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Normal Port 80
Codes
Beeps
68
6A
6C
6E
70
72
74
76
7A
74
76
7A
7C
7E
80
82
85
86
88
8A
8C
90
91
92
93
94
95
96
98
1-2
9A
9C
9E
A0
A2
A4
A8
AA
AC
AE
B0
B2
B4
1
Error
Enable external and processor caches
Display external cache size
Display shadow message
Display non-disposable segments
Display error messages
Check for configuration errors
Test real-time clock
Check for keyboard errors
Test for key lock on
Test real-time clock
Check for keyboard errors
Test for key lock on
Set up hardware interrupt vectors
Test coprocessor if present
Detect and install external RS232 ports
Detect and install external parallel ports
Initialize PC-compatible PnP ISA devices
Re-initialize on board I/O ports
Initialize BIOS Data Area
Initialize Extended BIOS Data Area
Initialize floppy controller
Initialize hard disk controller
Initialize local bus hard disk controller
Jump to UserPatch2
Build MPTABLE for multi-processor boards
Disable A20 address line
Install CD-ROM for boot
Clear huge ES segment register
Search for option ROMs. One long, two short beeps on checksum failure
Shadow option ROMs
Set up Power Management
Enable hardware interrupts
Set time of day
Check key lock
Initialize typematic rate
Erase F2 prompt
Scan for F2 key stroke
Enter SETUP
Clear in-POST flag
Check for errors
POST done – prepare to boot Operating System
One short beep before boot
S o l v i n g p r o b l e m s
FT5000 HANDBOOK
8/9
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