PHOENIX BIOS code of the alarm sound

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1 short: System restart normal
1 short 1 short 1 short: System initialization failed Power On Self Test
1 short 1 short 2 short: the main board error
3 short-1 short-1 short: CMOS or battery failure
4 short 1 short 1 short: ROM BIOS checksum error
2 short-1 short-1 short: System clock error
2 short-1 short-2 short: DMA initialization failure
2 Short 1 Short 3 Short: DMA page register error
3 short-1 short-1 short: RAM ******* error
3 short-1 short-2 short: Basic memory errors
3 short-3 short-1 short: Basic memory errors
4 short 1 short 1 short: Basic memory address line error
4 short 1 short 2 short: Basic memory checksum error
1 Short 3 Short 4 Short: E ISA timing device
1 short-4 short-4 short: EISA NMI port error
2 short-1 short-1 short-2 short-4 short-4 short: Basic memory errors
3 short-1 short-1 short: From DMA register error
3 short-1 short-2 short: the main DMA error register
3 short-3 short-1 short: the main interrupt handling error register
3 short-1 short-4 short: error register from the interrupt handling
2 short-4 short-3 short: Keyboard controller error
3 short-3 short-4 short: Display memory error
3 short-2 short-4 short: error
4 short-3 short-3 short: did not find display read-only memory
2 short-1 short-4 short: clock error
2 short-2 short-4 short: shutdown error
2 short-4 short-3 short: A20 the wrong door
2 short-4 short-4 short: protected mode interrupt error
4 short-3 short-1 short: Memory error
4 short-3 short-3 short: clock error 2
3 Short 4 Short 4 Short: real-time clock error
4 short-4 short 1 short: serial port error
4 short-2 short-4 short: parallel port error
4 short-4 short 3 short: digital co-processor error​