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X8DAH+/X8DAH+-F User’s Manual
Notes
:
The CPU thermal technology that reports absolute temperatures (Celsius/Fahr-
enheit) has been upgraded to a more advanced feature by Intel in its newer
processors. The basic concept is each CPU is embedded by unique temperature
information that the motherboard can read. This ‘Temperature Threshold’ or
‘Temperature Tolerance’ has been assigned at the factory and is the baseline on
which the motherboard takes action during different CPU temperature conditions
(i.e., by increasing CPU Fan speed, triggering the Overheat Alarm, etc). Since
CPUs can have different ‘Temperature Tolerances’, the installed CPU can now
send information to the motherboard what its ‘Temperature Tolerance’ is, and not
the other way around. This results in better CPU thermal management.
Supermicro has leveraged this feature by assigning a temperature status to
certain thermal conditions in the processor (Low, Medium and High). This makes
it easier for the user to understand the CPU’s temperature status, rather than by
just simply seeing a temperature reading (i.e., 25
o
C).
The information provided above is for your reference only. For more information
on thermal management, please refer to Intel’s Web site at www.Intel.com.
System Temperature:
The system temperature will be displayed (in degrees in
Celsius and Fahrenheit) as it is detected by the BIOS.
Fan Speed Readings
This feature displays the fan speed readings from Fan1 through Fan8.
Fan Speed Control Modes
This feature allows the user to decide how the system controls the speeds of the
onboard fans. The CPU temperature and the fan speed are correlative. When the
CPU on-die temperature increases, the fan speed will also increase, and vice versa.
Select Workstation if your system is used as a Workstation. Select Server if your
system is used as a Server. Select Disabled to disable the fan speed control func-
tion and allow the onboard fans to constantly run at full speed. The Options are:
Full Speed
, Server, Workstation/Desktop, and Server Quiet.
Voltage Readings
The following voltage readings will be displayed.
CPU0 Vcore, CPU1 Vcore, 1.5V, 5V, 5VSB, 12V, -12V, 3.3Vcc, 3.3VSB, VBAT
and Vtt
ACPI Confi guration
Use this feature to confi gure Advanced Confi guration and Power Interface (ACPI)
power management settings for your system.