NEX 6620A User's Guide
Rev. B0 0301
BIOS Setup
4-26
Frequency/Voltage Control
Auto Detect DIMM/PCI Clk
Use this item to enable or disable the feature of auto detecting the clock frequency of the installed DRAM
DIMMs and PCI cards.
The Choice: Enabled, Disabled.
Spread Spectrum Modulated
This item is used to enable or disable the clock generator’s Spread Spectrum feature.
The Choice: Enabled, Disabled.
CPU Host/PCI Clock
This item allows you to set up the CPU/PCI clock, but this function depends on different CPU performance.
It is highly recommended to use the default setting by the CPU ID auto detect. The standard CPU Clock
will be 100MHZ or 133MHZ. If you set the wrong CPU clock cause the system can’t power on, please do
hardware clear the CMOS to reset the BIOS default value then setup the correct CPU clock. Or you can
press INSERT key to power on system to restore the BIOS default.
The Choice: Default, 100/33Mhz, 133/33Mhz.
CPU Ratio
This item allows you to set up the CPU clock ratio, but this function depends on different CPU performance.
It is only effective for those clock ratio haven’t been locked.
