Foxconn Destroyer User Manual page 50

rameters, so that the motherboard memory controller (chipset) can better access the memory.
This item can be valid only when the "Over Clock Phase Select" is set to [Manual O.C.].
The following items can be valid only when the "DRAM Timing Selectable" is set to [Manual].
► 1T/2T Memory Timing
This item is used for memory timing. 1T/2T timing setup is a memory optimizing technology, it
can improve the memory performance by reducing the read delay of memory controller.
► CAS# Latency Time (tCL)
The number of memory clocks it takes a DRAM to return data after the read CAS_L is asserted
depends on the memory clock frequency. The value that BIOS programs into the memory con-
troller is a function of the target clock frequency. The target clock frequency is determined from
the supported CAS latencies at given clock frequencies of each DIMM.
► RAS to CAS Delay (tRCD)
This item allows you to select a delay time (in clock cycles) between the CAS and RAS strobe
signals.
► Row Precharge Time (tRP)
This item allows you to select the DRAM RAS precharge time (in clock cycles).
► Min RAS Active Time (tRAS)
This item allows you to set the minimum RAS# active time (in clock cycles).
► Write Recovery Time (tWR)
This item allows you to select the write recovery time (in clock cycles).
► Write to Read Delay (tWTR)
This item allows you to select a delay time (in clock cycles) between sending the last data from
a write operation to the memory and issuing a read command.
► RAS to RAS Delay (tRRD)
This item allows you to select a delay time (in clock cycles) between the RAS and RAS strobe
signals.
► Read to Precharge (tRTP)
Internal READ Command to PRECHARGE Command delay (in clock cycles).
► Row Cycle Time (tRC)
This item allows you to set the row cycle time (in clock cycles). tRC = tRAS + tRP.
► Trfc0/1/2/3 for DIMM0/1/2/3
Refresh to Refresh or Refresh to Active command interval.
Trfc0: auto-refresh row cycle time for logical DIMM 0.
Trfc1: auto-refresh row cycle time for logical DIMM 1.
Trfc2: auto-refresh row cycle time for logical DIMM 2.
Trfc3: auto-refresh row cycle time for logical DIMM 3.
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