post code master - the site for BIOS, POST & BEEP code information

Home | Products | View Cart | Contact Us

Zenith BIOS Post Codes

  • 00 - Booting the operating system
  • 01 - VGA check
  • 02 - MDA initialize
  • 03 - Initialize video
  • 05 - Set hard reset
  • 07 - Check ROM at E000
  • 08 - Check ROM shadow at F000
  • 09 - Remap video ROM at E000
  • 0C - CMOS RAM/8042 keyboard controller test
  • 0D - DMA controller test
  • 0E - DMA page register test
  • 0F - Test 64K base RAM
  • 10 - Test base memory
  • 11 - Second VGA unit
  • 12 - mono initialization
  • 13 - Real time clock/CMOS RAM test
  • 15 - CPU register test
  • 16 - CPU addition test
  • 17 - Real time clock/8042 keyboard controller test
  • 18 - Enter protected mode
  • 19 - Testing memory
  • 1A - Test extended memory
  • 1B - Leaving protected mode
  • 1C - Testing system board
  • 1D - Testing system board
  • 1E - Testing system board
  • 1F - Bus sizing
  • 20 - Set BIOS data area
  • 21 - Testing DMA controller
  • 22 - checking C800 for ROM
  • 24 - Testing base memory
  • 25 - 8042 keyboard controller test
  • 26 - 8042 keyboard controller test
  • 27 - 8042 keyboard controller test
  • 28 - Memory parity test
  • 29 - Programmable interrupt timer test
  • 2A - Testing floppy disk drive(s)
  • 2B - Testing floppy drive controller and drive(s)
  • 2C - Testing hard disk controller and drive(s)
  • 2D - Checking CMOS settings
  • 2E - Soft configuration
  • 30 - Checking adapter ROM's
  • 31 - Checking CMOS settings
  • 32 - Enabling interrupts
  • 33 - Soft configuration
  • 34 - Soft configuration
  • 35 - Jump to boot code
Home | Products | Contact Us | View Cart | © 2012 Microsystems Development Tech. Inc.