BIOS
3.13 BIOS Beep Sound code list
Beep Sound | Message |
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|
1 short (Beep) | System booting is normally |
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2 short (Beep) | CMOS setting error |
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1 long - 1 short (Beep) | DRAM error |
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1 long - 2 short (Beep) | Display card or monitor connected error |
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1 long - 3 short (Beep) | Keyboard error |
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1 long - 9 short (Beep) | ROM error |
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Long (Beep) continuous | DRAM hasn’t inset correctly |
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Short (Beep) continuous | POWER supply has problem |
3.14 BIOS memory mapping
Address | Device Description |
|
|
E000:0000h - F000:FFFFh | System BIOS Area |
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D000:2000h - D000:FFFFh | Free space |
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D000:0000h - D000:1FFFh | LAN ROM |
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C000:E000h - CF00:FFFFh | Free space |
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C000:0000h - C000:DFFFh | VGA BIOS |
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A000:0000h - B000:FFFFh | VGA RAM |
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|
0000:0000h - 9000:FFFFh | DOS 640K |
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