AMI BIOS BEEP CODES

Beep Code
 Descriptions
 
1 short
 DRAM refresh failure
 
2 short
 Parity circuit failure
 
3 short
 Base 64K RAM failure
 
4 short
 System timer failure
 
5 short
 Process failure
 
6 short
 Keyboard controller Gate A20 error
 
7 short
 Virtual mode exception error
 
8 short
 Display memory Read/Write test failure
 
9 short
 ROM BIOS checksum failure
 
10 short
 CMOS shutdown Read/Write error
 
11 short
 Cache Memory error
 
1 long, 3 short
 Conventional/Extended memory failure
 
1 long, 8 short
 Display/Retrace test failed
 

AWARD BIOS BEEP CODES

The following are Award BIOS Beep Codes that can occur. However because of the wide variety of different computer manufacturers with this BIOS the beep codes may vary.

Beep Code
 Description
 
1 long, 2 short
 Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information
 
Any other beep(s)
 RAM problem.
 

If any other correctable hardware issues the BIOS will display a message.

IBM BIOS

The following are IBM BIOS Beep Codes that can occur. However because of the wide variety of models shipping with this BIOS the beep codes may vary.

Beep Code
 Description
 
No Beeps
 No Power, Loose Card, or Short.
 
1 Short Beep
 Normal POST, computer is ok.
 
2 Short Beep
 POST error, review screen for error code.
 
Continuous Beep
 No Power, Loose Card, or Short.
 
Repeating Short Beep
 No Power, Loose Card, or Short.
 
One Long and one Short Beep
 Motherboard issue.
 
One Long and Two short Beeps
 Video (Mono/CGA Display Circuitry) issue.
 
One Long and Three Short Beeps.
 Video (EGA) Display Circuitry.
 
Three Long Beeps
 Keyboard / Keyboard card error.
 
One Beep, Blank or Incorrect Display
 Video Display Circuitry.
 

MACINTOSH STARTUP TONES

TONES
 ERROR
 
Error Tone. (two sets of different tones)
 Problem with logic board or SCSI bus.
 
Startup tone, drive spins, no video
 Problem with video controller.
 
Powers on, no tone.
 Logic board problem.
 
High Tone, four higher tones.
 Problem with SIMM.
 

 

 

 

 

PHOENIX BIOS BEEP CODES

The following is for PHOENIX BIOS Q3.07 OR 4.X

Beep Code
 Description / What to Check
 
1-1-1-3
 Verify Real Mode.
 
1-1-2-1
 Get CPU type.
 
1-1-2-3
 Initialize system hardware.
 
1-1-3-1
 Initialize chipset registers with initial POST values.
 
1-1-3-2
 Set in POST flag.
 
1-1-3-3
 Initialize CPU registers.
 
1-1-4-1
 Initialize cache to initial POST values.
 
1-1-4-3
 Initialize I/O.
 
1-2-1-1
 Initialize Power Management.
 
1-2-1-2
 Load alternate registers with initial POST values.
 
1-2-1-3
 Jump to UserPatch0.
 
1-2-2-1
 Initialize keyboard controller.
 
1-2-2-3
 BIOS ROM checksum.
 
1-2-3-1
 8254 timer initialization.
 
1-2-3-3
 8237 DMA controller initialization.
 
1-2-4-1
 Reset Programmable Interrupt Controller.
 
1-3-1-1
 Test DRAM refresh.
 
1-3-1-3
 Test 8742 Keyboard Controller.
 
1-3-2-1
 Set ES segment to register to 4 GB.
 
1-3-3-1
 28 Autosize DRAM.
 
1-3-3-3
 Clear 512K base RAM.
 
1-3-4-1
 Test 512 base address lines.
 
1-3-4-3
 Test 512K base memory.
 
1-4-1-3
 Test CPU bus-clock frequency.
 
1-4-2-4
 Reinitialize the chipset.
 
1-4-3-1
 Shadow system BIOS ROM.
 
1-4-3-2
 Reinitialize the cache.
 
1-4-3-3
 Autosize cache.
 
1-4-4-1
 Configure advanced chipset registers.
 
1-4-4-2
 Load alternate registers with CMOS values.
 
2-1-1-1
 Set Initial CPU speed.
 
2-1-1-3
 Initialize interrupt vectors.
 
2-1-2-1
 Initialize BIOS interrupts.
 
2-1-2-3
 Check ROM copyright notice.
 
