskette LOADDSKF / LOADDISK format.
SAS KEYWORDS:
PSVP PS/VP PSY2 PC300
PC700 D/T6381 D/T6382 D/T6384
D/T6787 D/T6472 D/T6482 D/T6484
D/T6492 D/T6494 D/T6571 D/T6573
D/T6575 D/T6581 D/T6583 D/T6585
D/T6875 D/T6876 D/T6885 D/T6886
DEAD HUNG D/T8640 D/T8641
D/T9595A 8640 8641 SERVER 500
SERVER 300 SERVER 720 D/T8642 8642
IBMPC IDENTIFICATION ID FLASH TYPES
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Search Keywords |
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Hint Category |
BIOS | |
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Date Created |
28-09-95 | |
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Last Updated |
24-06-98 | |
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Revision Date |
22-06-2001 | |
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Brand |
IBM PC | |
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Product Family |
Various | |
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Machine Type |
Various | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
H127334 | |
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Reverse Doclinks |