Asus P4B-LS - Manual (Page 41)

ASUS P4B-LS motherboard user guide 2-19
3. CPU frequency selection (SWITCH Switches 5-9)
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).
Figure 2-24 CPU Frequency Settings
Set the CPU frequency only to the recommended settings.
Frequencies other than the recommended CPU bus frequencies are
not guaranteed to be stable.
To select the CPU external frequency using the DIP switches, ensure
that the JEN jumper is set to jumper mode.
P4B-LS
®
SWITCH
P4B-LS CPU
External Frequency Selection
100MHz
ON 12345
6789
1
0
105MHz
ON 12345
6789
1
0
111MHz
ON 12345
6789
1
0
120MHz
ON 12345
6789
1
0
33MHz 35MHz 37MHz 40MHz
120MHz
ON 12345
6789
1
0
125MHz
ON 12345
6789
1
0
133MHz
ON 12345
6789
1
0
30MHz 31MHz 33MHz
CPU
PCI
CPU
PCI