Service Manual
Troubleshooting and Diagnostics
3-25
Beep Codes
POST Description
3-1-3-2
Enable Non-Maskable Interrupts (NMIs)
3-1-3-3
Initialize Extended BIOS Data Area
3-1-3-4
Test and initialize PS/2 mouse
3-1-4-1
Initialize floppy controller
3-1-4-4
Determine number of ATA drives (optional)
3-2-1-1
Initialize hard-disk controllers
3-2-1-2
Initialize local-bus hard-disk controllers
3-2-1-3
Jump to UserPatch2
3-2-1-4
Build MPTABLE for multi-processor boards
3-2-2-2
Install CD-ROM for boot
3-2-2-3
Clear huge ES segment register
3-2-2-4
Fix up Multi Processor table
3-2-3-2
Check for SMART Drive (optional)
3-2-3-3
Shadow option ROMs
3-2-4-1
Set up Power Management
3-2-4-2
Initialize security engine (optional)
3-2-4-3
Enable hardware interrupts
3-2-4-4
Determine number of ATA and SCSI drives
3-3-1-1
Set time of day
3-3-1-3
Check key lock
3-3-2-1
Initialize typematic rate
3-3-3-1
Erase F2 prompt
3-3-3-3
Scan for F2 keystroke
3-3-4-1
Enter SETUP
3-3-4-3
Clear Boot flag
3-4-1-1
Check for errors
3-4-1-2
Inform ROMPilot about the end of POST
3-4-1-3
POST done—prepare to boot OS
3-4-2-2
Terminate QuietBoot (optional)
3-4-2-3
Check password (optional)
3-4-2-4
Initialize ACPI BIOS
3-4-3-2
Prepare Boot
3-4-3-3
Initialize SMBIOS
3-4-3-4
Initialize PnP Option ROMs
3-4-4-1
Clear parity checkers
3-4-4-2
Display MultiBoot menu
3-4-4-3
Clear screen (optional)