SUPER P6DBS/P6DBE/P6DBU/P6SBU/P6SBS/P6SBA/P6SBM Manual
1-22
Three-Fan Status Monitors with Firmware/Software On/Off
Control
The PC health monitor can check the RPM status of the cooling fans. The
onboard 3-pin CPU fan is controlled by the ACPI BIOS and the ACPI-enabled
operating system. The thermal fans are controlled by the overheat detec-
tion logic.
Environment Temperature Control
The thermal control sensor monitors the CPU temperature in real time and
will turn on a back-up 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 back-up fan to prevent any overheat damage to
the CPU. The onboard chassis thermal circuitry can monitor the overall
system temperature and alert users when the chassis temperature is too
high.
CPU Fan Auto-Off in Sleep Mode
The CPU fan activates when the power is turned on. It can be turned off
when the CPU is in sleep mode. When in sleep mode, the CPU will not run
at full power, thereby generating less heat. For power saving purposes,
the user has the option to shut down the CPU fan.
CPU Overheat Alarm, LED and Control in P6DBS/P6DBE/
P6DBU/P6SBU/P6SBS/P6SBM
This feature is available when the user enables the CPU overheat warning
function in the BIOS (see page 5-18). The overheat alarm will activate
when the CPU temperature exceeds the temperature configured by the
user. When the overheat alarm is activated, both the overheat fan and the
warning LED are triggered.
Chassis Intrusion Detection
The chassis intrusion circuitry can detect unauthorized intrusion to the sys-
tem. The chassis intrusion connector is located on JL1. Attach a
microswitch to JL1. When the microswitch is closed, it means that the
chassis has been opened. The circuitry will then alert the user with a
To Next Page
Loading...
