30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
=============================================================================
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AST RESEARCH, INC. TECHNICAL BULLETIN #0728 12-26-91
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=============================================================================
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AST BRAVO 486/25 VIDEO BIOS ERRORS DURING POST
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PROBLEM: When using a third party video card as the primary video in an
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AST Bravo 486/25, the following error message will be
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displayed during POST:
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"Cannot shadow video BIOS in shadow ram"
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"Press F1 key to continue or CTRL-ALT-ESC to setup"
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AFFECTED
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SYSTEMS: Bravo 486/25 system board with the following part number:
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202385-001
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CAUSE: System BIOS Rel 1.10 does not have the option to disable the
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shadow BIOS.
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SOLUTION: This problem has been resolved with release 1.20 of the system
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BIOS. This system BIOS consist of two chips, part number
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237801-003 and 237802-003 revision A. Customers experiencing
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the above problem should have the system BIOS upgraded.
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