Warning:
INTEL i815E/i815EP chipset supports
maximum 133MHz FSB and 66MHz AGP clock,
higher clock setting may cause serious system
damage.
Tip:
If your system hangs or fails to boot
because of overclocking, simply use JP14 to
clear CMOS and restore to the default setting .
CPU Ratio
2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, and 8x
CPU FSB (By BIOS table)
66.8, 68.5, 75, 83.3, 100, 103, 112, 117, 124, 129, 133.3, 138, 143, 148, 150MHz.
CPU FSB (By manual
Adjustment)
66~166MHz by 1MHz stepping adjustment technology
Installing CPU and Fan
Plug CPU to Socket370. Be careful of CPU orientation.
Plug in the fan cable to the 3-pin
CPUFAN
or
FAN 1
connector.
Note:
Some CPU fans do not
have sensor pin, so that cannot
support fan monitoring.
Auto-Detect CPU Core Voltage
This motherboard supports Celeron / 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 > Frequency / Voltage Control > CPU Speed Setup
Core Frequency = CPU FSB Clock * CPU Ratio
CPU
CPU Core Frequency
FSB Clock
Ratio
Celeron 300A
300MHz
66MHz
4.5x
Celeron 600
600MHz
66MHz
9x
Pentium III 600E
600MHz
100MHz
6x
Pentium III 650E
650MHz
100MHz
6.5x
Pentium III 700E
700MHz
100MHz
7x
Pentium III 750E
750MHz
100MHz
7.5
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 1000EB
1GHz
133MHz
7.5x
JP23/JP29 FSB/PCI Clock Ratio
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.
1 2
Auto
(default)
JP23 JP29
1 2
5 6
5 6
JP23 JP29
4X
(133MHz)
1 2
5 6
1 2
5 6
3X
(100MHz)
JP23 JP29
1 2
5 6
1 2
5 6
2X
(66MHz)
JP23 JP29
1 2
5 6
1 2
5 6
Clock Ratio
CPU (Host)
PCI
AGP
Memory
2X
66
33
66
100
3X
100
33
66
100
3X, overclocking
110
36.6
73
110
4X
133
33
66
100
4X, overclocking
150
37.5
75
150
GND
+12V
SENSOR
