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Packard Bell Phoenix BIOS Beep Codes

If an error occurs prior to the screen becoming initialised, then the screen cannot display the error message. Systems with a Phoenix BIOS will then generate BEEP CODES, which may be used to identify a POST error that occurs when the screen is not available.

1. Fatal System Board Errors

Beep Code      Description
1 1 3CMOS read/write failure
1 1 4ROM BIOS checksum error
1 2 1Programmable interval timer failure
1 2 2DMA initialisation failure
1 2 3DMA page register read/write failure
1 3 1RAM refresh verification failure
1 3 3First 64k RAM chip or data line failure
1 3 4First 64k RAM odd/even logic failure
1 4 1Address line failure first 64k RAM
1 4 2Parity failure first 64k RAM
2 1 1Bit 0 first 64k RAM failure
2 1 2Bit 1 first 64k RAM failure
2 1 3Bit 2 first 64k RAM failure
2 1 4Bit 3 first 64k RAM failure
2 2 1Bit 4 first 64k RAM failure
2 2 2Bit 5 first 64k RAM failure
2 2 3Bit 6 first 64k RAM failure
2 2 4Bit 7 first 64k RAM failure
2 3 1Bit 8 first 64k RAM failure
2 3 2Bit 9 first 64k RAM failure
2 3 3Bit 10 first 64k RAM failure
2 3 4Bit 11 first 64k RAM failure
2 4 1Bit 12 first 64k RAM failure
2 4 2Bit 13 first 64k RAM failure
2 4 3Bit 14 first 64k RAM failure
2 4 4Bit 15 first 64k RAM failure
3 1 1Slave DMA register failure
3 1 2Master DMA register failure
3 1 3Master interrupt mask register failure
3 1 4Slave interrupt mask register failure
3 2 4Keyboard controller Test failure
3 3 4Screen initialisation failure
3 4 1Screen retrace test failure
3 4 2Search for video ROM in progress

2. Non-Fatal System Board Errors

NOTE: "low" means a lower-pitched beep precedes the three bursts.

Beep Codes     Description
4 2 1Timer tick interrupt in progress or failure
4 2 2Shutdown test in progress or failure
4 2 3Gate A20 failure
4 2 4Unexpected interrupt in protected mode
4 3 1RAM test in progress or failure>ffffh
4 3 3Interval timer channel 2 test or failure
4 3 4Time of Day clock test failure
4 4 1Serial port test or failure
4 4 2Parallel port test or failure
4 4 3Math coprocessor test or failure
low 1 1 2System Board select failure
low 1 1 2Extended CMOS RAM failure