OLIVETTI PS2 BIOS Post Codes
- 01 - Test CPU
- 02 - Check CMOS shutdown byte
- 03 - Initialize the PIC
- 04 - Test refresh
- 05 - Test CMOS/RTC periodic interrupt
- 06 - Test timer ratio
- 07 - Test first 64KB of RAM
- 08 - Test 8042 keyboard controller
- 09 - Test NMI
- 0A - Test 8254 PIT
- 0B - Test port 94h
- 0C - Test port 103h
- 0D - Test port 102h
- 0E - Test port 96h
- 0F - Test port 107h
- 10 - Blank the display
- 11 - Check the keyboard
- 12 - Test CMOS RAM battery
- 13 - Verify CMOS RAM checksum
- 14 - Verify extended CMOS RAM checksum
- 15 - Initialize system board and adapter
- 16 - Initialize and test RAM
- 17 - Test protected mode registers
- 18 - Test CMOS RAM shutdown byte
- 19 - Test CMOS protected mode
- 1A - Initialize video adapter ROM scan
- 1B - Test BIOS ROM checksum
- 1C - Test PIC #1
- 1D - Test PIC #2
- 1E - Initialize interrupt vectors
- 1F - Test CMOS RAM
- 20 - Test extended CMOS RAM
- 21 - Test CMOS real-time clock
- 22 - Test clock calendar
- 23 - Dummy checkpoint
- 24 - Test watchdog timer
- 25 - Test 64KB to 640KB RAM
- 26 - Configure lower 640KB RAM
- 27 - Test extended memory
- 28 - Initialize extended BIOS data segment and log POST error
- 29 - Configure memory above 1MB
- 2A - Dummy checkpoint
- 2B - Test RAM parity
- 2C - Test DMA page registers
- 2D - Test DMA controller registers
- 2E - Test DMA transfer-count register
- 2F - Initialize DMA controller
- 30 - Test PIO 61
- 31 - Test the keyboard
- 32 - Initialize keyboard typematic rate and delay
- 33 - Test auxiliary device
- 34 - Test advanced protected mode
- 35 - Configure parallel ports
- 36 - Configure 8250 serial ports
- 37 - Test and configure math co-processor
- 38 - Test and configure game-port adapter
- 39 - Configure and initialize hard disk
- 3A - Floppy-disk configuration
- 3B - Initialize ROM drivers
- 3C - Display total memory and hard drives
- 3D - Final initialization
- 3E - Detect and initialize parallel ports
- 3F - Initialize hard drive and controller
- 40 - Initialize math co-processor
- 42 - Initialize adapter ROM scan
- CC - Unexpected processor excerption occurred
- DD - Save DDNIL status
- EE - NMI handler shutdown
- FF - Call interrupt 19 boot loader