beautypg.com

7 switches, Asus nr-lsr motherboard user guide 2-13, Nr-lsr dip switches – Asus Motherboard NR-LSR User Manual

Page 39: Clksw, Nr-lsr cpu external frequency selection

background image

ASUS NR-LSR motherboard user guide

2-13

2.7

Switches

The following figure shows the location and default settings of the DIP
switches on the motherboard.

Keep the default settings for stable system operation.

NR-LSR

®

NR-LSR DIP Switches

ON

1.Frequency Selection
2.Frequency Selection
3.Frequency Selection
4.Frequency Selection
5.Spread Spectrum

1.Reserved
2.Reserved
3.Reserved
4.Reserved
5.Frequency Multiple
6.Frequency Multiple
7.Frequency Multiple
8.Frequency Multiple

CLKSW

OFF

U78

ON

1

2

3

4

5

6

7

8

ON

1

2

3

4

5

ON

OFF

NR-LSR

®

NR-LSR CPU
External Frequency Selection

ON

1

2

3

4

5

CLKSW

100MHz

CPU

ON

1

2

3

4

5

ON

1

2

3

4

5

ON

1

2

3

4

5

ON

1

2

3

4

5

101MHz

103MHz

105MHz

CPU

110MHz

1. CPU external frequency selection (CLKSW Switches 1-5)

This option tells the clock generator what frequency to send the CPU.
This allows the selection of the CPU’s external frequency (or Bus
Clock). The BUS Clock multiplied by the Frequency Multiple equals the
CPU’s internal frequency (the advertised CPU speed).

To select the CPU external frequency using the DIP switches, ensure
that the JEN jumper is set to jumper mode.