What does spread spectrum in BIOS mean?
Spread spectrum clocking works by continuously modulating the clock signal around a particular frequency. This “spreads out” the power output and “flattens” the spikes of signal waveform, keeping them below the FCC limit.
Should I enable spread spectrum BIOS?
Performance boost: The “Spread Spectrum Control” function slows the system. It should always be disabled. This feature helps boost performance slightly.
What is VRM spread spectrum?
In VRM, spread spectrum frequency modulation can be employed as a technique to reduce EMI. By using this technique, the noise is spread over a wider bandwidth and shaves off the peak and average noise occurrences at particular frequencies.
What is SSC in PCIE?
Spread Spectrum Clocking (SSC) is a highly effective technique utilized to reduce electromagnetic interference or EMI. PCI Express 5.0 System designers use this tool to reduce the adverse effects on adjacent circuits and to pass FCC or other regulatory body requirements for EMI emissions.
What is SSC clock?
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.
Is it safe to disable spread spectrum?
Generally, frequency modulation through spread spectrum clocking should not cause any problems. However, system stability may be compromised if you are overclocking the memory bus. Therefore, it is recommended that you disable the MCLK Spread Spectrum feature if you are overclocking the memory bus.
What is BCLK spread spectrum?
Common BCLK values with Spread Spectrum are 99.8, 100.2, 100.5, 100.7, and 100.8, 99.8 is the most common though.
What is active frequency mode?
Active Frequency Mode sets a range of VRM frequencies, depending on the current pull of the system. At low power modes the frequency is reduced to reduce the total power, but at high current pulls, the frequency is increased to accommodate the needs of the overclock.
What is PCIe SSC?
What is PSS support?
Psychosocial Support (PSS) refers to the processes and actions that promote the holistic wellbeing of people in their social world. It includes support provided by family and friends. PSS can also be described as a process of facilitating resilience within individuals, families and communitie.
What is SSC in PCIe?
What is spread spectrum?
– Definition from WhatIs.com Spread spectrum is a form of wireless communications in which the frequency of the transmitted signal is deliberately varied. This results in a much greater bandwidth than the signal would have if its frequency were not varied.
What is the PCIe spread spectrum BIOS?
This “ spreads out ” the power output and “ flattens ” the spikes of signal waveform, keeping them below the FCC limit. The PCIE Spread Spectrum BIOS feature controls spread spectrum clocking of the PCI Express interconnect. When set to Down Spread, the motherboard modulates the PCI Express interconnect’s clock signal downwards by a small amount.
What is spread spectrum control on a motherboard?
Spread Spectrum Control. Spread spectrum controls are really added to motherboards for one purpose only – they are sometimes needed so that a device for sale within the US can include a legitimate Declaration of Conformity stating compliance with Part 15 of the Federal Communications Commission (FCC) Rules.
What does it mean to spread a radio signal?
Techniques known since the 1940s and used in military communication systems since the 1950s “spread” a radio signal over a wide frequency range several magnitudes higher than minimum requirement.