i7 4790k max safe cache/vccsa voltages and others doubts

ppdemo

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May 15, 2013
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hi guys, like questions say , first, i need know max safe voltage for this options items:

cpu cache voltage
cpu system agent voltage(analog and digital I/O) is this the IMC?

i have a z97a mother, and i want to know what means vttddr option, I am confused if this is the IMC or VCCSA is?