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AST RESEARCH, INC. TECHNICAL BULLETIN #0776 09-15-92
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UPGRADING THE BRAVO-II 486/XX BIOS TO VERSION 1.22
PROBLEM: When upgrading the system BIOS to version 1.22, the auto drive
type is not saved.
CAUSE: Version 1.22 does not have an option to enable or disable the
shadow BIOS area. This area is where the auto drive type (97)
is stored.
SYSTEMS
AFFECTED: All Bravo-II 486/XX
SOLUTION: Before upgrading the BIOS, enable the shadow BIOS region, so
the auto option is supported.