Matrox 4Sight-II Installation And Hardware Reference page 116

116 Appendix B: BIOS reference
• Spread Spectrum:
This item allows you to enable or disable the spread spectrum generator. This
device reduces the amplitude of electromagnetic emissions, by modulating the
frequency of the internal clock signals. This results in an increased bandwidth
occupied by the clock signals, which subsequently reduce electromagnetic
emissions.
By selecting Enabled, the spread spectrum generator is activated. By selecting
Disabled, the spread spectrum generator is deactivated, resulting in a smaller
bandwidth occupied by the clock signals, but greater electromagnetic emissions.
Options:
- Enabled (default)
- Disabled
• Fan Speed:
This item allows you to set the fan speed of your unit. Select Auto to let the BIOS
control the fan speed depending on the CPU temperature.
Options:
- Low
- High
- Auto (default)