MSI 5500 Master Series, User Manual

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3-7
BIOS Setup
C1E Support
W hen the C1E Support (Enhanced Halt Powerdown State) is enabled, the proc-
essor will transition to a lower core to bus ratio and lower voltage ID driven by
the processor to the voltage regulator before entering Halt Powerdown State
(C1). Not all porcessors support Enhanced Halt Powerdown State (C1E).
Max CPUID Value Limit
The Max CPUID Value Limit BIOS feature allows you to circumvent problems
with older operating systems that do not support the Intel Pentium 4 processor
with Hyper-Threading Technology. W hen enabled, the processor will limit the
maximum CPUID input value to 03h when queried, even if the processor sup-
ports a higher CPUID input value. When disabled, the processor will return the
actual maximum CPUID input value of the processor when queried.
Intel(R) SpeedStep(tm) Tech
EIST (Enhanced Intel SpeedStep Technology) allows the system to dynamically
adjust processor voltage and core frequency, which can result in decreased
average power consumption and decreased average heat production.
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