| Beep Sequence | Description | Troubleshooting |
|---|---|---|
| One short beep | Normal boot | |
| One short beep, nothing displays on monitor | Normal boot | Check that the monitor is functioning and connected correctly. |
| Power light is ON, no beep | Hardware issue | Check that the CPU and memory are installed correctly and there is no corrosion or dirt on the connections. |
| One continuous beep followed by two short beeps, then a pause (repeating) | No memory (RAM) detected | 1. Confirm the memory is correctly installed. 2. Remove and reseat the memory. 3. Try isolating problem RAM by testing each stick of RAM individually, removing the other. 4. Try swapping suspect RAM with known working RAM. |
| One continuous beep followed by three short beeps | No VGA detected | If the graphic card needs additional power supplied, ensure the power supply can provide enough wattage. |
| One continuous beep followed by four short beeps | Hardware component failure – CPU Fan Error, CPU Over Temperature, CPU Over Voltage | 1. Check that the CPU fan is installed correctly. 2. Check that the CPU fan is free to spin. 3. If still failing, enter BIOS to load default BIOS settings or clear CMOS before trying again. |
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