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OhhMua > Blog > Computer > Computer Hardware > Comprehensive Computer Beep Codes [Help You Fix Errors]
Computer Hardware

Comprehensive Computer Beep Codes [Help You Fix Errors]

Admin (Nghia Vo)
Last updated: April 22, 2025 2:49 pm
Admin (Nghia Vo)
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Comprehensive Computer Beep Codes [Help You Fix Errors]
Comprehensive Computer Beep Codes [Help You Fix Errors]
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AMI BIOS Beep CodesAward BIOS Beep CodesDell BIOS Beep CodesIBM BIOS Beep Codes

When you power on your computer, it performs a “POST” (Power-On Self-Test) to check the internal hardware for compatibility and connections before proceeding with the rest of the boot process. If your computer successfully passes POST, it may emit a beep (some computers may beep twice) during startup. However, if there is a POST error, the computer may not beep or may emit beep codes to indicate the nature of the problem. These beep codes can provide clues about what’s happening with your computer.

AMI BIOS Beep Codes

Here are the AMI BIOS beep codes. However, note that beep codes can vary between different computer manufacturers using this BIOS.

BEEP CODE DESCRIPTION
1 short beep RAM needs cleaning
2 short beeps Parity circuit error
3 short beeps RAM failure
4 short beeps System timer failure
5 short beeps Processor failure
6 short beeps Keyboard controller error
7 short beeps Virtual mode error
8 short beeps Display memory read/write error
9 short beeps BIOS ROM checksum error
10 short beeps CMOS battery needs replacement
11 short beeps Cache memory error
1 long, 3 short beeps Conventional or extended memory error
1 long, 8 short beeps Display test failure
2-tone alarm CPU fan speed too low or power issue

Award BIOS Beep Codes

Similarly, due to variations among computer manufacturers using Award BIOS, the beep codes can differ.

BEEP CODE DESCRIPTION
1 long, 2 short beeps Video error and BIOS cannot display information
1 long, 3 short beeps Graphics card not detected or faulty
Continuous beeping RAM issue
Repeating high-frequency beeps while the computer is running CPU overheating
Alternating high and low-frequency beeps Possible CPU failure

Dell BIOS Beep Codes

BEEP CODE DESCRIPTION
1 beep BIOS ROM error or failure
2 beeps RAM not detected or faulty
3 beeps Motherboard error
4 beeps RAM memory error
5 beeps CMOS battery failure
6 beeps Graphics card error
7 beeps CPU failure or issue

IBM BIOS Beep Codes

BEEP CODE DESCRIPTION
1 beep POST successful, computer is okay
2 short beeps POST error, check error code on screen
Continuous beeping No power, loose or shorted connections
Repeating short beeps No power, loose or shorted connections
1 long beep and 1 short beep Motherboard issue
1 long beep and 2 short beeps Graphics card issue
1 long beep and 3 short beeps Video display circuit (EGA)
3 long beeps Keyboard failure
1 beep, blank screen Video display circuit failure

 

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Admin (Nghia Vo)

Hi, I’m Nghia Vo: a computer hardware graduate, passionate PC hardware blogger, and entrepreneur with extensive hands-on experience building and upgrading computers for gaming, productivity, and business operations.

As the founder of Vonebuy.com, a verified ecommerce store under Vietnam’s Ministry of Industry and Trade, I combine my technical knowledge with real-world business applications to help users make confident decisions.

I specialize in no-nonsense guides on RAM overclocking, motherboard compatibility, SSD upgrades, and honest product reviews sharing everything I’ve tested and implemented for my customers and readers.

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By Admin (Nghia Vo)
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Hi, I’m Nghia Vo: a computer hardware graduate, passionate PC hardware blogger, and entrepreneur with extensive hands-on experience building and upgrading computers for gaming, productivity, and business operations.

As the founder of Vonebuy.com, a verified ecommerce store under Vietnam's Ministry of Industry and Trade, I combine my technical knowledge with real-world business applications to help users make confident decisions. I specialize in no-nonsense guides on RAM overclocking, motherboard compatibility, SSD upgrades, and honest product reviews sharing everything I’ve tested and implemented for my customers and readers.
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