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Beep Code | Post Code | Description |
| What to Check (Recommended) |
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C0H | Try to boot with INT 19. | • | Check the HDD. | |
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| • | Check the floppy disk drive(s). |
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| • | Check the main board. |
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D0H | Interrupt handler error. | • | Treat as an expansion card problem. | |
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| • | Check the main board. |
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D2h | Unknown interrupt. | • | Treat as an expansion card problem. | |
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| • | Check the main board. |
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D4h | Pending interrupt error. | • | Treat as an expansion card problem. | |
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| • | Check the main board. |
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D6h | Initialize option ROM | • | Check the main board. | |
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| error. |
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D8h | Shutdown error. | • | Check the main board. | |
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DAh | Extended Block Move. | • | Check the main board. | |
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DCh | Shutdown error. | • | Check the main board. | |
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DEh | Keyboard controller | • | Check the keyboard. | |
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| failure. | • | Check the keyboard controller. |
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| • | Check the main board. |
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E2h | Initialize the chipset. | • | Check the main board. | |
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E3h | Initialized refresh | • | Check the main board. | |
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| counter. |
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E4h | Check for Forced Flash. | • | Check the main board. | |
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E5h | Check HW status of ROM. | • | Check the main board. | |
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E6h | BIOS ROM is OK. | • | Check the main board. | |
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E7h | Do a complete RAM test. | • | Check the system memory. | |
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| • | Check the main board. |
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E8h | Do OEM initialization. | • | Check the main board. | |
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E9h | Initialize interrupt | • | Treat as an expansion card problem. | |
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| controller. | • | Check the main board. |
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EAh | Read in bootstrap code. | • | Check the HDD. | |
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| • | Check the floppy disk drive. |
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| • | Check the main board. |
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EBh | Initialize all vectors. | • | Treat as an expansion card problem. | |
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| • | Check the main board. |
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ECh | Boot the Flash program. | • | Check the main board. | |
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EDh | Initialize the boot device. | • | Check the HDD. | |
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| • | Check the floppy disk drive(s). |
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| • | Check the main board. |
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EEh | Boot code was read OK. | • | Check the HDD. | |
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| • | Check the floppy disk drive(s). |
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| • | Check the main board. |
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92 | Chapter 4 |