BIOS POST Tone Error Codes What is all that beep, beep, supposed to mean? Last modified: ADVERTISE on COMPUTERCRAFT! LET US HELP YOU SELL YOUR COMPUTER RELATED ITEMS! E-mail aolsz@computercraft.com for more information This material is presented only as a description of how I go about working on a system. It is not meant to encourage unqualified personnel to attempt computer repair. In any event, you assume all responsibility and liability for injury or damage. This material may be reprinted by any non-commercial entities. Full credit must be given to the author. The authors name, address, e-mail address, phone numbers, web site, AND THIS NOTICE must appear with any distributions. The document may not be edited, condensed, annotated, or modified in any way. Any translations must state that fact and the translators name must be listed. COPYRIGHT 1996 Anthony Olszewski 470 Grand St. Jersey City, NJ 07302 201-795-0909 201-946-1178 aolsz@computercraft.com COMPUTERCRAFT Web page: http://www.computercraft.com AMI BIOS Tone POST Codes - Fatal Errors TONE CONDITION 1 short DRAM refresh 2 short Parity circuit 3 short Base 64K RAM 4 short System timer 5 short Processor 6 short Keyboard controller gate A20 7 short Virtual mode exception 8 short Display memory read/write test 9 short ROM BIOS checksum 10 short CMOS shutdown read/write 11 short Cache memory AMI BIOS Tone POST Codes - Non-Fatal Errors TONE CONDITION 1 long, 3 short Conventional/extended memory 1 long, 8 short Display/retrace test Phoenix BIOS Tone POST Codes - Fatal Errors TONE CONDITION None CPU register test None First 64K RAM test None Interrupt vector loading proceeding None CMOS power failure/checksum calculation None Display configuration validation proceeding None Display running with video ROM None Display functional None Mononchrome display functional None CGA display functional 1-1-3 CMOS write/read 1-1-4 ROM BIOS checksum 1-2-1 Programmable interval timer 1-2-2 DMA Initialization 1-2-3 DMA page register write/read 1-3-1 RAM refresh verification 1-3-3 First 64K RAM chip or data line 1-3-4 First 64K RAM odd/even logic 1-4-1 Address line first 64K RAM 1-4-2 Parity failure first 64K RAM 2-1-1 Bit 0, first 64K RAM 2-1-2 Bit 1, first 64K RAM 2-1-3 Bit 2, first 64K RAM 2-1-4 Bit 3, first 64K RAM 2-2-1 Bit 4, first 64K RAM 2-2-2 Bit 5, first 64K RAM 2-2-3 Bit 6, first 64K RAM 2-2-4 Bit 7, first 64K RAM 2-3-1 Bit 8, first 64K RAM 2-3-2 Bit 9, first 64K RAM 2-3-3 Bit 10, first 64K RAM 2-3-4 Bit 11, first 64K RAM 2-4-1 Bit 12, first 64K RAM 2-4-2 Bit 13, first 64K RAM 2-4-3 Bit 14, first 64K RAM 2-4-4 Bit 15, first 64K RAM 3-1-1 Slave DMA register 3-1-2 Master DMA register 3-1-3 Master interrupt mask register 3-1-4 Slave interrupt mask register 3-2-4 Keyboard controller 3-3-4 Display initialization 3-4-1 Display retrace 3-4-2 Search for video ROM proceeding Phoenix BIOS POST Tone Codes - Non-Fatal Errors TONE CONDITION 4-2-1 Timer tick interrupt test 4-2-2 Shutdown test 4-2-3 Gate A20 Failure 4-2-4 Unexpected interrupt in protected moe 4-3-1 RAM test (address failure >FFFFh) 4-3-3 Interval timer channel 2 4-3-4 Real time clock 4-4-1 Serial Port 4-4-2 Parallel Port 4-4-3 Math Co-processor test 1-1-2* System board select 1-1-3* Extender CMOS RAM *audio code pattern preceded by low pitched tone IBM POST Tone Codes TONE CONDITION NONE System board, power supply 1 short System passed all tests 2 short Display error continuous System board, power supply 1 long, 1 short System board 1 long, 2 short Video adapter 1 long, 3 short EGA 3 long 3270 keyboard card Return to COMPUTERCRAFT main menu METRO COMPUTER REPAIR 470 GRAND STREET, JERSEY CITY, NJ 07303 Near NJ TURNPIKE EXIT 14C (GRAND - MONTGOMERY) About 5 blocks from the GROVE STREET PATH subway station 201-946-1178 or 201-795-0909 Apartment for rent - Jersey City Duplex 3br, 2 bath, Laundry room $1085 (includes heat & hot water) 201-946-1178 or 201-795-0909 or e-mail aolsz@computercraft.com