Asus P5KC - Manual (Page 88)

4-18 Chapter 4: BIOS setup
DRAM Frequency [Auto]
Allows you to set the DDR2/DDR3 operating frequency. The configuration options
vary depending on the DIMMs you install on the motherboard.
(For DDR3 DIMMs) Configuration options: [Auto] [DDR3-800MHz]
[DDR3-833MHz] [DDR3-1000MHz] [DDR3-1066MHz] [DDR3-1111MHz]
[DDR3-1333MHz]
(For DDR2 DIMMs) Configuration options: [Auto] [DDR2-667MHz]
[DDR2-800MHz] [DDR2-889MHz] [DDR2-1066MHz]
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.
DRAM Timing Control [Auto]
Configuration options: [Auto] [Manual]
• The following sub-items apprear only when you set the DRAM Timing
Control item to [Manual].
• The configuration options for some of the following items vary depending
on the DIMMs you install on the motherboard.
CAS# Latency [6]
Configuration options: [3]~[6]
RAS# to CAS# Delay [5 DRAM Clocks]
Configuration options: [3 DRAM Clocks]~[10 DRAM Clocks]
RAS# Precharge [5 DRAM Clocks]
Configuration options: [3 DRAM Clocks]~[10 DRAM Clocks]
RAS# Activate to Precharge [15 DRAM Clocks]
Configuration options: [3 DRAM Clocks]~[34 DRAM Clocks]
TWR [Auto]
Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks]
TRFC [Auto]
Configuration options: [Auto] [20 DRAM Clocks] [25 DRAM Clocks]
[30 DRAM Clocks] [35 DRAM Clocks] [42 DRAM Clocks]
TWTR [Auto]
Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks]
TRRD [Auto]
Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks]
TRTP [Auto]
Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks]