Intel AC450NX Product Manual page 274

AC450NX Rack Server System Product Guide
Port 80h Codes (continued)
CP Beeps
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
B5
B6
B8
BC
BE
BF
C0
D0
D2
D4
272
Reason
Detect and install external RS232 ports
Detect and install external parallel ports
Initialize PC-compatible PnP ISA devices
Reinitialize onboard 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 multiprocessor boards
Disable A20 address line
Install CD ROM for boot
Clear huge ES segment register
Search for option ROMs; one long beep and 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
Display MultiBoot menu
Check password (optional)
Clear global descriptor table
Clear parity checkers
Clear screen (optional)
Check virus and backup reminders
Try to boot with INT 19
Interrupt handler error
Unknown interrupt error
Pending interrupt error
continued