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| 6 Technical Reference | |
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| Diagnostic LED Decoder |
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Post |
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G=Green,R=Red,A=Amber | Description |
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Code |
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| MSB |
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| LSB |
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8Dh | A | G | Off | G | OEM Patch 9. | |
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8Dh | A | G | Off | G | Set Printer | |
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8Dh | A | G | Off | G | Init FDD Devices: Resetting the | |
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| hard disk controller next. | |
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95h | R | G | Off | A | Lock out PS/2 keyboard/mouse if | |
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| unattended start is enabled. | |
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92h | R | Off | G | R | Option ROM Scan. | |
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98h | A | Off | Off | R | Init Boot Devices: The adapter | |
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| ROM had control and has now | |
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| returned control to BIOS POST. | |
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| Performing any required | |
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| processing after the option ROM | |
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| returned control. | |
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9Bh | A | Off | G | A | Float Processor Initialize: | |
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| Performing any required | |
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| initialization before the | |
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| coprocessor test next. | |
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9Eh | A | G | G | R | Enable Interrupts 0,1,2: Checking | |
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| the extended keyboard, | |
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| keyboard ID, and NUM Lock key | |
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| next. Issuing the keyboard ID | |
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| command next. | |
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A2h | R | Off | A | Off | Report second set of POST errors | |
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| To Error messager. | |
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86h | R | G | G | Off | Prepare And Run Setup: Error | |
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| manager displays and logs POST | |
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| errors. Waits for user input for | |
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| certain errors. Execute setup. | |
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8Bh | A | Off | G | G | Set Base Expansion Memory Size. | |
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