BIOS beeps problems and reasons

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hi all
Using the BIOS beeps that are emitted when you turn on the computer, you can find out some errors in the system
in this thread we will show BIOS beeps problems and reasons for all models and reasons
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1.IBM BIOS​

Beep sequence	Error description
1 root	Successful POST
1 beep and blank screen	Faulty video system
2 poles	Faulty video system
3 longx	Faulty motherboard (faulty keyboard controller), missing RAM
1 long, 1 short	Faulty motherboard
1 long, 2 shorts	Faulty video system (Mono/CGA)
1 long, 3 shorts	Faulty video system (EGA/VGA)
Repetitive short	Faults are related to the power supply or motherboard
continuous	Problems with the power supply or motherboard
No	Faulty power supply, motherboard, or speaker

2 Award BIOS

Beep sequence	Error description
1 root	Successful POST
2 poles	Minor errors found. A prompt appears on the screen of the monitor to enter the CMOS Setup Utility program and correct the situation. Check the reliability of the cables in the connectors of the hard drive and the motherboard
3 longx	Keyboard controller error
1 short, 1 long	Random access memory (RAM) error
1 long, 2 shorts	Video errors
1 long, 3 shorts	Keyboard error
1 long, 9 shorts	Error while reading from RAM
Repetitive short	- Problems with the power supply; - Problems with RAM
Repeating long.	RAM problems
Repeating high-low frequency	Problems with CPU
Continuous	Problems with the power supply

3. AMI BIOS

Beep sequence	Error description
1 root	Error not detected, OK OK
2 poles	RAM parity error or you forgot to turn off the scanner or printer
3 poles	Error in the first 64 KB RAM
4 poles	System timer malfunction. Replace the motherboard.
5 choruses	Problems with the processor
6 poles	Keyboard controller initialization error
7 hips	Problems with the motherboard
8 holes	Video memory error
9 choruses	BIOS checksum is incorrect
10 holes	Write error in CMOS
11 choruses	Error in the cache located on the motherboard
1 long, 1 short	Problems with the power supply
1 long, 2 shorts	Video errors (Mono-CGA)
1 long, 3 shorts	Video errors (EGA-VGA)
1 long, 4 hips	Missing video cards
1 long, 8 loops	Problems with video card or monitor not connected
3 longx	RAM - read/write test completed with an error. Reinstall memory or replace with correct module
Missing and blank screen	Faulty processor. The processor leg may be bent (broken). Check the process.
continuous beep	Power supply failure or computer overheating

4.AST BIOS

Beep sequence	Error description
1 root	Error while checking processor registers. Processor malfunction
2 poles	Keyboard controller buffer error. Keyboard controller malfunction
3 poles	Keyboard controller reset error. Malfunction of the keyboard controller or system board
4 poles	Keyboard communication error
5 choruses	Keyboard input error
6 poles	System board error
9 choruses	BIOS RAM checksum mismatch. Faulty BIOS memory chip
10 holes	System timer error. The system timer microchip is faulty
11 choruses	Mistakes in system logic (chipset)
12 holes	Power management register error in non-volatile memory
1 long	DMA controller error 0. Faulty microchip DMA controller channel 0
1 long, 1 short	DMA controller 1 error. DMA controller chip for channel 1 is defective
1 long, 2 shorts	Error canceling the reverse motion of the frame scan. The video adapter may be defective
1 long, 3 shorts	Error in video memory. The memory of the video adapter is defective
1 long, 4 hips	Video adapter error. Faulty video adapter
1 long, 5 shorts	Memory error 64K
1 long, 6 hips	We were unable to load the interrupt vectors. BIOS could not load interrupt vectors into memory
1 long, 7 loops	Failed to initialize the video subsystem
1 long, 8 loops	Video memory error

