Page : 13
Chapter 2
Hardware Configuration
2
JP2 CPU Speed Selectors
The mainboard has a clock generator that lets you choose the CPU
frequency by settings jumper JP2. You can set CPU speed to 66/100
MHz as shown below :
CPU
JP2
100 MHz
1-2
66 MHz
2-3
JP1 CPU Internal Clock Speed Selectors
CPU
A
B
C
D
x 3.0
Short
Open
Short
Short
x 3.5
Open
Open
Short
Open
x 4.0
Short
Short
Open
Short
x 4.5
Open
Short
Open
Short
x 5.0
Short
Open
Open
Short
x 6.0
Short
Short
Short
Open
Intel CPU
Ratio
Bus Freq.
Pentium II-233
3.5 x
66MHz
Pentium II-266
4.0 x
66MHz
Pentium II-300
4.5 x
66MHz
Pentium II-333
5.0 x
66MHz
Pentium II-300
3.0 x
100MHz
Pentium II-350
3.5 x
100MHz
Pentium II-400
4.0 x
100MHz
Pentium II-450
4.5 x
100MHz
Celeron-266
4.0 x
66MHz
Celeron-300
4.5 x
66MHz
FAN1 CPU FAN POWER
Pin
Description
1
Ground
2
+12VDC
3
FAN Speed Sensor
B
C
A
D
P3
P1
P2
JP2
P2
P3
P1
Содержание MBX8440
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