Intel STL2 Server Motherboard BIOS Post Codes
- 02 - Verify Real Mode
- 04 - Get Processor type
- 06 - Initialize system hardware
- 08 - Initialize chipset registers with initial POST values
- 09 - Set in POST flag
- 0A - Initialize Processor registers
- 0B - Enable Processor cache
- 0C - Initialize caches to initial POST values
- 0E - Initialize I/O
- 0F - Initialize the local bus IDE
- 10 - Initialize Power Management
- 11 - Load alternate registers with initial POST values
- 12 - Restore Processor control word during warm boot
- 14 - Initialize keyboard controller
- 16 - BIOS ROM checksum
- 18 - 8254 timer initialization
- 1A - 8237 DMA controller initialization
- 1C - Reset Programmable Interrupt Controller
- 20 - Test DRAM refresh
- 22 - Test 8742 Keyboard Controller
- 24 - Set ES segment register to 4 GB
- 28 - Autosize DRAM, system BIOS stops execution here if the BIOS does not detect any usable memory DIMMs
- 2A - Clear 8 MB base RAM
- 2C - Base RAM failure, BIOS stops execution here if entire memory is bad
- 32 - Test Processor bus-clock frequency
- 34 - Test CMOS
- 35 - RAM Initialize alternate chipset registers
- 36 - Warm start shut down
- 37 - Reinitialize the chipset
- 38 - Shadow system BIOS ROM
- 39 - Reinitialize the cache
- 3A - Autosize cache
- 3C - Configure advanced chipset registers
- 3D - Load alternate registers with CMOS values
- 40 - Set Initial Processor speed new
- 42 - Initialize interrupt vectors
- 44 - Initialize BIOS interrupts
- 46 - Check ROM copyright notice
- 47 - Initialize manager for PCI Option ROMs
- 48 - Check video configuration against CMOS
- 49 - Initialize PCI bus and devices
- 4A - Initialize all video adapters in system
- 4B - Display QuietBoot screen
- 4C - Shadow video BIOS ROM
- 4E - Display copyright notice
- 50 - Display Processor type and speed
- 52 - Test keyboard
- 54 - Set key click if enabled
- 55 - USB initialization
- 56 - Enable keyboard
- 58 - Test for unexpected interrupts
- 5A - Display prompt 'Press F2 to enter SETUP'
- 5C - Test RAM between 512 and 640 k
- 60 - Test extended memory
- 62 - Test extended memory address lines
- 64 - Jump to UserPatch1
- 66 - Configure advanced cache registers
- 68 - Enable external and processor caches
- 6A - Display external cache size
- 6B - Load custom defaults if required
- 6C - Display shadow message
- 6E - Display non-disposable segments
- 70 - Display error messages
- 72 - Check for configuration errors
- 74 - Test real-time clock
- 76 - Check for keyboard errors
- 7A - Test for key lock on
- 7C - Set up hardware interrupt vectors
- 7D - Intelligent system monitoring
- 7E - Test coprocessor if present
- 82 - Detect and install external RS232 ports
- 85 - Initialize PC-compatible PnP ISA devices
- 86 - Re-initialize on board I/O ports
- 88 - Initialize BIOS Data Area
- 8A - Initialize Extended BIOS Data Area
- 8C - Initialize floppy controller
- 90 - Initialize hard disk controller
- 91 - Initialize local bus hard disk controller
- 92 - Jump to UserPatch2
- 93 - Build MPTABLE for multi-processor boards
- 94 - Disable A20 address line
- 95 - Install CD-ROM for boot
- 96 - Clear huge ES segment register
- 98 - Search for option ROMs. One long, two short beeps on checksum failure
- 9A - Shadow option ROMs
- 9C - Set up Power Management
- 9E - Enable hardware interrupts
- A0 - Set time of day
- A2 - Check key lock
- A4 - Initialize typematic rate
- A8 - Erase F2 prompt
- AA - Scan for F2 key stroke
- AC - Enter SETUP
- AE - Clear in-POST flag
- B0 - Check for errors
- B2 - POST done - prepare to boot Operating System
- B4 - 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
- E0 - Initialize chip set
- E1 - Initialize bridge
- E2 - Initialize processor
- E3 - Initialize timer
- E4 - Initialize system I/O
- E5 - Check forced recovery boot
- E6 - Validate checksum
- E7 - Go to BIOS
- E8 - Initialize processors
- E9 - Set 4 GB segment limits
- EA - Perform platform initialization
- EB - Initialize PIC and DMA
- EC - Initialize memory type
- ED - Initialize memory size
- EE - Shadow boot block
- EF - Test system memory
- F0 - Initialize interrupt services
- F1 - Initialize real time clock
- F2 - Initialize video
- F3 - Initialize beeper
- F4 - Initialize boot
- F5 - Restore segment limits to 64 KB
- F6 - Boot mini DOS
- F7 - Boot full DOS