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6VA+
3.5. CPU SPEED SETUP
The system bus frequency can be switched at 66MHz, 100MHz and 133MHz by
adjusting DIP SW2. The CPU frequency ratio can be switched from X3 to X9.5
by adjusting DIP SW1. The user can set up CPU speed for 300~866MHz
processors by adjusting SW1 and SW2 properly.
The CPU speed must match with the frequency RATIO. It will cause system
hanging up if the frequency RATIO is higher than CPU's.
SW1: (O:ON / X:OFF)
FREQ. RATIO
X 3
X 3.5
X 4
X 4.5
X 5
X 5.5
X 6
X 6.5
X 7
X 7.5
X 8
X 8.5
X 9
X 9.5
Set System Bus Speed
SW 2 :
CPU
PCI
1
AUTO
33.3
X
66
33.3
O
75
37.5
O
83
41.6
O
100
33.3
O
112
37.5
O
124
31
X
DIP SWITCH (SW1)
1
2
O
X
X
X
O
O
X
O
O
X
X
X
O
O
X
O
O
X
X
X
O
O
X
O
O
X
X
X
2
3
X
X
O
X
O
O
O
X
X
X
X
O
X
X
3-6
3
4
O
O
O
O
X
O
X
O
X
O
X
O
O
X
O
X
O
X
O
X
X
X
X
X
X
X
X
X
4
5
6
X
O
O
X
X
X
X
X
X
O
X
X
X
X
X
X
X
X
O
X
X
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