AOpen MX3L, Руководство пользователя

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Hardware Installation
2-4
2.2 Jumpers
With the help of VID signal and SMbus, this motherboard is jumper-less design.
2.2.1 Selecting the CPU Frequency
VID signal and SMbus clock generator provide CPU voltage auto-detection
and allow user to set CPU frequency through CMOS setup, no jumper or
switch is needed. The correct CPU information is saved into EEPROM, with
these technologies, the disadvantages of Pentium base jumper-less design
are eliminated. There will be no worry of wrong CPU voltage detection and no
need to re-open the housing if CMOS battery loss.
The CPU frequency selection is set by going into:
BOIS Setup Æ Chipset Features Setup Æ CPU Clock Frequency
(The possible setting is 66.8, 68.5, 75, 83.3 MHz)
BOIS Setup Æ Chipset Features Setup Æ 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 Celeron PPGA CPU Core Frequency Ratio External Bus Clock
Celeron PPGA 366 366MHz= 5.5x 66MHz
Celeron PPGA 400 400MHz= 6x 66MHz
Celeron PPGA 433 433MHz= 6.5x 66MHz
Warning: INTEL 440LX chipset supports maximum 66MHz
external CPU bus clock, the higher clock settings are for internal
test only.
These settings exceed the specification of LX
chipset, which may cause serious system damage .