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phc_basics [PHCwiki]
 

DRAFT

What is phc doing? How does it work? Those and related questions we answer here.

Modern CPUs can use different core voltages within a range given by the manufacturer. This is useful because CPU needs higher voltages on higher frequencies to switch between 0 and 1 fast and clean. Vice versa it can use less voltage on lower frequencies.

That is why those CPUs can and do vary the voltage if they switch the frequency.

The CPUs are produced in the fabrics of the manufacturers with a normal variation of quality. To have every CPU -no matter if the best or worse quality- work in every system they define parameters every CPU is going to work with. For example the core voltage.

Most times the sold CPUs have good qualitied and can work with less voltage. Here we jump in.

 
 
phc_basics.txt · Last modified: 2009/07/11 23:33 by thefallen
 
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