Quick Start Manual

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Chapter 6: Troubleshooting
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Recovery boot codes
The table below lists Port-80 codes and explanations displayed during the
recovery boot process. Not all codes are associated with an audio tone (beep).
The check point (CP) column lists the message’s check point as seen by a port
80h card.
B4 1 One short beep before boot
B5 Display MultiBoot menu
B6 Check password, password is checked
before option ROM scan
B7 ACPI initialization
B8 Clear global descriptor table
BC Clear parity checkers
BE Clear screen (optional)
BF Check virus and backup reminders
C0 Try to boot with INT 19
C8 Forced shutdown
C9 Flash recovery
DO Interrupt handler error
D2 Unknown interrupt error
D4 Pending interrupt error
D6 Initialize option ROM error
D8 Shutdown error
DA Extended Block Move
DC Shutdown 10 error
CP Reason
E0 Initialize chip set
E1 Initialize bridge
CP Beeps Reason