ASUS CUV266 User’s Manual
19
3. HARDWARE SETUP
3. H/W SETUP
Motherboard Settings
External Frequency Table
The following table is for use by experienced motherboard installers only. Overclocking
can result in system instability or even shortening the life of the processor.
CPU
AGP
PCI
Frequency Selection Switches
(MHz)
(MHz)
(MHz)
1
2
3
4
5
68
68
34
[O N ]
[O N ]
[O N ]
[O N ]
[O N ]
103
68
34
[O FF]
[O N ]
[O N ]
[O N ]
[O N]
170
85
42
[O N ]
[O FF] [O N ]
[O N]
[O N ]
136
68
34
[O FF]
[O FF] [O N ]
[O N]
[O N]
70
70
35
[O N ]
[O N ]
[O FF] [O N ]
[O N ]
105
70
35
[O FF]
[O N ]
[O FF] [O N ]
[O N]
175
87
43
[O N ]
[O FF] [O FF] [O N]
[O N ]
140
70
35
[O FF]
[O FF] [O FF] [O N]
[O N]
75
75
37
[O N ]
[O N]
[O N ]
[O FF] [O N ]
110
73
36
[O FF]
[O N]
[O N ]
[O FF] [O N]
100
90
45
[O N ]
[O FF] [O N]
[O FF] [O N ]
145
72
36
[O FF]
[O FF] [O N]
[O FF] [O N]
66
66
33
[O N ]
[O N]
[O FF] [O FF] [O N ]
100
67
33
[O FF]
[O N]
[O FF] [O FF] [O N]
185
92
46
[ON]
[OFF]
[O FF] [O FF] [O N ]
133
66
33
[OFF]
[OFF]
[O FF] [O FF] [O N]
2) CPU External Frequency Selection (DIP_SW Switches 1–5)
This option tells the clock generator what frequency to send to the CPU, DRAM,
and the PCI bus. 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).
CUV266 CPU External Frequency Selection
FREQ_SEL
CPU
AGP
PCI
ON
1 2 3 4 5
ON
1 2 3 4 5
66MHz
66MHz
33MHz
ON
1 2 3 4 5
ON
1 2 3 4 5
(JumperFree Mode)
133MHz
66MHz
33MHz
100MHz
67MHz
33MHz
CUV266
0
1
0
1
0
1
WARNING!
Set the CPU frequency only to the recommended settings. Frequencies
other than the recommended CPU bus frequencies are not guaranteed to be stable.
Overclocking the processor is not recommended. It may result in a slower speed.
