Frequency/Voltage Control; Dram Clock; Spread Spectrum; Figure 67: Illustration Of The Frequency/Voltage Control Screen - VIA Technologies VB7009 User Manual
Flexible mini-itx board with advanced multimedia, i/o, and connectivity features
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VIA VB7009 User Manual
6.24. Frequency/Voltage Control
Figure 67: Illustration of the Frequency/Voltage Control screen
6.24.1. DRAM Clock
This chipset supports synchronous and asynchronous mode between host clock and DRAM clock
frequency.
Settings: [By SPD, 400MHz, 533MHz]
6.24.2. Spread Spectrum
When the board's clock generator pulses, the extreme values (spikes) of the pulses create EMI
(Electromagnetic Interference). The Spread Spectrum function reduces the EMI generated by modulating
the pulses so that the spikes of the pulses are reduced to flatter curves.
Settings: [Disabled, +/- 0.1%, +/- 0.2%, +/- 0.3%, +/- 0.4%, +/- 0.5%, +/- 0.6%, +/- 0.7%, +/- 0.8%, +/- 0.9%]
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