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Chapter 4 87
4-2-4-3 DEh Keyboard controller failure. • Check the keyboard.
• Check the keyboard controller.
• Check the main board.
4-3-1-3 E2h Initialize the chipset. • Check the main board.
4-3-1-4 E3h Initialized refresh counter. • Check the main board.
4-3-2-1 E4h Check for Forced Flash. • Check the main board.
4-3-2-2 E5h Check HW status of ROM. • Check the main board.
4-3-2-3 E6h BIOS ROM is OK. • Check the main board.
4-3-2-4 E7h Do a complete RAM test. • Check the system memory.
• Check the main board.
4-3-3-1 E8h Do OEM initialization. • Check the main board.
4-3-3-2 E9h Initialize interrupt
controller.
• Treat as an expansion card problem.
• Check the main board.
4-3-3-3 EAh Read in bootstrap code. • Check the HDD.
• Check the floppy disk drive.
• Check the main board.
4-3-3-4 EBh Initialize all vectors. • Treat as an expansion card problem.
• Check the main board.
4-3-4-1 ECh Boot the Flash program. • Check the main board.
4-3-4-2 EDh Initialize the boot device. • Check the HDD.
• Check the floppy disk drive(s).
• Check the main board.
4-3-4-3 EEh Boot code was read OK. • Check the HDD.
• Check the floppy disk drive(s).
• Check the main board.
Beep Code Post Code Description What to Check (Recommended)