G3258 Overclock - Adaptive vs Override?

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Hi, i recently purchased a g3258 for overclocking. This is my first Intel CPU and also my first time overclocking. I was just wondering, is the adaptive voltage function in the bios functional? I am asking this because i didnt realize i had it on adaptive, and i had set the voltage to 1.215v with a 4.9ghz OC and it booted up fine. I realized this afterward and changed it to override and it crashed so i had to bump it up to 1.225v with a 4.5 Ghz OC. Also, when i used CPU-Z to check my clock speed and voltage on my adaptive overclock, it showed the stock 3.2 ghz and .144v, but on my task manager, it showed the correct oc. Even on the overide oc, the voltage was still on .144v. I am really confused, is adaptive a real overclock?

 

[dsr07mm]

Adaptive voltage is funcional in bios.
CPU-Z showed stock speeds during idle most likely, try running game or anything which will use CPU and you will see that cores are going up all the way on number on which one you clocked CPU. Those are intel "power saving options" which you can turn and lock cores on exact clock, but that isnt going to increase performance or anything like that. You can also try HWiNFO64/32 for checking cores/voltages etc.

Personally for my i7 4770k I do use override voltage, 1.125v in my case but during idle my voltage is 0.136v most of the time. So make sure to check your overclock once when you boot system with Prime95 or some rendering, just to see voltage/cores at full power.

 

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so if i put 4.9 ghz with adaptive, its actually running at 4.9?

 

[dsr07mm]

so if i put 4.9 ghz with adaptive, its actually running at 4.9?

Yes but at full load. Cores will drop frequency when they are idle or they dont require 4.9ghz if power saving options are enabled in bios. You can easily check that with CPU-Z, just start software, then run game in window mode in some really low resolution and you will see cpu rising to 4.9 if everything is fine, and then during loading screens both voltage and mhz will drop because they are not needed then. Thats adaptive, rising when it's needed, dropping when its not needed while override will keep same voltage all the time and perhaps its little more stable for overclock.