SOLTEK SL-65LIV-T User Manual page 79

Auto Detect
DIMM/PCI CLK
Spread Spec-
trum Modulated
CPU Clock Thes items allows users to adjust CPU fequency.
CPU Skew
Adjust
CHIP Skew
Adjust
PCI Skew Adjust This item allows you to reduce PCI transfer rate.
SDRAM Skew
Adjust
3. Press <ESC> to return to the Main Menu when you finish setting up all
items.
To reduce the occurrence of electromagnetic
interference (EMI), the BIOS detects the presence
or absence of components in DIMM and PCI slots
and turns off system clock generator pulses against
empty slots.
When the system clock generator pulses, the
extreme values of the pulse generate excess EMI.
Enabling pulse spectrum spread modulation
changes the extreme values from spikes to flat
curves, thus reducing EMI. This benefit may in some
cases be outweighed by problems with timing-critical
devices, such as a clock-sensitive SCSI device.
This item allows you to reduce CPU transfer rate.
Users should leave this item at default value.
The choices: Disabled; 150ps; 300ps; 450ps.
Leave this field at default.
Users should leave this item at default value.
The choices: Disabled; 150ps; 300ps; 450ps.
This item allows you to reduce SDRAM transfer rate.
Users should leave this item at default value.
The choices: Disabled; 150ps; 300ps; 450ps.
79
Chapter 4 BIOS Setup