Foxconn NFPIK8AA-8EKRS - Manual (Page 58)

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Chapter 3 BIOS Description
1T/2T Memory Timing (Default: Auto)
This item controls the SDRAM command rate. Selecting [Auto] allows SDRAM
signal controller to run at 1T (T=clock cycles) rate. Selecting [1T] makes SDRAM
signal controller run at 2T rate.
Memclock index value (Mhz) (Default: Auto)
This item is used to set memclock value.
CAS# latency (Tcl) (Default: Auto)
This item controls the CAS latency, which determines the timing delay (in
clock cycles) before SDRAM starts a read command after receiving it.
Min RAS# active time (Tras) (Default: Auto)
This item determines the time RAS takes to read from and write to a memory cell.
RAS# to CAS# delay (Trcd) (Default: Auto)
When DRAM is refreshed, both rows and columns are addressed separately.
This setup item allows you to determine the timing of the transition from RAS
(row address strobe) to CAS (column address strobe). The less the clock cycles,
the faster the DRAM performance.
Row precharge Time (Trp) (Default: Auto)
This item controls the number of cycles for Row Address Strobe (RAS) to be
allowed to precharge. If insufficient time is allowed for the RAS to accumulate