User manual

ACP-2010MB User Manual 24
Chapter 4 Alarm Module
The alarm module is located under the 3.5" disk drive bay. The alarm
module provides System Detection functions that monitor the entire status
of the computer system, including: thermal conditions, fans, power sup-
ply and HDD operation. Any problems with the system are reported
through audible alarms and LED indicators.
The alarm module 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 it.
4.1 Alarm Board Layout
The layout and detailed specifications for connectors on the alarm board
are shown in this diagram:
Figure 4.1: Alarm board layout