Foxconn BLACKOPS User Manual page 53

tem boots. For example, with the default value of 16 Minutes, the BIOS activates the Thermal
Monitor 16 minutes after the system starts booting up.
Generally, the Thermal Monitor should not be activated immediately on booting as the proces-
sor will be under a heavy load during the booting process. Lower delay time unnecessarily
reduces the processor's performance during the booting up process.
Therefore, to ensure optimal booting performance, the activation of the Thermal Monitor must
be delayed for a set period of time.
It is recommended that you set this BIOS feature to the lowest value (in minutes) that exceeds
the time it takes to fully boot up your computer. For example, if it takes 5 minutes to fully boot
up your system, you should select 8 Minutes.
You should not select a delay value that is unnecessarily long. Without the Thermal Monitor,
your processor may heat up to a critical temperature (approximately 135°C), at which point the
thermal sensor shuts down your processor by removing the core voltage within 0.5 seconds.
► Thermal Management
Thermal Monitor 1 (TM1) is implemented in Pentium 4, Xeon and Pentium M processors. It is
a CPU clock modulation mechanism which prevents CPU overheating in emergency cases by
reducing duty cycle of the processor for up to 46%. The task of this mechanism is to maintain
the CPU temperature at maximum safe level by decreasing its performance, or, in terms, by
reducing CPU Load.
Thermal Monitor 2 (TM2) is an advanced mechanism of CPU overheating protection. A con-
siderable difference is that TM2 can control the frequency and CPU voltage, while TM1 only
modulates CPU clock. Due to reduced voltage, TM2 allows to retain better processor perform-
ance in case of overheating at the same reduction of power consumption level.
TM2 is recommended for 2.8 GH� processors and higher (166 MH� bus) and 3.6 GH� and
higher (200 MH� bus), while TM1 is recommended for junior models.
This item will be displayed only when the CPU support this feature.
► TM2 Bus Ratio
This item represents the frequency (bus ratio) of the throttled performance state that will
be initiated when the on-die sensor goes from not hot to hot.
► TM2 Bus VID
This item represents the voltage of the throttled performance state that will be initiated
when the on-die sensor goes from not hot to hot.
► EIST Function
You can select the EIST (Processor Power Management, PPM) through this item. Setting
values: �Native Mode�� (For fully support ACPI OS, e.g. Windows XP, Vista); �SMM Mode�� (For
legacy OS, e.g. Windows2000).
!
Enhanced Intel SpeedStep ® technology (EIST) allows the system to dynamically
adjust processor voltage and core frequency, which can result in decreased average
power consumption and decreased average heat production. There are some system
requirements must be met, including CPU, chipset, motherboard, BIOS and operation
system. Please refer to Intel website for more information.
► Limit CPUID MaxVal
This item is used to enable or disable CPUID maximum value limit configuration. Set Limit
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