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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 DIP Switches
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.
®
NR-LSR CPU
External Frequency Selection
ASUS NR-LSR motherboard user guide
CLKSW
5
4
3
2
OFF
ON
ON
U78
8
7
6
5
4
3
OFF
ON
NR-LSR
CLKSW
5
4
3
CPU
100MHz
CPU
NR-LSR
1.Frequency Selection
2.Frequency Selection
1
3.Frequency Selection
4.Frequency Selection
5.Spread Spectrum
1.Reserved
2.Reserved
2
1
3.Reserved
4.Reserved
ON
5.Frequency Multiple
6.Frequency Multiple
7.Frequency Multiple
8.Frequency Multiple
2
1
5
4
3
2
1
5
4
3
2
ON
ON
ON
101MHz
103MHz
5
4
3
2
1
5
4
3
2
1
ON
ON
105MHz
110MHz
1
2-13
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