Installing CPU and Fan
JP23/JP29 HOST/PCI Clock Ratio
Plug CPU to slot1 connector. Be careful of CPU
orientation. Plug in the fan cable to the 3-pin
CPUFAN
or
FAN
connector.
GND
+12V
SENSOR
Auto-Detect CPU Core Voltage
This motherboard supports Pentium II / Pentium III CPU VID function. The CPU
core voltage will be automatically detected and the range is from 1.3V to 3.5V.
Setting CPU Frequency
The CPU frequency selection is set by going into:
BIOS Setup > Chipset Features Setup > CPU Voltage Setting
CPU Ratio
1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, and 8x
CPU FSB
66.8, 75, 83.3, 100, 103, 105, 110, 112, 115, 120, 124, 133, 140, and
150 MHz
Core Frequency = CPU FSB Clock * CPU Ratio
CPU Type
FSB Clock
Ratio
CELERON 300A
66MHZ
4.5x
CELERON 433
66MHZ
6.5x
Pentium II 350
100MHZ
3.5x
Pentium II 400
100MHZ
4x
Pentium II 450
100MHZ
4.5x
Pentium!!! 450
100MHZ
4.5x
Pentium!!! 500
100MHZ
5x
Pentium!!! 550
100MHZ
5.5x
Pentium!!! 600
100MHZ
6x
Pentium!!! 533
133MHZ
4x
Pentium!!! 600
133MHZ
4.5x
Pentium!!! 600E
100MHZ
6x
Pentium!!! 600EB
133MHZ
4.5x
Pentium!!! 650E
100MHZ
6.5x
Pentium!!! 667EB
133MHZ
5x
Pentium!!! 700E
100MHZ
7x
Pentium!!! 733EB
133MHZ
5.5x
Pentium!!! 750E
100MHZ
7.5x
Pentium!!! 800E
100MHZ
8x
Pentium!!! 800EB
133MHZ
6x
Note:
Some CPU fans do not
have sensor pin, so that cannot
support fan monitoring.
Warning:
VIA 694x chipset supports maximum 133MHz FSB and
66MHz AGP clock, higher clock setting may cause serious system
damage.
Home
This jumper is used to specify the relationship of PCI and
host clock. Generally speaking, we suggest you do not
change the default setting. But for overclocking, changing
these jumper settings becomes necessary. For example,
you must set JP29 to “5-6” and JP23 to “3-4” if you want to
overclock a 66MHz FSB clock CPU to 100MHz or higher.
Tip:
If your system hangs or fails to boot
because of overclocking, simply use
<Home> key to restore the default setting
(233MHz).
Clock Ratio
CPU (Host)
PCI
AGP
Memory
2X
66
33
66
PCI x2 or x3
3X
100
33
66
PCI x2 or x3 or x4
3X, overclocking
112
37.3
74.6
PCI x2 or x3 or x4
4X
133
33
66
PCI x3 or x4
4X, overclocking
150
37.5
75
PCI x3 or x4
1 2
Auto
(default)
JP23 JP29
1 2
5 6
5 6
JP23 JP29
4X
(133~150MHz)
1 2
5 6
1 2
5 6
3X
(100~124MHz)
JP23 JP29
1 2
5 6
1 2
5 6
2X
(66~83MHz)
JP23 JP29
1 2
5 6
1 2
5 6
