Page 1
1997.03
I/O VccVJP6
Jumper Setting Quick ReferenceJumper Setting Quick Reference
Jumper Setting Quick Reference
Jumper Setting Quick ReferenceJumper Setting Quick Reference
J4: PS/2 mouse connector
J5: IR connector
PANEL1:
JP2: CMOS clear data jumper
1~2 short: Normal (default)
2~3 short: Clear CMOS data
JP3: PS/2 Mouse Enable/Disable
1~2 short: Normal (default)
2~3 short: PS/2 mouse disable
JP4: Password bypass control jumper
1~2 short: Normal (default)
2~3 short: Password bypass
JP5: CPU cooling fan header
Int. CPU Speed = Speed rate x System clock BF1 BF2
JP9: IDE activity LED header
75/90/100 = 1.5 x system clock 1~2 1~2
110/120/133 = 2 x system clock 2~3 1~2
150/166 = 2.5 x system clock 2~3 2~3
180/200 = 3 x system clock 1~2 2~3
For VRT (Voltage Reduction TechnolÂogy) processor (such as Intel P55C), the
split power plan (CPU's core voltage =
CPU's I/O voltage) design is required.
Core Vcc
V JP7 JP8
2.5
2.7
2.8
2.9
3
4
1
5
6
1
3.3
1
3.4
1
3.5
CPU-type
P54C-75 3.3 50 x1.5
P54C-90
P54C-120 x2
P54C-150 x2.5
P54C-100
Intel
P54C-133 x2
P54C-166 x2.5
P54C-200 x3
Pentium
N
N
w/MMX
@166MHz
Pentium
w/MMX
@200MHz
+
6x86-P120
@100MHz
+
6x86-P133
@110MHz
Cyrix
/IBM
AMD
1
We recommend the end user to choose the version 2.7 or later of Cyrix/IBM 6x86 processor.
2
For the AMD K5-PR120/133, it is also allowed to use ratio 'x1.5', which is equal to the Intel Pentium 90/100MHz settings.
3
For the AMD K5-150/166, it uses the same settings as the Intel Pentium 150/166MHz processor.
6x86-P150
@120MHz
6x86-P166
@133MHz
6x86L-P166
@133MHz
K5-PR75
K5-PR90
K5-PR100
K5-PR120
@90MHz
K5-PR133
@100MHz
K5-PR150
@105MHz
K5-PR166
@116.7MHz
+
+
+
CPU Power Voltage System freq. Freq. ratio
I/O
Core
Vcc
3.3 2.8
3.3 2.8
JP6 JP7 JP8 MHz CLK1, CLK2, CLK3 Speed rate BF1, BF2
Vcc
1
1
3.5
1
1
3.5
1
3.5
1
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1 1
1
60
1
66
1
50
1
55
1
60
1
66
1
50
1
60
1
66
1
60
1
66
1
60
1
66
1
x1.5
1
1
1
x1.5
1
1
1
1
x2.5
1
x3
1
x2
1
x1.5 Yes
1
x2 Yes
1
x1.75
Support
Status
Yes
Yes
Under
testing
Under
testing
1
2
3
V.1
30-A
586VGM1.2586VGM1.2
586VGM1.2
586VGM1.2586VGM1.2
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