each set of beeps is 3 sec, and the beep sound lasts 300 ms. After each beep
and each set of beeps, the BIOS should detect if the user presses the power
button. If so, BIOS will jump out from looping and execute the normal shutdown
process and power system.
Code 1-1-2
Cause Microprocessor register failure
Code 1-1-3
Cause NVRAM
Code 1-1-4
Cause ROM BIOS checksum failure
Code 1-2-1
Cause Programmable interval timer
Code 1-2-2
Cause DMA initialization failure
Code 1-2-3
Cause DMA page register read/write failure
Code 1-3-1 through 2-4-4
Cause DIMMs not being properly identified or used
Code 3-1-1
Cause Slave DMA register failure
Code 3-1-2
Cause Master DMA register failure
Code 3-1-3
Cause Master interrupt mask register failure
Code 3-1-4
Cause Slave interrupt mask register failure
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