Gigabyte GA-7DXR User Manual - Page 14

CPU Speed Setup, Please depend on your CPU frequency to setup.

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CPU Speed Setup Installation Guide The system bus speed is selectable at 95~150MHz. The user can select the system bus speed by DIP switch CLK_SW or J19 & J20 (For 100MHz or 133MHz). (The frequency ratio depend on CPU) CLK_SW Select the System Speed: O: ON, X: OFF FREQ. SW1 SW2 SW3 SW4 SW5 SW6 CPU PCI AGP FS0 FS1 FS2 FS3 FS4 100-133 95 31.67 63.33 X O O O O X 100.99 33.66 67.33 O X O O O X (Default) 106 35.33 70.67 O X O X O X 114 38 76 O X O O X X 120 30 60 X X X O X X 133 33 66 O O O O O O 140 35 70 O X X X X O 150 37.5 75 X X X X X O ¼Please depend on your CPU frequency to setup. J19 & J20: CLK Speed (Optional) 1 J20 1 1 1 J19 1 100 MHz (Default) 133 MHz 1 66 MHz J19 J20 CLK Speed 2-3 close 2-3 close 100MHz(Default) 1-2 close 1-2 close 133MHz 1-2 close 2-3 close 66MHz 8

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Installation Guide
8
CPU Speed Setup
The system bus speed is selectable at 95~150MHz. The user can select the system bus speed
by DIP switch
CLK_SW
or
J19 & J20
(For 100MHz or 133MHz). (The frequency ratio depend
on CPU)
CLK_SW Select the System Speed:
O: ON,
X: OFF
FREQ.
SW1
SW2
SW3
SW4
SW5
SW6
CPU
PCI
AGP
FS0
FS1
FS2
FS3
FS4
100-133
95
31.67
63.33
X
O
O
O
O
X
100.99
(Default)
33.66
67.33
O
X
O
O
O
X
106
35.33
70.67
O
X
O
X
O
X
114
38
76
O
X
O
O
X
X
120
30
60
X
X
X
O
X
X
133
33
66
O
O
O
O
O
O
140
35
70
O
X
X
X
X
O
150
37.5
75
X
X
X
X
X
O
Please depend on your CPU frequency to setup.
J19 & J20: CLK Speed (Optional)
100 MHz (Default)
1
J19
J20
CLK Speed
2-3 close 2-3 close 100MHz(Default)
1-2 close 1-2 close 133MHz
1-2 close 2-3 close 66MHz
1
J20
J19
133 MHz
1
1
66 MHz
1
1