A comprehensive, easy-to-use guide for understanding and diagnosing computer hardware problems through BIOS beep codes. This resource covers all major BIOS manufacturers and provides detailed troubleshooting instructions for both beginners and experienced technicians.
When your computer starts up, the motherboard performs a Power-On Self Test (POST) to check if all essential components are working properly. If a problem is detected, the system emits a series of beeps through the internal speaker - these are beep codes. Each pattern indicates a specific hardware issue, allowing you to quickly identify what's wrong without needing a display or advanced diagnostic tools.
- Complete Coverage: Detailed beep code tables for AMI, Award, Phoenix, and Intel BIOS
- Multi-Platform BIOS Identification: Step-by-step guides for Windows, Linux, and BIOS setup methods
- Modern System Support: Coverage of UEFI systems and contemporary diagnostic methods
- Practical Solutions: Recommended fixes for each diagnostic code
- Beginner-Friendly: Clear explanations suitable for all technical levels
- Mobile-Responsive: Accessible on any device
- SEO Optimized: Easy to find when you need it most
Windows (PowerShell):
Get-ComputerInfo | Select-Object BiosManufacturer, BiosVersion
# or
Get-WmiObject -Class Win32_BIOS | Select-Object Manufacturer, VersionLinux:
sudo dmidecode -t bios
# or
cat /sys/class/dmi/id/bios_vendorBoot Screen: Look for manufacturer logos during startup (AMI, Award, Phoenix, Intel)
- Count carefully - Note the number of beeps and their length (short/long)
- Record the pattern - Some codes have pauses between sequences
- Find your manufacturer - Use the appropriate table in the guide
- Follow the solution - Each code includes recommended troubleshooting steps
| Manufacturer | Pattern Type | Example Code | Meaning |
|---|---|---|---|
| AMI BIOS | Simple counts | 3 short beeps | RAM memory failure |
| Award BIOS | Long/short combinations | 1 long, 2 short | Video card problem |
| Phoenix BIOS | Three-part sequences | 1-2-3 | DMA page register error |
| Intel BIOS | Direct counts | 5 beeps | Processor failure |
- 3 short beeps (AMI): Memory issue - reseat RAM modules
- 1 long, 2 short (Award): Video card problem - check GPU connections
- Continuous beeping: Power supply or severely loose components
- 1 short beep: Usually normal - POST successful
- 1 long beep: Memory problem (Award BIOS)
- Check debug LEDs on motherboard
- Look for LCD error displays
- Consult manufacturer-specific diagnostic tools
- Any modern web browser (Chrome, Firefox, Safari, Edge)
- No JavaScript required - pure HTML/CSS
- Mobile-friendly responsive design
- Works offline once loaded
motherboard-beep-codes/
├── index.html # Main guide page
├── styles.css # Styling and responsive design
├── README.md # This file
└── LICENSE # MIT license
We welcome contributions from the hardware community! Here's how you can help:
- Report Issues: Found incorrect information? Open an issue
- Add Beep Codes: Know unlisted codes? Submit a pull request
- Improve Documentation: Enhance explanations or add new diagnostic methods
- Fix Typos: Help improve clarity and accuracy
- Fork the repository
- Create a feature branch (
git checkout -b feature/new-beep-codes) - Make your changes
- Test thoroughly
- Submit a pull request
- Verify information accuracy with reliable sources
- Maintain consistent formatting
- Include manufacturer documentation references when possible
- Use clear, accessible language for all technical levels
This project is licensed under the MIT License - see the LICENSE file for details.
- Hardware community contributors
- BIOS manufacturer documentation
- Technology enthusiasts sharing their knowledge
- Open source community feedback
- Documentation: Browse the complete guide at the main page
- Issues: GitHub Issues
- Discussions: GitHub Discussions
- Updates: Watch the repository for new beep codes and improvements
Made with ❤️ by HarukaYamamoto0
Help us keep this resource accurate and up-to-date by contributing your knowledge and experience!