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Mainboard User's Manual
SDRAM RAS#
Precharge
SDRAM RAS# to
CAS# Delay
SDRAM RAS#
Precharge Delay
Hyper Threading
Function
Spread Spectrum
Auto detect
DIMM/PCI
Clock
26
Select the number of CPU clocks
allocated for the Row Address Strobe
(RAS#) signal to accumulate its charge
before the SDRAM is refreshed. If
insufficient time is allowed, refresh may
be incomplete and data lost.
This field lets you insert a timing delay
between the CAS and RAS strobe
signals, used when SDRAM is written
to, read from, or refreshed. Disabled
gives faster performance; and Enabled
gives more stable performance.
The precharge time is the number of
cycles it takes for SDRAM to
accumulate its charge before refresh.
If your P4 CPU is not HT CPU, this item
will be hidden.
If your P4 CPU is HT CPU, BIOS will
show this item. You can set "Disabled"
or "Enabled" to control HT CPU support
in O.S. Set "Enabled" to test HT CPU
function.
If you enable spread spectrum, it can
significantly reduce the EMI (Electro-
Magnetic Interference) generated by the
system.
When this item is enabled, BIOS will
disable the clock signal of free
DIMM/PCI slots.
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