ASRock P45X3 Deluxe User Manual - Page 48
Strap FSB to MCH
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Overclock Mode Use this to select Overclock Mode. Configuration options: [Auto], [Manual] and [I.O.T.]. The default value is [Auto]. If you select [Manual], Untied Overclocking function is enabled. Please refer to page 43 for the details of Untied Overclocking Technology. If you select [I.O.T.] (Intelligent Overclocking Technology), you are allowed to adjust the CPU frequency and PCIE frequency in the following two items. Therefore, the system will automatically enable the overclocking function when your CPU is heavy loaded. CPU Frequency (MHz) Use this option to adjust CPU frequency. PCIE Frequency (MHz) Use this option to adjust PCIE frequency. Strap FSB to MCH Use this item to strap FSB to MCH. Configuration options: [Auto], [800], [1066], [1333] and [1600]. The configuration options depend on the CPU you adopt. The default value is [Auto]. Boot Failure Guard Enable or disable the feature of Boot Failure Guard. Spread Spectrum This item should always be [Auto] for better system stability. Ratio Status This is a read-only item, which displays whether the ratio status of this motherboard is "Locked" or "Unlocked". If it shows "Unlocked", you will find an item Ratio CMOS Setting appears to allow you changing the ratio value of this motherboard. Ratio Actual Value This is a read-only item, which displays the ratio actual value of this motherboard. Ratio CMOS Setting If the ratio status is unlocked, you will find this item appear to allow you changing the ratio value of this motherboard. If the CPU you adopt supports EIST (Intel (R) SpeedStep(tm) tech.), and you plan to adjust the ratio value, please disable the option " Intel (R) SpeedStep(tm) tech." in advance. Enhance Halt State 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. CPU Thermal Throttling You may select [Enabled] to enable P4 CPU internal thermal control mechanism to keep the CPU from overheated. 48