American Megatrends X6DVA-EG - Manual (Page 16)

1-10
Introduction
X6DVA-4G/X6DVA-EG User's Manual
1-3 Special Features
Recovery from AC Power Loss
BIOS provides a setting for you to determine how the system will respond
when AC power is lost and then restored to the system. You can choose
for the system to remain powered off (in which case you must hit the
power switch to turn it back on) or for it to automatically return to a power-
on state. See the Power Lost Control setting in the Advanced BIOS Setup
section (Advanced Power Configuration) to change this setting. The de-
fault setting is Last State.
1-4 PC Health Monitoring
This section describes the PC health monitoring features of the SUPER
X6DVA-4G/X6DVA-EG. All have an onboard System Hardware Monitor chip
that supports PC health monitoring.
Onboard Voltage Monitors for the CPU Cores, Chipset
Voltage, Memory Voltage, +3.3V, +5V, +12V, -12V, +3.3V
Standby, and +5V Standby
An onboard voltage monitor will scan these voltages continuously. Once a
voltage becomes unstable, a warning is given or an error message is sent
to the screen. Users can adjust the voltage thresholds (in SDIII) to define
the sensitivity of the voltage monitor.
Fan Status Monitor with Fan Speed Control
The PC health monitor can check the RPM status of the cooling fans. The
onboard CPU and chassis fans are controlled by Thermal Management via
BIOS.
Environmental Temperature Control
The thermal control sensor monitors the CPU temperature in real time and
will turn on the thermal control fan whenever the CPU temperature exceeds
a user-defined threshold. The overheat circuitry runs independently from
the CPU. It can continue to monitor for overheat conditions even when the
CPU is in sleep mode. Once it detects that the CPU temperature is too high,
it will automatically turn on the thermal control fan to prevent any overheat