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The alarm board is located under the 3.5" disk drive bay. The alarm board provides
system detection functions that monitor the status of the computer system, including:
thermal conditions, fans, power supply and HDD operation. Any problems with the
system are reported through audible alarms and LED indicators.
The alarm board sounds an audible alarm whenever:
1.
Any power supply module of the redundant power supply fails;
2.
One of the system cooling fans fails;
3.
The internal temperature of the chassis becomes too high.
To stop the alarm beep, press the Alarm Reset button on the front panel and then
take the necessary action to fix the problem.
4.1
Alarm Board Layout
The layout and detailed specifications for connectors on the alarm board are shown
in this diagram:
ACP-2000MB User Manual
Figure 4.1 Alarm board layout
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