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Step 1: Set System Jumper (CLK_SW) & (CLK_RATIO)
The clock ratio can be switched by CLK_RATIO and refer to below table.The system bus frequency can
be switched at 100MHz and auto by adjusting CLK_SW.
Default Setting :
Auto (X X X X X X)
CLK_RATIO
6
5
4
3
2
CLK_SW
O N
OFF
AUTO : Supports FSB 400/333/266 MHz CPU
100MHz : Fix FSB 200MHz CPU
If you want to use a CPU with
200MHz FSB, please set CLK_SW
to 100MHz.
N400 Pro2 / N400 Series Motherboard
¥¼©R¦W-1
O N
CLK_SW
1
OFF
O N
AUTO
100MHz
14
CLK_RATIO
RATIO
1
2
AUTO
X
X
(Default)
5x
O
O
5.5x
X
O
6x
O
X
6.5x
X
X
7x
O
O
7.5x
X
O
8x
O
X
8.5x
X
X
9x
O
O
9.5x
X
O
10x
O
X
10.5x
X
X
11x
O
O
11.5x
X
O
12x
O
X
12.5x
X
X
13x
O
O
13.5x
X
O
14x
O
X
15x
O
O
16x
O
X
16.5x
X
X
17x
O
O
18x
X
O
Note: In order to BIOS can auto detecting when
your CPU mutiplier over 18x, please adjust mutiplier
swich in CLK_RATIO to "AUTO."
- 14 -
2005/5/5, ¤W¤È 11:35
O: ON / X :OFF
3
4
5
6
X
X
X
X
X
O
O
O
X
O
O
O
X
O
O
O
X
O
O
O
O
X
O
O
O
X
O
O
O
X
O
O
O
X
O
O
X
X
O
O
X
X
O
O
X
X
O
O
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
O
X
O
X
O
X
O
X
O
X
O
O
X
X
O
O
X
X
O
O
X
X
O
X
X
X
O
X
X
X
O
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