Hardware Setup
9
CPU-type
CPU Power Voltage
System freq./Freq.
ratio
I/O Vcc
Core Vcc
MHz
Speed
rate
Intel/
AMD
P54C-90, K5-PR90
3.5
60
x1.5
P54C-120, K5-PR120 @90MHz
x2
P54C-150, K5-PR150 @105MHz
x2.5
P54C-100, K5-PR100
66
x1.5
P54C-133, K5-PR133 @100MHz
x2
P54C-166, K5-PR166 @116.7MHz
x2.5
Intel
P54C-200
x3
Pentium w/MMX 166MHz
3.3
2.8
x2.5
Pentium w/MMX 200MHz
x3
Pentium w/MMX 233MHz
x3.5
Cyrix
6x86-PR150 @120MHz
3.5
60
x2
6x86-PR166 @133MHz
66
x2
6x86L-PR166 @133MHz
3.3
2.8
x2
6x86L-PR200 @150MHz
75
x2
6x86MX-PR166 @150MHz
2.9
60
x2.5
6x86MX-PR166 @133MHz
66
x2
6x86MX-PR200 @166MHz
66
x2.5
6x86MX-PR200 @150MHz
75
x2
AMD
K6/166
3.3
2.9
66
x2.5
K6/200
x3
K6/233
3.2
x3.5
The on board switching power module can automatically distinguish between these
two types of processors. A protection circuit is employed such that if you enter
a single voltage value for a dual voltage CPU (or vice versa), the incorrect voltage
setting will not be made. Instead, the system will revert to a default setting of 3.3v
for single voltage CPUs and 2.8v/3.3v for dual voltage CPUs.
See below chart for details:
Figure 2-7 CPU Parameter Chart
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