Award PnP BIOS Post Codes
- 01 - Reserved
- 02 - Reserved
- 03 - Initialize EISA registers (EISA BIOS only)
- 04 - Reserved
- 05 - Keyboard controller self-tested
- 06 - Reserved
- 07 - Verify CMOS Read/Write
- 09 - OEM specific initialization; Configure Cyrix CPU register
- 0A - Issue CPU ID instruction; Initialize the first 32 interrupt vectors, initialize Int.'s 33 to 120, power management initialization
- 0B - PnP initialization; verify the RTC time, detect bad battery, read the CMOS data into the BIOS stack area, assign I/O and memory for any PCI devices
- 0C - Initialization of BIOS data area
- 0D - Program some of chipset's value; Measure the CPU for display, initialize the video
- 0E - Initialize APIC (multiprocessor BIOS only); Show startup screen message
- 0F - DMA channel 0 tested
- 10 - DMA channel 1 tested
- 11 - DMA page registers tested
- 12 - Reserved
- 13 - Reserved
- 14 - Test 8254 0 counter 2
- 15 - Test 8259 interrupt mask bit for channel 1
- 16 - Test 8259 interrupt mask bit for channel 2
- 17 - Reserved
- 19 - Test 8259 functionality
- 1A - Reserved
- 1B - Reserved
- 1C - Reserved
- 1D - Reserved
- 1E - If an EISA NVM
- 1F - 29 Reserved
- 30 - Get size of base and extended memory
- 31 - Test base and extended memory, Test base memory from 256K to 640K , test extended memory above 1MB
- 32 - Test all on-board super I/O ports
- 33 - Reserved
- 3A - Reserved
- 3B - Reserved
- 3C - Set flag to allow CMOS setup utility
- 3D - Install PS/2 mouse
- 3E - Try to turn on level 2
- 3F - Reserved
- 40 - Reserved
- 41 - Initialize floppy drive controller
- 42 - Initialize hard drive controller
- 43 - Initialize serial & parallel ports (PnP BIOS only)
- 45 - Initialize math coprocessor
- 46 - Reserved
- 47 - Reserved
- 48 - Reserved
- 49 - Reserved
- 4A - Reserved
- 4B - Reserved
- 4C - Reserved
- 4D - Reserved
- 4E - Show all error messages on screen
- 4F - Ask for password, if needed
- 50 - Write all CMOS values located in the BIOS stack back to CMOS
- 51 - Reserved
- 52 - Initialize all ISA ROM's; PCI initializations (PCI BIOS only), PnP initialization (PnP BIOS Only), setup shadow RAM, initialize power management
- 53 - If not PnP BIOS, initialize ports; Initialize time in BIOS data area
- 54 - Reserved
- 55 - Reserved
- 56 - Reserved
- 57 - Reserved
- 58 - Reserved
- 59 - Reserved
- 5A - Reserved
- 5B - Reserved
- 5C - Reserved
- 5D - Reserved
- 5E - Reserved
- 5F - Reserved
- 60 - Setup virus protection for the boot sector
- 61 - Try to turn on level 2 cache
- 62 - program numlock & typematic speed
- 63 - Boot system via Int 19h
- B0 - Unexpected interrupt in protected mode
- B1 - Unclaimed NMI occurred
- BE - Program defaults into chipset
- BF - Program remaining chipset values
- C0 - Init. all standard devices with defaults
- C1 - Auto detect on-board DRAM & cache
- C3 - Test first 26K DRAM
- C5 - Copy ROM BIOS to E000-FFFF
- FF - System booting