User`s manual

1
Introduction
13
1.1.2 System Health Monitor Functions
The system board is capable of monitoring the following “system
health” conditions.
• Monitors CPU/system temperature and overheat alarm
• Monitors CPU/1.5V/5VSB/VBAT/3.3V/5V/±12V voltages and
failure alarm
• Monitors the speed of the CPU, chassis and 2nd fans and fail-
ure alarm
• Automatic chassis fan and 2nd fan on/off control
• Read back capability that displays temperature, voltage and fan
speed
• Opened chassis alarm
Refer to the “PC Health Status” section in chapter 3 and the
“Hardware Monitor” section in chapter 4 for more information.
1.1.3 Intelligence
CPU Fan Protection
The CPU Fan Protection function has the capability of monitoring
the CPU fan when the system boots. Once it has detected that the
CPU fan did not rotate, 5 warning beeps will sound then the sys-
tem will automatically power-off. This preventive measure has been
added to protect the CPU from damage and insure a safe comput-
ing environment.
CPU Temperature Protection
The CPU Temperature Protection function has the capability of
monitoring the CPU’s temperature during system boot-up. Once
the system has detected that the CPU’s temperature exceeded the
temperature limit defined in the BIOS, 5 warning beeps will sound
then the system will automatically power-off.
Automatic Chassis/2nd Fan Off
The chassis fan and 2nd fan will automatically turn off once the
system enters the Suspend mode.