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AST RESEARCH, INC. TECHNICAL BULLETIN # 0937 5-12-94
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BRAVO LC2 AND CABLETRON LOCKING UP, AND FLOPPY PROBLEM
PROBLEM: Bravo LC2 system intermittently locks up while in Windows, with
Banyan Vines, and generates the following message at boot:
12.03 Floppy adapter or controller failure
or
11.13 Floppy drive type mismatch, please run system setup
(++) to correct the problem
CAUSE: The super I/O controller (SMC 37C651) on the Bravo LC2 system
board fails to initialize.
SYSTEMS
AFFECTED: All models of Bravo LC2 systems, with a Cabletron Ethernet
10Base-T board installed.
AST REVISION
PART NUMBER DESCRIPTION LEVEL
501196-XXX B4-25S/3 2 MB LC2 115V All
501233-XXX B4-33S/3 2 MB LC2 115V All
501197-XXX B4-33S/123W 4 MB LC2 115V All
501198-XXX B4-50D/3 2 MB LC2 115V All
501199-XXX B4-66D/3 2 MB LC2 115V All
SOLUTION: Upgrade the Bravo LC2 system board with rev. #13 or higher
(see FCN 0121). It is also recommended to upgrade the
Cabletron Ethernet board to rev. #5 or higher.
CAUTION: In no case will AST Research, Inc. be liable for damage to the
system or loss of data caused by improper or faulty installation
of this system board.