This jumper is used to specify the relationship of PCI and FSB clock. Generally speaking, if
you are not an overclocker, we recommend you to set at the default setting.
Plug in the CPU fan cable to the 3-pin
CPUFAN
connector. If you have a housing fan,
you can also plug it on
FAN2
connector.
1 2
1 2
1 2
JP23 FSB Select Jumper
CPU Core Voltage Auto-Detection
This motherboard supports CPU VID function. The CPU core voltage will be automatically
detected. It is not necessary to set CPU Core Voltage.
Setting CPU Frequency
This motherboard is CPU jumper-less design, you can set CPU frequency through the
BIOS setup, and no jumpers or switches are needed.
BIOS Setup > Frequency/Voltage Control > CPU Host Clock (CPU/PCI)
Core Frequency = CPU FSB Clock * CPU Ratio
CPU Ratio
3x, 3.5x, 4x, 4.5x, …16x
CPU FSB
66.8, 75, 83.3, 100, 103, 105, 110, 112, 115, 120, 124, 133, and 150MHz
CPU
CPU Core Frequency
FSB Clock
Ratio
Celeron 533
533MHz
66MHz
8x
Celeron 566
566MHz
66MHz
8.5x
Celeron 600
600MHz
66MHz
9x
Celeron 667
667MHz
66MHz
10x
Celeron 700
700MHz
66MHz
10.5x
Celeron 800
800MHz
100MHz
8x
Celeron 900
900MHz
100MHz
9x
Celeron 1.2G
1.2GHz
100MHz
12x
Pentium III 800E
800MHz
100MHz
8x
Pentium III 850E
850MHz
100MHz
8.5x
Pentium III 533EB
533MHz
133MHz
4x
Pentium III 600EB
600MHz
133MHz
4.5x
Pentium III 667EB
667MHz
133MHz
5x
Pentium III 733EB
733MHz
133MHz
5.5
Pentium III 800EB
800MHz
133MHz
6x
Pentium III 866EB
866MHz
133MHz
6.5
Pentium III 933EB
933MHz
133MHz
7x
Pentium III 1G
1000MHz
133MHz
7.5x
Pentium III 1.13G
1.13GHz
133MHz
8.5x
Pentium III 1.2G
1.2GHz
133MHz
9x
Pentium III 1.3G
1.3GHz
133MHz
10x
5. Setting CPU Voltage & Frequency
4. JP23 Adjust FSB/PCI Clock
3. Installing CPU & Housing Fan
Home
Tip: If your system hangs or fails to boot because of overclocking,
simply use <Home> key to restore the default setting.
Warning: VIA PLE133 chipset supports maximum
133MHz FSB, higher clock setting may cause
serious system damage.
Note: Some CPU fans do not have
sensor pin, so that they cannot
support fan monitoring.
CPUFAN
FAN2
JP23 FSB Select
FSB=66MHz
FSB=100MHz
FSB=133MHz
Auto
Detection
(Default)
1 2
GND
+12V
SENSOR