Tata google mi je uspjesno izbacio link na ovaj clanak
http://www.planetanalog.com/features...leID=196800446
U kojem se objasnjava zasto je samo jedan kristal po ploci.
Citiraj:
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A typical motherboard PLL IC today can distribute over 20 clocks in six different frequency domains ranging from 33 MHz for the PCI interface, to above 400 MHz for the CPU, and uses only a single 14.318 MHz crystal resonator as reference.
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Pa eto nek se ta informacija nadje i ovdje ako jos nekom slucajno zatreba.