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Gigabyte Z370 AORUS Gaming 7, OC settings

post #1 of 6
Thread Starter 
Hey everyone, new member (but not new to OC smile.gif)

I just got this motherboard, and I've seen contradicting settings in different articles.

Which settings are important to disable/enable/leave on auto, etc..?
As an example, I read a guide that suggested to disable power management, which would mean that the PC will ALWAYS run at max speed, which is not really relevant nowadays.

I'm not talking. Voltage/core/etc... But more looking for the other settings that are recommended across the board for any OC with the gb aorus g7

Thanks everyone!
Edited by psycodev - 10/22/17 at 12:15pm
post #2 of 6
http://www.overclock.net/t/1640228/aorus-z370-5ghz-oc-guide

If you disable C-states to get an accurate picture of what voltages are required it will be better for when you decide to use offset or power states.

Vt-d is for virtualization, which not everyone needs.
post #3 of 6
Thread Starter 
Thanks, good thread. But why disable power management? Also what do the c-states do? Do I leave them off?
post #4 of 6
Power management results in voltage fluctuation due to lower volts & clockspeeds at idle.

You want a more or less flat voltage with no clockspeed drop when figuring out how high it clocks.

The C-states need more work from your CPU/motherboard than C-states off.
C0 = operational / fully functional
C1 = Halt (idle) , can return to operational
C2 = "stop-clock" software-visible ,needs to wake up (clock signal stopped)
C3 = asleep
C6 = off (Cores, Ring and Uncore are powered down)


https://software.intel.com/en-us/articles/power-management-states-p-states-c-states-and-package-c-states

You might need more voltage than fixed when running offset/adaptive due to the way the motherboard loadline calibration and power delivery affects voltages. Good motherboards such as the Z370 Gaming 7 should be able to switch faster (less ramp up time) allowing you to go from idle to full clock and with less ripple (fluctuation / changes in voltage) should you decide to re-enable the C-states after getting an idea of how good your chip is. If you get a ripple-tastic board with 4 phases then you will likely need a higher voltage (because of a large voltage fluctuation, the minimum voltage is your actual required voltage + the fluctuation). This can be offset with a large capacitor bank but everything has pros/cons, such as the charge and discharge time.

A good motherboard for overclocking will have faster mosfets (low switching times such as rise time , fall time, turn on delay, turn off delay), lower resistance for the low side mosfet (less power loss), higher overall efficiency ratings (less power loss = less heat ; just be aware heat and temperature are not the same), more phases (less ripple) and not just 2 mosfets in parallel on one phase, higher amperage ratings on the components including mosfets + inductors/chokes.
Edited by AlphaC - 10/22/17 at 2:48pm
post #5 of 6
Thread Starter 
Thanks for the detailed explanation.

I plan to overclock, and then bring it back a little bit. Would be smart to disable the C-States to see the max overclock I can get, and then, after I bring the clock down a little, enable them again?
post #6 of 6
What I normally do is disable everything to see if the CPU is good (doesn't matter the platform) , find the voltage/power curve and do a power efficiency analysis.

You want the most performance sustainable for 24/7 on your cooling. You won't find that if you don't test it out thoroughly with every reasonable voltage (with a reasonable step size say 0.02V or 0.05V).
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