VIA 82C693
MAINBOARD
AWARD BIOS SETUP
4-10
Auto Detect DIMM/PCI Clk:
( Default setting: Enabled )
When you select “Enabled”, the mainboard will detect the presence of devices on
DIMM and PCI slots. When there is no device presented, the clock on the related
DIMM and PCI slot will be disabled to reduce the electro magnetic interference (EMI).
Spread Spectrum Modulated:
( Default setting: Disabled )
When you select “Enabled”, the special feature designed in the Apollo chipset will be
triggered and reduce the EMI as mentioned above.
CPU Host/ PCI Clock:
( Default setting: “Default” )
This selection field is used to decide the CPU FSB and PCI clock. Basically, this
mainboard is designed by using the VIA 82C693 chipset and it supports both the
100MHz and 66MHz FSB frequency. When you select “default” setting, the system
BIOS will detect the CPU type and decide the FSB clock automatically. You may
also use this field to select different FSB clock and force your CPU to run at higher
speed. ( be sure to make sure your system devices are fast enough before you can
change to such setting)
When you have decided the FSB clock, you will have to use JP5, JP6 and JP7 to
select the CPU clock ratio to decide the CPU speed. please refer to Section 3.4 for
details of the jumper settings..
Beside the standard FSB selection, this mainboard also provides the manual option
for your choice. For example, you may select 103, 112 or 133MHz as your FSB clock
when you are using the 100MHz FSB processor. When you have installed the 66MHz
FSB processor, the selection available will be 66, 75 and 83 MHz. When you select
different FSB clock, the PCI clock will be changed at the same time. Please see the
following for details:
66MHz Processors
Host/PCI: 68/34 Mhz
Host/PCI: 75/37 Mhz
Host/PCI: 83/41 Mhz
100MHz Processors:
Host/PCI: 103/34 Mhz
Host/PCI: 112/33 Mhz
Host/PCI: 133/44 Mhz
