8170 N/B MAINTENANCE
7.2 Error codes :
Following is a list of error codes in sequent display on the PIO debug board.
Code | POST Routine Description |
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30h | Special init of keyboard ctlr |
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31h | Test if keyboard Present |
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32h | Test keyboard Interrupt |
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33h | Test keyboard command byte |
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34h | Test, blank and count all RAM |
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35h | Protected mode entered safely(2) |
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36h | RAM test complete |
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37h | Protected mode exit successful |
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38h | Update output port |
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39h | Setup cache controller |
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3Ah | Test if 18.2Hz periodic working |
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3Bh | Test for RTC ticking |
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3Ch | Initialize the hardware vectors |
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3Dh | Search and init the mouse |
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3Eh | Update NUMLOCK status |
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3Fh | Special init of COMM and LPT ports |
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Code | POST Routine Description |
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40h | Configure the COMM and LPT ports |
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41h | Initialize the floppies |
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42h | Initialize the hard disk |
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43h | Initialize option ROMs |
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44h | OEM’s init of power management |
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45h | Update NUMLOCK status |
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46h | Test for coprocessor installed |
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47h | OEM functions before boot |
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48h | Dispatch to operate system boot |
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49h | Jump into bootstrap code |
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