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Core Frequency = CPU
Clock * CPU Ratio
PCI Clock = CPU FSB Clock / Clock Ratio
Clock = PCI Clock x 2
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 2.4G
2400MHz
100MHz
400MHz
24x
Pentium 4 2.4G
2400MHz
133MHz
533MHz
18x
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
Warning: Intel
®
845G (MX4G-R) chipset
supports maximum 400/533MHz
(100/133MHz*4) system bus and 66MHz
AGP clock; higher clock setting may cause
serious system damage. Please be
informed that CPU FSB400 does not
support DDR333.
Warning: To avoid possible CPU damage caused by
overheating, an automatic shutdown of system had been
especially designed on this motherboard. System would
be automatically power off when this motherboard with
implementation of THERMTRIP circuit detected a CPU
temperature above 135 degree.