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Chipset performance tuning – Foxconn P67A Series User Manual

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Chipset Performance Tuning

► 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 assert-
ed 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).


Version 2.02.1205. Copyright (C) 2010 American Megatrends, Inc.

Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc.

Memory Multiplier Configuration

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

Memory Multiplier

Advanced

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