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Step 1: Install the Central Processing Unit (CPU)
Step1-1: CPU Speed Setup
The clock ratio can be switched by CK_RATIO and refer to below table.
Default Setting :
Auto (X X X X X X)
O: ON / X :OFF
1
SW1
ON
Default Setting: 100MHz
CK_RATIO
SW1
CPU CLOCK
100MHz
1
ON
100MHz : Fix FSB 200MHz CPU
Auto : Support FSB 266/333 MHz CPU
You must set SW1 to 100MHz when
you used FSB 200MHz CPU.
KT400A Series Motherboard
CLK_RATIO
RATIO
AUTO
(Default)
5x
5.5x
6x
6.5x
7x
7.5x
8x
8.5x
9x
9.5x
10x
10.5x
11x
11.5x
12x
12.5x
13x
13.5x
14x
15x
16x
AUTO
16.5x
OFF
17x
18x
MNote: In order to BIOS can auto detecting when
your CPU mutiplier over 18x, please adjust mutiplier
swich in CK Raito to "AUTO."
- 12 -
O: ON / X :OFF
1
2
3
4
5
6
X
X
X
X
X
X
O
O
X
O
O O
X
O
X
O
O O
O
X
X
O
O O
X
X
X
O
O O
O
O
O
X
O O
X
O
O
X
O O
O
X
O
X
O O
X
X
O
X
O O
O
O
X
X
O O
X
O
X
X
O O
O
X
X
X
O O
X
X
X
X
O O
O
O
O
O
O O
X
O
O
O
O O
O
X
O
O
O O
X
X
O
O
O O
O
O
X
O
X
O
X
O
X
O
X
O
O
X
X
O
X
O
O
O
O
X
X
O
O
X
O
X
X
O
X
X
O
X
X
O
O
O
X
X
X
O
X
O
X
X
X
O
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