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M
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Flash ROM can be re-programmed by electronic signals. It is easier for BIOS to upgrade by a
flash utility, but it is also easier to be infected by virus. Because of increase of new functions,
BIOS size is increased from 64KB to 256KB (2M bit). AOpen AX5T is the first board to
implement 256KB (2Mbit) Flash ROM. Now flash ROM size is moving to 4M bit on AX6C (Intel
820) and MX3W (Intel 810) motherboard. , AOpen motherboard uses EEPROM for jumper-less
and battery-less design.
F
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FSB Clock means CPU external bus clock.
CPU internal clock = CPU FSB Clock x CPU Clock Ratio
2
2
I
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B
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I
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u
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See SMBus.
u
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C
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C
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95
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