Table 1-2
Intel P55C/P54C CPU Clock and Voltage Jumper
Setting
CPU Clock Jumper Setting
CPU Freq.
(MHz)
Host Bus
Freq.
Core/Bus
Clock
Host Clock
Jumpers
Clock Ratio
Jumpers
(MHz)
Ratio
JP5
JP7/JP14
JP8/JP15
JP20
JP21
P54C/150
60
5/2
1-2
1-2
2-3
2-3 2-3
P54C/133
66
2/1
1-2
1-2
1-2
2-3 1-2
P54C/120
60
2/1
1-2
1-2
2-3
2-3 1-2
P54C/100
66
3/2
1-2
1-2
1-2
1-2 1-2
P54C/90
60
3/2
1-2
1-2
2-3
1-2 1-2
CPU Voltage Jumper Setting
CPU Type
Core Voltage
H/W Monitor Voltage
JP19
JP3
JP26
JP24
JP23
P55C
OPEN
CLOSE
9-10 (2.8V)
1-2(2.8V)
2-3(3.3V)
P54C (STD)
CLOSE
OPEN
3-4 (3.3V)
--
2-3(3.3V)
P54C (VRE)
CLOSE
OPEN
1-2 (3.5V)
--
1-2 (3.5V)
Table 1-3
AMD K6/K5 CPU Clock and Voltage Jumper Setting
CPU Clock Jumper Setting
CPU Freq.
Host Bus Core/Bus Host Clock Jumpers
Clock Ratio
(MHz)
Freq.
Clock
JP7/ JP8/
Jumpers
(MHz)
Ratio
JP5
JP14
JP15
JP20
JP21
JP22
K6/PR233
66
7/2
1-2
1-2
1-2
1-2 1-2
1-2
K6/PR200
66
3/1
1-2
1-2
1-2
1-2 2-3
1-2
K6/PR166
66
5/2
1-2
1-2
1-2
2-3 2-3
1-2
K5/PR166
66
5/2
1-2
1-2
1-2
2-3
2-3
--
K5/PR133
66
2/1
1-2
1-2
1-2
2-3 1-2
--
K5/PR120
60
2/1
1-2
1-2
2-3
2-3 1-2
--
1-
10
User’s Guide