Audible Tones of AMIBIOS
| Tone | Meaning |
| 1 short | No errors were detected, booting continues |
| 2 short | An error of memory parity |
| 3 short | The first 64 Kbytes of operating memory are faulty |
| 4 short | A system clock is faulty |
| 5 short | A processor is faulty |
| 6 short | A keyboard controller is faulty |
| 7 short | A motherboard is faulty |
| 8 short | An error of video memory |
| 9 short | BIOS check sum is incorrect |
| 10 short | A write error in CMOS-memory |
| 11 short | An error of cash-memory |
| 1 long and 2 short | A video adapter is faulty |
| 1 long and 3 short | |
| 2 long and 2 short | An error of a floppy disk controller |
| No tones | A power supply or motherboard are faulty |
Audible Tones of AwardBIOS
| Tone | Meaning |
| 1 short | No errors, booting continues |
| Continuous or repeated short | A power supply is faulty, a circuit in supplying lines or an error of memory |
| 1 long or repeated long | An error of memory |
| 1 long and 2 short | No video adapter was detected or an error of video memory |
| 1 long and 3 short | Depending on BIOS version such tone may mean an error of video adapter or an error of keyboard |
| 3 long | An error of keyboard controller |
| 1 long and 9 short | An error of BIOS reading or BIOS microchip is faulty |
| 2 short | Non-critical error was detected. Such tone is usually accompanied by a message on a display with more specific description of an error. A user may continue booting by pressing F1 or enter BIOS Setup by pressing Delete |
| No tones | A power supply or motherboard are faulty |