2-1-2-4
 Initialize manager for PCI Options ROMs.
 
2-1-3-1
 Check video configuration against CMOS.
 
2-1-3-2
 Initialize PCI bus and devices.
 
2-1-3-3
 Initialize all video adapters in system.
 
2-1-4-1
 Shadow video BIOS ROM.
 
2-1-4-3
 Display copyright notice.
 
2-2-1-1
 Display CPU type and speed.
 
2-2-1-3
 Test keyboard.
 
2-2-2-1
 Set key click if enabled.
 
2-2-2-3
 56 Enable keyboard.
 
2-2-3-1
 Test for unexpected interrupts.
 
2-2-3-3
 Display prompt "Press F2 to enter SETUP".
 
2-2-4-1
 Test RAM between 512 and 640k.
 
2-3-1-1
 Test expanded memory.
 
2-3-1-3
 Test extended memory address lines.
 
2-3-2-1
 Jump to UserPatch1.
 
2-3-2-3
 Configure advanced cache registers.
 
2-3-3-1
 Enable external and CPU caches.
 
2-3-3-3
 Display external cache size.
 
2-3-4-1
 Display shadow message.
 
2-3-4-3
 Display non-disposable segments.
 
2-4-1-1
 Display error messages.
 
2-4-1-3
 Check for configuration errors.
 
2-4-2-1
 Test real-time clock.
 
2-4-2-3
 Check for keyboard errors
 
2-4-4-1
 Set up hardware interrupts vectors.
 
2-4-4-3
 Test coprocessor if present.
 
3-1-1-1
 Disable onboard I/O ports.
 
3-1-1-3
 Detect and install external RS232 ports.
 
3-1-2-1
 Detect and install external parallel ports.
 
3-1-2-3
 Re-initialize onboard I/O ports.
 
3-1-3-1
 Initialize BIOS Data Area.
 
3-1-3-3
 Initialize Extended BIOS Data Area.
 
3-1-4-1
 Initialize floppy controller.
 
3-2-1-1
 Initialize hard-disk controller.
 
3-2-1-2
 Initialize local-bus hard-disk controller.
 
3-2-1-3
 Jump to UserPatch2.
 
3-2-2-1
 Disable A20 address line.
 
3-2-2-3
 Clear huge ES segment register.
 
3-2-3-1
 Search for option ROMs.
 
3-2-3-3
 Shadow option ROMs.
 
3-2-4-1
 Set up Power Management.
 
3-2-4-3
 Enable hardware interrupts.
 
3-3-1-1
 Set time of day.
 
3-3-1-3
 Check key lock.
 
3-3-3-1
 Erase F2 prompt.
 
3-3-3-3
 Scan for F2 key stroke.
 
3-3-4-1
 Enter SETUP.
 
3-3-4-3
 Clear in-POST flag.
 
3-4-1-1
 Check for errors
 
3-4-1-3
 POST done--prepare to boot operating system.
 
3-4-2-1
 One beep.
 
3-4-2-3
 Check password (optional).
 
3-4-3-1
 Clear global descriptor table.
 
3-4-4-1
 Clear parity checkers.
 
3-4-4-3
 Clear screen (optional).
 
3-4-4-4
 Check virus and backup reminders.
 
4-1-1-1
 Try to boot with INT 19.
 
4-2-1-1
 Interrupt handler error.
 
4-2-1-3
 Unknown interrupt error.
 
4-2-2-1
 Pending interrupt error.
 
4-2-2-3
 Initialize option ROM error.
 
4-2-3-1
 Shutdown error.
 
4-2-3-3
 Extended Block Move.
 
4-2-4-1
 Shutdown 10 error.
 
4-3-1-3
 Initialize the chipset.
 
4-3-1-4
 Initialize refresh counter.
 
4-3-2-1
 Check for Forced Flash.
 
4-3-2-2
 Check HW status of ROM.
 
4-3-2-3
 BIOS ROM is OK.
 
4-3-2-4
 Do a complete RAM test.
 
4-3-3-1
 Do OEM initialization.
 
4-3-3-2
 Initialize interrupt controller.
 
4-3-3-3
 Read in bootstrap code.
 
4-3-3-4
 Initialize all vectors.
 
4-3-4-1
 Boot the Flash program.
 
4-3-4-2
 Initialize the boot device.
 
4-3-4-3
 Boot code was read OK.
 

 
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