3.HARDWARE SETUP

4)CPU External Frequency Setting (DSW Switches 1–4)

This option tells the clock generator what frequency to send to the CPU, SDRAM, and the chipset. This allows the selection of the CPU’s External frequency. The CPU External Frequency multiplied by the Frequency Multiple equals the CPU’s Internal frequency (the advertised CPU speed).

IMPORTANT:

1. To use this feature, check the JEN jumper settings: see Jumper/ JumperFree™ Mode (JEN) on the previous pages.

A7M266-D

DSW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

4

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

3

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

1 2

 

ON

 

 

 

1 2

 

ON

 

 

 

1 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU 100MHz

 

103MHz

105MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

3

 

 

 

 

 

3

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

1 2

 

ON

 

 

 

1 2

 

ON

 

 

 

1 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU

110MHz

115MHz

133MHz

A7M266-D CPU External Frequency Selection

Frequency Table
(MHz)

 

DSW

 

CPU

1

2

3

4

 

 

 

 

 

100

[ON]

[OFF]

[ON]

[ON]

103

[OFF]

[ON]

[OFF]

[ON]

 

 

 

 

 

105

[ON]

[OFF]

[OFF]

[ON]

110

[OFF]

[OFF]

[OFF]

[ON]

 

 

 

 

 

115

[OFF]

[OFF]

[ON]

[ON]

133

[ON]

[ON]

[ON]

[OFF]

WARNING! Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable. Overclocking your processor is not recommended. It may result in a slower speed and premature wearing of the processor.

3. H/W SETUP

Motherboard Settings

ASUS A7M266-D User’s Manual

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