Themis RES-XR4-1U, Installation Manual

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Themis Computer
RES-XR4-1U Installation Manual Version 1.5
1.7.2.1 Fan Status Monitor
The RES-XR4-1U has six 40-mm cooling fans for the motherboard components and
one within each power supply. The PC health monitor utility can be used to check
the RPM status of cooling fans. The onboard CPU and chassis fans are controlled by
Thermal Management via BIOS.
1.7.2.2 Environmental Temperature Control
The thermal-control sensor monitors CPU temperature in real time and will activate
the thermal fan when CPU temperature exceeds a user-defined threshold. Overheat
circuitry operates independently from the CPU, and can continue to monitor over-
heat conditions even when the CPU is in sleep mode.
Once the thermal sensor detects a CPU temperature that is above the set threshold, it
automatically turns on the thermal control fan to prevent overheat damage to the
CPU. In addition, onboard chassis thermal circuitry can monitor overall system tem-
perature and alert users when chassis temperature exceeds a user-defined threshold.
1.7.2.3 System Resource Alert
Available only through SuperDoctor III in the Windows OS environment or Super-
Doctor II in Linux (an
optional third-party product), this feature is used to notify the
user of certain system events. For example, you can also configure Supero Doctor to
provide you with warnings when the system temperature, CPU temperature, voltages
and fan speeds go beyond a pre-defined range.
1.7.3 Power Supply Monitoring
The power supplies in the Themis RES servers support a feature allowing their status
to be queried directly through software. The power supplies are connected to an I
2
C
bus used for system monitoring. This bus can be reached through the Baseboard
Management Controller (BMC), (described in subsequent paragraphs), on the moth-
erboard. Sample Linux commands to do this are included below.
Caution: To avoid possible system overheating, please be sure to provide adequate
airflow to your system, and check for any possible blockages.