Phoenix BIOS Beep Codes

Phoenix BIOS uses beep code patterns to indicate problems. In the table below the '-' indicates a brief pause between beeps.
Example: 1 - 1 - 2 would sound like BEEP BEEP BEEP BEEP
BEEP CODE MEANING POSSIBLE CAUSE
1 - 1 - 2 CPU / motherboard failure Bad CPU / motherboard
1 - 1 - 3 CMOS read/write failure Bad motherboard
1 - 1 - 4 BIOS ROM failure Bad BIOS chip
1 - 2 - 1 Timer failure Bad motherboard
1 - 2 - 2 DMA failure Bad motherboard
1 - 2 - 3 DMA failure Bad motherboard
1 - 3 - 1 Memory refresh failure Bad memory
1 - 3 - 2 64K memory failure Bad memory
1 - 3 - 3 64K memory failure Bad memory
1 - 3 - 4 64K memory failure Bad memory
1 - 4 - 1 Address line failure Bad memory
1 - 4 - 2 Parity error Bad memory
1 - 4 - 3 Timer failure Bad motherboard
1 - 4 - 4 NMI port failure Bad motherboard
2 - 1 - 1 64K memory failure Bad memory
2 - 1 - 2 64K memory failure Bad memory
2 - 1 - 3 64K memory failure Bad memory
2 - 1 - 4 64K memory failure Bad memory
2 - 2 - 1 64K memory failure Bad memory
2 - 2 - 2 64K memory failure Bad memory
2 - 2 - 3 64K memory failure Bad memory
2 - 2 - 4 64K memory failure Bad memory
2 - 3 - 1 64K memory failure Bad memory
2 - 3 - 2 64K memory failure Bad memory
2 - 3 - 3 64K memory failure Bad memory
2 - 3 - 4 64K memory failure Bad memory
2 - 4 - 1 64K memory failure Bad memory
2 - 4 - 2 64K memory failure Bad memory
2 - 4 - 4 64K memory failure Bad memory
2 - 4 - 4 64K memory failure Bad memory
3 - 1 - 1 Slave DMA failure Bad motherboard
3 - 1 - 2 Master DMA failure Bad motherboard
3 - 1 - 3 Interrupt controller failure Bad motherboard
3 - 1 -4 Slave IC failure Bad motherboard
3 - 2 -2 Interrupt Controller failure Bad motherboard
3 - 2 - 3
3 - 2 - 4 Keyboard control failure Bad motherboard
3 - 3 - 1 CMOS batter failure Bad CMOS battery
3 - 3 - 2 CMOS configuration error Incorrect setting
3 - 3 - 3
3 - 3 - 4 Video memory failure Bad video card or memory
3 - 4 - 1 Video init failure Bad video card or memory
4 - 2 - 1 Timer failure Bad motherboard
4 - 2 - 2 CMOS shutdown failure Bad motherboard
4 - 2 - 3 Gate A20 failure Bad motherboard
4 - 2 - 4 Unexpected interrupt Bad processor
4 - 3 - 1 RAM test failure Bad memory
4 - 3 - 3 Timer failure Bad motherboard
4 - 3 - 4 RTC failure Bad motherboard
4 - 4 - 1 Serial port failure Bad motherboard
4 - 4 - 2 Parallel port failure Bad motherboard
4 - 4 - 3 Coprocessor failure Bad motherboard or CPU.
9 - 2 - 1 Video adapter incompatibility Use a different brand of video card