3.4.1 CPU Configuration

Cool ‘n’ Quiet

Use this item to enable or disable AMD’s Cool ‘n’ QuietTM technology. The default value is [Enabled]. Configuration options: [Enabled] and [Disabled]. If you install Windows® 8 / 7 / VistaTM and want to enable this function, please set this item to [Enabled]. Please note that enabling this function may reduce CPU voltage and memory frequency, and lead to system sta- bility or compatibility issue with some memory modules or power supplies. Please set this item to [Disable] if above issue occurs.

Enhance Halt State (C1E)

All processors support the Halt State (C1). The C1 state is supported through the native processor instructions HLT and MWAIT and requires no hardware support from the chipset. In the C1 power state, the processor maintains the context of the system caches.

Secure Virtual Machine

When this option is set to [Enabled], a VMM (Virtual Machine Architecture) can utilize the additional hardware capabilities provided by AMD-V. The default value is [Enabled]. Configuration options: [Enabled] and [Disabled].

Core C6 Mode

Use this item to enable or disable Core C6 mode. The default value is [Enabled].

CPU Thermal Throttle

Use this item to enable CPU internal thermal control mechanism to keep the CPU from overheated. The default value is [Auto].

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ASRock 990FX Extreme9 manual CPU Configuration