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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
CPU: Pentium 4 (3.2 GHz, Fixed CPU Ratio = 16)
= 1.60
AGP/PCI/SRC Speed Setting show = 66.68MHz/ 33.34 MHz/ 100.02 MHz
= 200 * 16 = 3200 MHz
supplied with your version of the BIOS may vary slightly. The example is for reference
only.
Given:
Mainboard: Intel based mainboard
DDR: DDR333 SDRAM
CPU Speed = CPU Host Frequency * CPU Clock Ratio
FSB = CPU Host Frequency * 4
DDR Speed = CPU Host Frequency * DDR:CPU Ratio
AGP/PCI/SRC Speed Setting sets to “66.68, 33.34, 100.02”
Before Overclocking:
CPU Ratio (Fixed) = 16
CPU Host Frequency = 200
DDR:CPU Ratio
CPU Speed
FSB = 200 * 4 = 800 MHz
DDR Speeds = 200 * 1.60 = 320
After Overclocking:
CPU Ratio (fixed) = 16
CPU Host Frequency = 220
DDR:CPU Ratio = 1.60
AGP/PCI/SRC Speed Setting = 66.68 MHz/ 33.34 MHz/ 100.02 MHz
CPU Speed = 220 * 16 = 3520 MHz
FSB Speed = 220 * 4 = 880 MHz
DDR S
p
eeds = 220 * 1.60 = 352