RAM and CPU voltage

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AtomicDude66

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Nov 25, 2016
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i just built my pc today and i wanted to check my cpu and ram's voltage.
i have an i7 6700k, and 16 gb ram ddr4(4x4) 2666 mhz.
my motherboard's ram frequency is 2133 stock but i set my ram to 2666mhz. and i noticed that the ram's voltage went from 1.2v to 1.35v. is it ok? should i change it to 1.2?
i also playe a little bit with the EZ tuning wizzard ( i have an asus z170 a motherboard) and i OC'ed my CPU i booted up my pc but then i went back to the default.
after that i noticed that my cpu's voltage, that i think its supposed to be 1.2v stock, was stayin at around 1.35v 1.4v. i changed it back to 1.2v but i want to know if its ok to keep the voltage on auto (the max voltage that my motherboard can set is 1.7v).
so should i change my ram voltage back to 1.2 and the cpu voltage back on auto?
 
Solution
Mikel_4
I assumed your PSU is suffice

    ■ No, don't revert to 1.2, some DDR4 has XMP preset (profile 1 and 2), your best chance is by increase timings ( CAS, tRAS, .... by + 1) from listed SPD, save and exit, test stability in windows, if stable, restart and increase voltage by 0.5 and increase speed to 2400, save and exit, test, and so on until you find unstable preset.
    ■ Do not set to 1.7, your CPU sample maybe different from other tested working 1.45 v samples, 1st make sure CPU cooler fan(s) is at 100% PWM, start slow by increasing by +1 (X multiplier), save and exit, test stability in windows,....find unstable preset.
    ■ If within the process the PC is frozen, kill power, clear CMOS, start PC enter BIOS, load default BIOS value, repeat the...
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Mikel_4

Mikel_4

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Oct 15, 2016
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I assumed your PSU is suffice

    ■ No, don't revert to 1.2, some DDR4 has XMP preset (profile 1 and 2), your best chance is by increase timings ( CAS, tRAS, .... by + 1) from listed SPD, save and exit, test stability in windows, if stable, restart and increase voltage by 0.5 and increase speed to 2400, save and exit, test, and so on until you find unstable preset.
    ■ Do not set to 1.7, your CPU sample maybe different from other tested working 1.45 v samples, 1st make sure CPU cooler fan(s) is at 100% PWM, start slow by increasing by +1 (X multiplier), save and exit, test stability in windows,....find unstable preset.
    ■ If within the process the PC is frozen, kill power, clear CMOS, start PC enter BIOS, load default BIOS value, repeat the steps to where freeze occurred, after two times trial, then it must not getting to that speed, so one preset down is your stable CPU and RAM speed.

You realize you don't have to have it OC'd all the time, maybe in time where you need to complete task faster, the most prone component to degrade after OC is capacitors, one degrade capacitor will effect all power related component such as inductor/mosfet, VRM, resistor, etc.
 
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Solution
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AtomicDude66

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Nov 25, 2016
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0
4,510


 
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