Asus Crosshair IV Formula - Manual (Page 87)

ROG Crosshair IV Formula 3-11
Profile Info : xxxxMHz–x-x-x-xx
This item appears only when you set the Ai Overclock Tuner item to [D.O.C.P.]
and displays the current DRAM profile information. The profile information varies
according to the DRAM O.C. Profile you’ve selected.
3.3.4 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.
3.3.5 DRAM Frequency [Auto]
Allows you to set the DDR3 operating frequency. The configuration 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.
3.3.6 CPU/NB Frequency [Auto]
Allows you to select the CPU/NB frequency.
Configuration options: [Auto] [1200MHz] [1400MHz] [1600MHz] [1800MHz]
[2000MHz]
3.3.7 HT Link Speed [Auto]
Allows you to select the HyperTransport link speed.
Configuration options: [Auto] [200MHz] [400MHz] [600MHz] [800MHz] [1000MHz]
[1200MHz] [1400MHz] [1600MHz] [1800MHz] [2000MHz]
3.3.8 DRAM Timing Configuration
The configuration options for some of the following items vary depending on the
DIMMs you install on the motherboard.
DRAM CAS# Latency [Auto]
Configuration options: [Auto] [4 CLK] – [12 CLK]
DRAM RAS# to CAS# Delay [Auto]
Configuration options: [Auto] [5 CLK] – [12 CLK] [5 CLK] – [12 CLK]
DRAM RAS# PRE Time [Auto]
Configuration options: [Auto] [5 CLK] – [12 CLK] [5 CLK] – [12 CLK]