AOpen MX64, Руководство пользователя

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Hardware Installation
2-4
2.2 Jumpers
With the help of the Pentium II Pentium III / Celeron VID signal and SMbus, this
motherboard is a jumper-less design.
2.2.1 Selecting the CPU Frequency
The Pentium II \ Pentium III \ Celeron VID signal and the SMbus clock
generator provide CPU voltage auto-detection and allow the user to set CPU
frequency through the CMOS setup, no jumpers or switches are needed. The
correct CPU information is saved into the EEPROM. With these technologies,
the disadvantages of the Pentium based jumper-less design are eliminated.
There will be no worry of wrong CPU voltage detection and no need to re-open
the housing if the CMOS battery is lost.
The CPU frequency selection is set by going into:
BOIS Setup
à
Chipset Features Setup
à
CPU Clock Frequency
(The possible setting is 66.8, 75, 83.3, 100, 105, 110, 112, 115, 120, 124, 133,
140, 150, MHz)
BOIS Setup
à
Chipset Features Setup
à
CPU Clock Ratio
(The possible setting is 1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x,
7.5x, and 8x)
Core frequency = Ratio * External bus clock
Intel Pentium II /
Pentium III CPU Core Frequency Ratio FSB Clock
Pentium II 233 233MHz= 3.5x 66MHz
Pentium II 266 266MHz= 4x 66MHz
Pentium II 300 300MHz= 4.5x 66MHz
Pentium II 333 333MHz= 5x 66MHz
Pentium II 350 350MHz= 3.5x 100MHz
Pentium II 400 400MHz= 4x 100MHz
Pentium II 450 450MHz= 4.5x 100MHz
Pentium III 450 450MHz= 4.5x 100MHz
Pentium III 500 500MHz= 5x 100MHz
Pentium III 550 550MHz= 5.5x 100MHz
Pentium III 533 533MHz= 4x 133MHz
Pentium III 600 600MHz= 4.5x 133MHz