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M
X
4
6
-
5
3
3
V
/
M
M
X
4
6
-
5
3
3
V
/
M
Northwood
CPU Core
CPU
Frequency
Pentium 4
1600MHz
1.6G
Pentium 4
1600MHz
1.6G
Pentium 4
1700MHz
1.7G
Pentium 4
1800MHz
1.8G
Pentium 4
2000MHz
2.0G
Pentium 4
2200MHz
2.2G
Pentium 4
2400MHz
2.4G
Pentium 4
2400MHz
2.4G
Pentium 4
2530MHz
2.53G
Warning: SIS 651 chipset support maximum 400MHz
(100MHz*4) / 533MHz (133MHz*4) system bus and
66MHz AGP clock; higher clock setting may cause
serious system damage.
X
4
6
-
5
3
3
M
a
x
X
4
6
-
5
3
3
M
a
x
FSB
System
Ratio
Clock
Bus
100MHz
400MHz
16x
133MHz
533MHz
12x
133MHz
533MHz
13x
100MHz
400MHz
18x
100MHz
400MHz
20x
100MHz
400MHz
22x
100MHz
400MHz
24x
133MHz
533MHz
18x
133MHz
533MHz
19x
O
O
Willamette
CPU Core
CPU
Frequency
Pentium 4
1500MHz
1.5G
Pentium 4
1600MHz
1.6G
Pentium 4
1700MHz
1.7G
Pentium 4
1800MHz
1.8G
Pentium 4
1900MHz
1.9G
Pentium 4
2000MHz
2.0G
Celeron
CPU Core
CPU
Frequency
Celeron
1700MHz
1.7G
Celeron
1800MHz
1.8G
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.
27
n
l
i
n
e
M
a
n
u
a
l
n
l
i
n
e
M
a
n
u
a
l
FSB
System
Clock
Bus
100MHz
400MHz
100MHz
400MHz
100MHz
400MHz
100MHz
400MHz
100MHz
400MHz
100MHz
400MHz
FSB
System
Clock
Bus
100MHz
400MHz
100MHz
400MHz
Ratio
15x
16x
17x
18x
19x
20x
Ratio
17x
18x
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