Asus CUV266 User Manual page 19

3. HARDWARE SETUP
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
CUV266 CPU External Frequency Selection
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.
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
(MHz) (MHz)
68 68
103 68
170 85
136 68
70 70
105 70
175 87
140 70
75 75
110 73
100 90
145 72
66 66
100 67
185 92
133 66
FREQ_SEL
ON
1 2 3 4 5
CPU 66MHz
AGP
66MHz
PCI 33MHz
PCI Frequency Selection Switches
(MHz) 1
34 [O N ]
34 [O FF] [O N ]
42 [O N ]
34 [O FF] [O FF] [O N ]
35 [O N ]
35 [O FF] [O N ]
43 [O N ]
35 [O FF] [O FF] [O FF] [O N]
37 [O N ]
36 [O FF] [O N]
45 [O N ]
36 [O FF] [O FF] [O N]
33 [O N ]
33 [O FF] [O N]
46 [ON]
33 [OFF]
ASUS CUV266 User's Manual
ON ON ON
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
100MHz 133MHz (JumperFree Mode)
67MHz 66MHz
33MHz 33MHz
2 3 4
[O N ] [O N ] [O N ]
[O N ] [O N ]
[O FF] [O N ] [O N]
[O N]
[O N ] [O FF] [O N ]
[O FF] [O N ]
[O FF] [O FF] [O N]
[O N] [O N ] [O FF] [O N ]
[O N ] [O FF] [O N]
[O FF] [O N] [O FF] [O N ]
[O FF] [O N]
[O N] [O FF] [O FF] [O N ]
[O FF] [O FF] [O N]
[OFF] [O FF] [O FF] [O N ]
[OFF] [O FF] [O FF] [O N]
5
[O N ]
[O N]
[O N ]
[O N]
[O N ]
[O N]
[O N ]
[O N]
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