Foxconn P67A User manual - Page 35
Chipset Performance Tuning
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3 Chipset Performance Tuning Aptio Setup Utility - C opyright (C) 2010 American Megatrends, Inc. Advanced Memory Multiplier Configuration Memory Multiplier Memory Multiplier [13.33] Memory Timing Configuration CAS# Latency(tCL) 9 Row Precharge Time(tRP) 9 RAS# to CAS# Delay(tRCD) 9 RAS# Active Time(tRAS) 24 → ← : Select Screen ↑ ↓ : Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit ESC: Exit Version 2.02.1205. Copyright (C) 2010 American Megatrends, Inc. ► Memory Multiplier This item is used to adjust the memory Clock Ratio. The available settimgs are: [Auto], [10.67], [13.33], [16], [18.67], [21.33]. ► CAS# Latency (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 controller 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. ► Row Precharge Time (tRP) This item allows you to select the row precharge time (in clock cycles). ► RAS# to CAS# Delay (tRCD) This item allows you to select a delay time (in clock cycles) between the CAS# and RAS# strobe signals. ► RAS# Active Time (tRAS) This item allows you to set the minimum RAS# active time (in clock cycles). 28