Switch p4b-e cpu external frequency selection – Asus P4B-E User Manual
Page 41
ASUS P4B-E motherboard user guide
2-19
3. CPU frequency selection (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-E
SWITCH
P4B-E CPU
External Frequency Selection
ON
1
2
3
4
5
6
7
8
91
0
ON
1
2
3
4
5
6
7
8
91
0
ON
1
2
3
4
5
6
7
8
91
0
ON
1
2
3
4
5
6
7
8
91
0
ON
1
2
3
4
5
6
7
8
91
0
ON
1
2
3
4
5
6
7
8
91
0
ON
1
2
3
4
5
6
7
8
91
0
CPU
PCI
100MHz
33MHz
105MHz
35MHz
111MHz
37MHz
120MHz
40MHz
133MHz
33MHz
125MHz
31MHz
120MHz
30MHz
CPU
PCI
CPU
PCI