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Example:
This example shows you how to overclock the CPU Internal Clock, DDR frequency
and FSB frequency for an Intel based mainboard. Note that the options that are
supplied with your version of the BIOS may vary slightly. The example is for
reference only.
Given:
Mainboard: Intel based mainboard
CPU: Pentium 4 (1.73 GHz, Fixed CPU Ratio = 13)
DDR: DDR400 (PC3200) SDRAM
CPU Speed = CPU Host Frequency * CPU Clock Ratio
cy * 4
cy * DDR:CPU Ratio
Overclocking:
CPU Ratio (Fixed) = 13
Frequency = 133
CPU Speed = 133 * 13 = 1729 MHz
= 133 * 4 = 532 MHz
CPU Ratio (fixed) = 13
t Frequency = 160
CPU Speed = 160 * 13 = 2080 MHz
= 160 * 4 = 640 MHz
FSB = CPU Host Frequen
DDR Speed = CPU Host Frequen
AGP/PCI/SRC Speed Setting sets to “66.68, 33.34, 100.02”
Before
CPU Host
DDR:CPU Ratio = 2.5
AGP/PCI/SRC Speed Setting show = 66.68 MHz/ 33.34 MHz/ 100.02 MHz
FSB
DDR Speeds = 133 * 2.5 = 333 (DDR333)
After Overclocking:
CPU Hos
DDR:CPU Ratio = 2.5
AGP/PCI/SRC Speed Setting = 66.68 MHz/ 33.34 MHz/ 100.02 MHz
FSB
DDR S
p
eeds = 160 * 2.5 = 400
(
DDR400
)