User Guide
25
M
M
X
X
4
4
6
6
L
L
S
S
-
-
V
V
/
/
M
M
X
X
4
4
6
6
L
L
S
S
-
-
5
5
3
3
3
3
V
V
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
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 2.8G 2800MHz 133MHz 533MHz 21x
Warning: SIS 650GX / SIS 651 chipsets support
maximum 400MHz (100MHz*4) system bus and 66MHz
A
GP clock; higher clock setting may cause serious
system damage.
Willamette
CPU
CPU Core
Frequency
FSB
Clock
System
Bus
Ratio
Pentium 4
1.5G
1500MHz 100MHz 400MHz 15x
Pentium 4
1.6G
1600MHz 100MHz 400MHz 16x
Pentium 4
1.7G
1700MHz 100MHz 400MHz 17x
Pentium 4
1.8G
1800MHz 100MHz 400MHz 18x
Pentium 4
1.9G
1900MHz 100MHz 400MHz 19x
Pentium 4
2.0G
2000MHz 100MHz 400MHz 20x
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.
Celeron
CPU
CPU Core
Frequency
FSB
Clock
System
Bus
Ratio
Celeron
1.7G
1700MHz 100MHz 400MHz 17x
Celeron
1.8G
1800MHz 100MHz 400MHz 18x