DFI 661FX-MLV User Manual page 61

3
BIOS Setup
DRAM CAS Latency
This field is used to select the clock cycle of the SDRAM CAS
latency time. The option selected specifies the time before
SDRAM starts a read command after receiving it.
RAS Active Time (tRAS)
This field controls RAS# active to Protegra, and refresh to RAS#
active delay (in local memory clocks).
RAS Precharge Time (tRP)
This field controls RAS# precharge (in local memory clocks).
RAS to CAS Delay (tRCD)
Leave this field in its default setting.
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