5. Phoenix BIOS

Beep sequence	Error description
1-1-2	Error while testing the processor. Processor is defective. Replace Processor
1-1-3	Error writing / reading data to / from CMOS memory
1-1-4	An error was detected while calculating the checksum of the BIOS content
1-2-1	Motherboard initialization error
1-2-2 or 1-2-3	DMA controller initialization error
1-3-1	Error initializing the RAM regeneration scheme
1-3-3 or 1-3-4	Error initializing the first 64 Kbytes of RAM
1-4-1	Motherboard initialization error
1-4-2	Error initializing the RAM
1-4-3	Error initializing the system timer
1-4-4	Write/read error to/from one of the I/O ports
2-1-1	An error was detected while reading/writing the 0th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-1-2	An error was detected while reading / writing the 1st bit (in hexadecimal notation) of the first 64 KB of RAM
2-1-3	An error was detected while reading/writing the 2nd bit (in hexadecimal notation) of the first 64 Kbytes of RAM
2-1-4	An error was detected while reading/writing the 3rd bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-2-1	An error was detected while reading/writing the 4th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-2-2	An error was detected while reading/writing the 5th bit (in hexadecimal notation) of the first 64 Kbytes of RAM
2-2-3	An error was detected while reading/writing the 6th bit (in hexadecimal notation) of the first 64 Kbytes of RAM
2-2-4	An error was detected while reading/writing the 7th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-3-1	An error was detected while reading/writing the 8th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-3-2	An error was detected while reading/writing the 9th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-3-3	An error was detected while reading/writing the 10th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-3-4	An error was detected while reading/writing the 11th bit (in hexadecimal notation) of the first 64 Kbytes of RAM
2-4-1	An error was detected while reading/writing the 12th bit (in hexadecimal representation) of the first 64 Kbytes of RAM
2-4-2	An error was detected while reading/writing the 13th bit (in hexadecimal notation) of the first 64 Kbytes of RAM
2-4-3	An error was detected while reading/writing the 14th bit (in hexadecimal notation) of the first 64 Kbytes of RAM
2-4-4	An error was detected while reading/writing the 15th bit (in hexadecimal notation) of the first 64 Kbytes of RAM
3-1-1	Error initializing the second DMA channel
3-1-2 or 3-1-4	Error initializing the first DMA channel
3-2-4	Keyboard controller initialization error
3-3-4	Video memory initialization error
3-4-1	There were serious problems when trying to handle the monitor
3-4-2	Cannot initialize video card BIOS
4-2-1	Error initializing the system timer
4-2-2	Testing completed
4-2-3	Keyboard controller initialization error
4-2-4	Critical error when switching the central processor to protected mode
4-3-1	Error initializing the RAM
4-3-2	Error initializing the first timer
4-3-3	Error initializing the second timer
4-4-1	Error initializing one of the serial ports
4-4-2	Parallel port initialization error
4-4-3	Error initializing the math coprocessor
Long, continuous beeps	Faulty motherboard
Siren sounds from high to low frequency	Faulty video card, check electrical capacities for leaks, or replace all with new ones that are known to be good
continuous signal	CPU not connected (faulty)

6. Compaq BIOS

Sounds	Description
1 root	No error. Hopmalnaya system load
1 long + 1 short	CMOS BIOS memory checksum error. It is possible that the aĸĸymylator ROM has sat down
2 poles	Global error
1 long + 2 hips	Video card initialization error. Check that the video card is installed correctly
7 beeps (1 long, 1 s, 1?, 1 short, pause, 1 long, 1 short, 1 short)	Malfunction of the AGP video card. Check if the setting is correct
1 long standing	RAM error, try rebooting
1 short + 2 long	RAM failure. Reboot via Reset

7. DELL BIOS

Beep sequence	Error description
1-2	Video card not connected
1-2-2-3	BIOS RAM checksum error
1-3-1-1	DRAM update error
1-3-1-3	Keyboard error 8742
1-3-3-1	Faulty memory
1-3-4-1	RAM error on line xxx
1-3-4-3	RAM error on low bit
1-4-1-1 test	RAM error on high bit

8.Quadtel BIOS

Beep sequence	Error description
1 short signal	Error not detected, OK OK
2 short signals	CMOS RAM is damaged. Replace IC if possible
1 long, 2 short beeps	Video adapter error. Faulty video adapter. Install the video adapter or replace the adapter if possible
1 long, 3 short beeps	One or more of the peripheral controllers is defective. Replace controllers and retest