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A
A
X
X
4
4
T
T
-
-
5
5
3
3
3
3
P
P
r
r
o
o
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
S
S
u
u
p
p
p
p
o
o
r
r
t
t
e
e
d
d
C
C
P
P
U
U
F
F
r
r
e
e
q
q
u
u
e
e
n
n
c
c
y
y
Core Frequency = CPU
Clock * 4 * CPU Ratio
Clock = CPU Bus Clock / Clock Ratio
Clock = PCI Clock x 2
Note:
Since the latest
processor, Northwood, would
detect the clock ratio
automatically, you may not be
able to adjust the clock ratio in
BIOS manually.
Northwood CPU
CPU Core
Frequency
FSB Clock
System Bus
Ratio
Pentium 4 1.6G
1600MHz
100MHz
400MHz
16x
Pentium 4 1.6G
1600MHz
133MHz
533MHz
12x
Pentium 4 1.7G
1700MHz
133MHz
533MHz
13x
Pentium 4 1.8G
1800MHz
100MHz
400MHz
18x
Pentium 4 2.0G
2000MHz
100MHz
400MHz
20x
Pentium 4 2.2G
2200MHz
100MHz
400MHz
22x
Pentium 4 2.26G
2260MHz
133MHz
533MHz
17x
Pentium 4 2.4G
2400MHz
100MHz
400MHz
24x
Pentium 4 2.4G
2400MHz
133MHz
533MHz
18x
Pentium 4 2.53G
2530MHz
133MHz
533MHz
19x
Pentium 4 2.66G
2660MHz
133MHz
533MHz
20x
Pentium 4 2.80G
2800MHz
133MHz
533MHz
21x
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