Foxconn 915G Manual page 35

vAuto Detect PCI Clk
This option is used to set whether the clock of an unused PCI slot will be
disabled to reduce electromagnetic interference.
vSpread Spectrum / PCI-E Spread Spectrum
If you enable spread spectrum, it can significantly reduce the EMI (Electro-
Magnetic Interference).
vCPU Clock Ratio
This option is used to set the ratio of an unlocked CPU.
vOverClock
This option is used to set overclock function.
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Chapter 3
SuperSpeed Menu
BIOS Description