IBM SBC-659P Personal Computer User Manual


 
70 SBC-659P User Manual
Frequency/Voltage Control
Auto Detect DIMM/PCI CLK
This item allows you to enable/disable auto detect DIMM/PCI
clock. The choices: Enable/Disable
Spread Spectrum
This allows you to enable/disable the spread spectrum modulate.
When the system clock generator pulses, the extreme values of the
pulse generate excess EMI. Enabling pulse spectrum spread
modulation changes the extreme pulse spikes to flat curves thus
reducing EMI.
The choices: Enable, Disable
Clock By Slight Adjust
This item allows you to select the CPU clock from 166 MHz to
100 MHz or 99 MHz to 66 MHz depending on the CPU host
clock.
CPU Clock Ratio
This item allows you to select the CPU ratio.