Chapter 3

DDR_VREF_CA/ DDR_VREF_DQ_A/ DDR_VREF_DQ_B/ PCH 1.05 Voltage/ PCH 1.5 Voltage

Set these voltages. If set to "Auto", BIOS will set these voltages automatically or you can set it manually.

Current PCH 1.05 Voltage

Shows current PCH 1.05 voltage. Read only.

▶CPU Memory Changed Detect [Enabled]

Enables or disables the system to issue a warning message during boot when the CPU or memory has been replaced.

[Enabled]

The system will issue a warning message during boot and than needs

 

to load the default settings for new devices.

[Disabled]

Disables this function and keeps the current BIOS settings.

▶Spread Spectrum

This function reduces the EMI (Electromagnetic Interference) generated by modulating clock generator pulses.

[Enabled]

Enables the spread spectrum function to reduce the EMI

 

(Electromagnetic Interference) problem.

[Disabled]

Enhances the overclocking ability of CPU Base clock.

Important

If you do not have any EMI problem, leave the setting at [Disabled] for optimal system stability and performance. But if you are plagued by EMI, select the value of Spread Spectrum for EMI reduction.

The greater the Spread Spectrum value is, the greater the EMI is reduced, and the system will become less stable. For the most suitable Spread Spectrum value, please consult your local EMI regulation.

Remember to disable Spread Spectrum if you are overclocking because even a slight jitter can introduce a temporary boost in clock speed which may just cause your overclocked processor to lock up.

▶CPU Specifications

Press <Enter> to enter the sub-menu. This sub-menu displays the information of installed CPU. You can also access this information menu at any time by pressing [F4]. Read only.

▶CPU Technology Support

Press <Enter> to enter the sub-menu. The sub-menu shows what the key features does the installed CPU support. Read only.

▶MEMORY-Z

Press <Enter> to enter the sub-menu. This sub-menu displays all the settings and timings of installed memory. You can also access this information menu at any time by pressing [F5].

▶DIMM1~4 Memory SPD

Press <Enter> to enter the sub-menu. The sub-menu displays the information of installed memory. Read only.

BIOS Setup

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Image 92
MSI Z87-XPOWER manual To load the default settings for new devices, Electromagnetic Interference problem