The configuration options for the following sub-item vary depending on the

DIMMs you install on the motherboard.

eXtreme Memory Profile [Disabled]

This item appears only when you set the Ai Overclock Tuner item to [X.M.P.]. Allows you to select the X.M.P. mode supported by your Memory module.

Configuration options: [Disabled] [Profile #1] [Profile #2]

To obtain the best performance of the X.M.P. 1800/1600 DIMM, install only one DIMM on each memory channel. Refer to the table below for X.M.P. DIMM installation recommendation.

X.M.P. DIMM Installation Recommendation

X.M.P. DIMM Frequency

1800 MHz

1800 MHz

1600 MHz

1600 MHz

 

DIMM_A1

-

√

-

√

Sockets

DIMM_B1

-

√

-

√

DIMM_A2

√

-

√

-

 

 

DIMM_B2

√

-

√

-

4.4.2CPU Ratio Setting [Auto]

This item allows you to set the ratio between CPU Core Clock and FSB Frequency. The value is adjusted by typing the desired values using the numeric keypad and press the <Enter> key. You can also use the <+> and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the <Enter> key. If an invalid ratio is set in CMOS, then actual and setpoint values may differ.

4.4.3FSB Strap to North Bridge [Auto]

When set to [Auto], the FSB Strap will be adjusted automatically by FSB Frequency and DRAM Frequency.

Congifuration options: [Auto] [200MHz] [266MHz] [333MHz] [400MHz]

The following two items (FSB Frequency and PCIE Freuency) on the next page appear only when you set the Ai Overclock Tuner item to [Manual].

4-18

Chapter 4: BIOS setup