Asus M4A89TD PRO/USB3 - CPU Ratio; DRAM Frequency; CPU;NB Frequency; HT Link Speed

ASUS M4A89TD PRO Series
3-17
Chapter 3
3.5.4 CPU Ratio [Auto]
Allows you to set the ratio between the CPU Core Clock and the FSB Frequency. Use the
<+> and <-> keys to adjust the ratio. The valid value ranges vary according to your CPU
model.
3.5.5 DRAM Frequency [Auto]
Allows you to set the DDR3 operating frequency. The conguration options vary with the CPU
Bus Frequency item settings.
Selecting a very high DRAM frequency may cause the system to become unstable! If this
happens, revert to the default setting.
3.5.6 CPU/NB Frequency [Auto]
Allows you to select the CPU/NB frequency.
Conguration options: [Auto] [1400MHz] [1600MHz] [1800MHz] [2000MHz]
3.5.7 HT Link Speed [Auto]
Allows you to select the HyperTransport link speed.
Conguration options: [Auto] [200MHz] [400MHz] [600MHz] [800MHz] [1000MHz] [1200MHz]
[1400MHz] [1600MHz] [1800MHz] [2000MHz]
3.5.8 DRAM Timing Conguration
The conguration options for some of the following items vary depending on the DIMMs
you install on the motherboard.
DRAM CAS# Latency [Auto]
Conguration options: [Auto] [4 CLK] – [12 CLK]
DRAM RAS# to CAS# Delay [Auto]
Conguration options: [Auto] [5 CLK] – [12 CLK]
DRAM RAS# PRE Time [Auto]
Conguration options: [Auto] [5 CLK] – [12 CLK]
DRAM RAS# ACT Time [Auto]
Conguration options: [Auto] [15 CLK] – [30 CLK]
DRAM READ to PRE Time [Auto]
Conguration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM Row Cycle Time [Auto]
Conguration options: [Auto] [11 CLK] – [41 CLK]