Asus H87-PLUS Computer Hardware User Manual


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Chapter 3: BIOS setup
Chapter 3
Limit CPUID Maximum [Disabled]
When set to [Enabled], this item allows the legacy OS to boot even without support for CPUs
with extended CPUID functions. Conguration options: [Enabled] [Disabled]
Execute Disable Bit [Enabled]
Execute Disable prevents certain classes of malicious buffer overow attacks when combined
with a supporting OS (SuSE Linux 9.2, RedHat Enterprise 3 Update 3). Conguration options:
[Disabled] [Enabled]
Intel Virtualization Technology [Disabled]
When set to [Enabled], a VMM can utilize the additional hardware capabilities provided by
Vanderpool Technology. Conguration options: [Disabled] [Enabled]
Hardware Prefetcher [Enabled]
Allows you to enable or disable the Mid Level Cache (L2) streamer prefetcher. Conguration
options: [Disabled] [Enabled]
Adjacent Cache Line Prefetch [Enabled]
Allows you to enable or disable the Mid Level Cache (L2) prefetching of adjacent cache lines.
Conguration options: [Disabled] [Enabled]
Boot Performance mode [Max Non-Tu...]
Allows you to select the performance state that the BIOS will set before OS handoff.
Conguration options: [Max Non-Turbo performance] [Max Battery] [Turbo Performance]
CPU Power Management Conguration
This item allows you to manage and congure the CPU’s power.
Enhanced Intel SpeedStep Technology [Enabled]
Allows your system to adjust the processor’s voltage and cores frequency, resulting in
decreased power consumption and heat production.
[Disabled] The CPU runs at its default speed.
[Enabled] The system controls the CPU speed.
Turbo Mode [Enabled]
Allows you to automatically set the processor cores to run faster than the base
frequency when operating below power, current and temperature specication limit.
Conguration options: [Enabled] [Disabled]
CPU C States
Allows you to enable or disable the CPU C states. Conguration options: [Auto]
[Enabled] [Disabled]
The following items appear only when you set the CPU C States to [Enabled].
Enhanced C1 state [Enabled]
Allows your processor to reduce power when the system is in idle mode.
Conguration options: [Enabled] [Disabled]
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