Figure 4. Bclk Frequency Select Circuit - Intel ® Core i7 User Manual

CPUSTP# is not supported as the requirement is to have this clock always running during
buffered mode.

Figure 4. BCLK Frequency Select Circuit

The clocks on the motherboard are provided by the chipset which uses four clocks from CK505
as inputs and use these as a reference to generate all the other platform clocks. A general
block diagram is shown in Figure 5.
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