Acer Veriton Z291G Service Guide - Page 27

Frequency/Voltage Control Field Spread Spectrum Processor Multiplier Description Value When the mainboard's clock generator pulses, the extreme values of the pulses creates EMI (electromagnetic interference). Set this field to Enabled to reduce this EMI level. This reduces interference problems with other electronics in the area. Note: Remember to disable the Spread Spectrum feature if you are overclocking. A slight jitter can introduce a temporary boost in clock speed causing the overclocked processor to lock up. Enabled Disabled This field is only visible if an engineering processor installed. It is only accessible when the EIST function is disabled. Veriton Z290G Service Guide 19