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84 Chapter 4
2-1-3-2 49h Initialize PCI bus and
devices.
• Treat as an expansion card problem.
• Check the serial port(s).
• Check the parallel port(s).
• Check the main board.
2-1-3-3 4Ah Initialize all video adapters
in system.
• Check the video card.
• Make sure the system memory is
working properly.
2-1-4-1 4Ch Shadow video BIOS ROM. • Check the expansion cards.
• Check the system memory.
• Check the main board.
2-1-4-3 4Eh Display copyright notice. • Check the video card.
• Check the main board.
2-2-1-1 50h Display CPU type and
speed.
• Check the video card.
2-2-1-3 52h Test keyboard. • Check the keyboard.
• Check the keyboard controller.
• Check the main board.
2-2-2-1 54h Set key click if enabled. • Check the keyboard.
• Check the keyboard controller.
• Check the main board.
2-2-2-3 56h Enable keyboard. • Check the keyboard.
• Check the keyboard controller.
• Check the main board.
2-2-3-1 58h Test for unexpected
interrupts.
• Treat as an expansion card problem.
• Check the main board.
2-2-3-3 5Ah Display prompt “Press F2
to enter SETUP”.
• Check the video card.
• Check the main board.
2-2-4-1 5Ch Test RAM between 512
and 640K.
• Check the system memory.
• Check the main board.
2-3-1-1 60h Test expanded memory. • Check the system memory.
• Check the main board.
2-3-1-3 62h Test extended memory
address lines.
• Check the system memory.
• Check the main board.
2-3-2-1 64h Jump to UserPatch1. • Check the main board.
2-3-2-3 66h Configure advanced cache
registers.
• Check the secondary cache.
• Check the processor.
• Check the main board.
2-3-3-1 68h Enable external and CPU
caches.
• Check the secondary cache.
• Check the processor.
• Check the main board.
2-3-3-2 69h Initialize SMI handler. • Check the main board.
2-3-3-3 6Ah Display external cache
size.
• Check the video card.
• Check the main board.
2-3-4-1 6Ch Display shadow message. • Check the video card.
• Check the main board.
2-3-4-3 6Eh Display non-disposable
segments.
• Check the video card.
• Check the main board.
Beep Code Post Code Description What to Check (Recommended)