ASROCK P55 PRO/USB3 User Manual download pdf (Page 49)

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Overclock Mode

Use this to select Overclock Mode. Configuration options: [Auto], [Manual],

[I.O.T.] and [Optimized]. The default value is [Auto]. If you select [Manual],

Untied Overclocking function is enabled. Please refer to page 45 for the

details of Untied Overclocking Technology. Therefore, you are allowed to

adjust the Host frequency and PCIE frequency in the following two items.

If you select [I.O.T.] (Intelligent Overclocking Technology), the system will

automatically enable the overclocking function when your CPU is heavy

loaded.

BCLK Frequency (MHz)

Use this option to adjust BCLK (Internal Base Clock) frequency.

PCIE Frequency (MHz)

Use this option to adjust PCIE frequency.

Boot Failure Guard

Enable or disable the feature of Boot Failure Guard.

Boot Failure Guard Count

Enable or disable the feature of Boot Failure Guard Count.

Spread Spectrum

This item should always be [Auto] for better system stability.

CPU Ratio Setting

If the ratio status is unlocked, you will find this item appear to allow you

changing the ratio value of this motherboard.

QPI Frequency

Use this item to select QPI frequency. Configuration options: [Auto],

[3.200GT] to [6.400GT]. The default value is [Auto].

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s)

inserted and assigns appropriate frequency automatically. You may select

[Auto], [400MHz DDR3_800], [533MHz DDR3_1066] or [667MHz DDR3_1333].

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ASROCK P55 PRO/USB3 User Manual Page 49