TYAN TIGER I7322DP Manual page 52

simultaneously on one processor. This is achieved by duplicating the architectural
state on each processor, while sharing one set of processor execution resources.
Hyper-Threading Technology also delivers faster response times for multi-tasking
workload environments. By allowing the processor to use on-die resources that
would otherwise have been idle, Hyper-Threading Technology provides a
performance boost on multi-threading and multi-tasking operations for the Intel
NetBurst® microarchitecture.
Options: Enabled / Disabled
Machine Checking
Microsoft windows & new linux kernel support the Machine check architectures.
This enables Machine check exception reporting for all implementation-defined
errors.
Options: Enabled / Disabled
Thermal Control Circuit
Intel CPU supports the thermal monitoring TM1 or TM2 which can control the power
consumption.
TM1: Thermal Monitor 1 uses a highly accurate on-die temperature sensing
circuit in the CPU that has the ability to act quickly upon any thermal
issues (~50ns). This circuitry keeps an eye on the most taxed areas of the
CPU-die at all times and will quickly act upon temperatures going over the
safety limits. The thermal monitor's control circuit, when active, lowers the
CPU temperature by throttling the internal CPU clock speed. This is done
with a 50% duty-cycle, which means that a 2GHz CPU will then effectively
run at a 1GHz clock speed. Due to the fast response time of the thermal
monitor circuit (~50ns) the CPU will only be 'throttled' for a very brief period.
Once the CPU-die temperature is within safe operating limits again it'll set
back to the 2GHz clock speed it originally operated at.
TM2: Thermal Monitor 2 decreases or increases the CPU clock and core
voltage according to the CPU load. This information is read from the five
VID pins of the CPU. Accordingly, the CPU temperature is also
automatically decreased, when the core voltage is decreased. This
improves the CPU lifespan. The states switch is so fast that the
performance decrease is insignificant.
Options: TM2 / TM1
Set Max Ext CPUID=3
Sets Max CPUID extended function value to 3.
Options: Disabled / Enabled
Processor Power Management
Support new Intel CPU power management technology, such as EIST & C1E.
Options: EIST & C1E / GV1/GV3 only
No Execute Mode Mem Protection
Execution protection prevents code execution from data pages such as the default
heap, various stacks, and memory pools. Protection can be applied in both user
and kernel-mode. Windows XP SP2 supports this technology.
Options: Enabled / Disabled
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