Should I enable spread spectrum BIOS?

The MCLK Spread Spectrum BIOS feature controls spread spectrum clocking of the memory bus. Therefore, it is recommended that you disable the MCLK Spread Spectrum feature if you are overclocking the memory bus. You will be able to achieve better overclockability, at the expense of higher EMI.

What is clock spread spectrum?

Spread spectrum clocking (SSC) is a special way to reduce the radiated emissions of digital clock signals. SSC is the variation of the frequency of a clock signal in a controlled way. In the frequency domain, the SSC reduces the peak amplitude of a digital clock signal by shifting the frequency.

Can I disable spread spectrum?

There’s really no point in disabling spread spectrum, if you are unstable with it on, you are gonna continue being unable with it also off…

Should I disable PCIE spread spectrum?

If you are using such devices on the PCI Express interconnect, you must disable PCIE Spread Spectrum. System stability may also be compromised if you are overclocking the PCI Express interconnect. Therefore, it is recommended that you disable this feature if you are overclocking the PCI Express interconnect.

What is Svid behavior?

The System V Interface Definition (SVID) is a standard that describes the AT UNIX System V behavior, including that of system calls, C libraries, available programs and devices. Part of the reason for this was undoubtedly their vendor-independent approach (see Unix wars).

Why is spread spectrum used?

Spread Spectrum refers to a system originally developed for military applications, to provide secure communications by spreading the signal over a large frequency band. These narrowband signals are easily jammed by any other signal in the same band.

What is CPU clock ratio in BIOS?

Also called the “clock ratio,” it is the speed ratio between the computer’s frontside bus (FSB) and the CPU. For example, a 10x CPU multiplier runs the CPU at 10 times the speed of the FSB. The CPU multiplier is changed in the BIOS setup.

What is the disadvantage of spread spectrum?

Involves low power spectral density since signal is spread over a large frequency band. Disadvantages: Bandwidth inefficient; • Implementation is somewhat complex. Two of the most popular techniques that provide spectrum spreading in a spread spectrum system are direct sequence and frequency hopping.