Dell OptiPlex 390 Owners Manual - Page 75

each set of beeps is 3 sec, and the beep sound lasts 300 ms. After each beep

Page 75 highlights

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 Cause 1-1-2 Microprocessor register failure Code Cause 1-1-3 NVRAM Code Cause 1-1-4 ROM BIOS checksum failure Code Cause 1-2-1 Programmable interval timer Code Cause 1-2-2 DMA initialization failure Code Cause 1-2-3 DMA page register read/write failure Code Cause 1-3-1 through 2-4-4 DIMMs not being properly identified or used Code Cause 3-1-1 Slave DMA register failure Code Cause 3-1-2 Master DMA register failure Code Cause 3-1-3 Master interrupt mask register failure Code Cause 3-1-4 Slave interrupt mask register failure 75

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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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