Should I disable BCLK spread?
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.
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 pcie spread spectrum in BIOS?
PCIE Spread Spectrum. Common Options : Down Spread, Disabled. Quick Review. 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.
What is PCI spread spectrum?
The PCI Express specification gives you the option of using a spread- spectrum clock (SSC). For spread-spectrum clocking, the PCI Express spec allows for modulation from 0 to minus-0.5 percent of nominal frequency, with a modulation rate in the range of 30kHz to 33kHz.
What is the advantage of spread spectrum modulation?
A collective class of signaling techniques are employed before transmitting a signal to provide a secure communication, known as the Spread Spectrum Modulation. The main advantage of spread spectrum communication technique is to prevent “interference” whether it is intentional or unintentional.
What is chirp spread spectrum modulation?
In digital communications, chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode information.
Should I enable PCI Express native power management?
Advanced\ Platform Misc Configuration\ PCI Express Native Power Management is recommended to be Disabled to prevent PCI Express devices from entering standby state to enhance both the device compatibility and performance as not all desktop based PCI Express devices support ASPM specification.
How does the mclk spread spectrum BIOS work?
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. The MCLK Spread Spectrum BIOS feature controls spread spectrum clocking of the memory bus.
How does spread spectrum clocking work on a memory bus?
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. The MCLK Spread Spectrum BIOS feature controls spread spectrum clocking of the memory bus.
How does spread spectrum clocking avoid EMC problems?
Spread-spectrum clocking avoids this problem by using one of the methods previously described to reduce the peak radiated energy and, therefore, its electromagnetic emissions and so comply with electromagnetic compatibility (EMC) regulations.
What kind of signal structure does spread spectrum use?
Spread-spectrum telecommunications. Spread spectrum generally makes use of a sequential noise -like signal structure to spread the normally narrowband information signal over a relatively wideband (radio) band of frequencies. The receiver correlates the received signals to retrieve the original information signal.