PCchips M902 Series User Manual page 33

SDRAM CAS# This item determines the operation of
Latency SDRAM memory CAS (column address
strobe). It is recommended that you leave
this item at the default value. The 2T
setting requires faster memory that
specifically supports this mode.
SDRAM RAS# Select the number of CPU clocks
Precharge 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.
SDRAM RAS# to This field lets you insert a timing delay
CAS# 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.
SDRAM RAS# The precharge time is the number of
Precharge Delay cycles it takes for SDRAM to
accumulate its charge before refresh.
DRAM Integrity Select Parity or ECC (error-correcting
Mode code), according to the type of installed
DRAM.
Auto detect When this item is enabled, BIOS will
DIMM/PCI disable the clock signal of free
Clock DIMM/PCI slots.
CLK Spread Use this item to set the system bus
Spectrum spread spectrum for the installed
processor.
3: BIOS Setup Utility
29