Overlock 3770k / ASUS P8Z77-V PRO+THUNDERBOLT

[nature1ders]

Just wanted to know what you think I should do in regards to overclocking.

Someone suggested I change Duty Control to Extreme because T.Probe can be inaccurate over time.

I also set CPU Power Phase Control to ASUS Optimized.

Do you think I should lower the CPU PLL Voltage? Didn't seem to effect the temps on full load when I tried it =/ it's 1.8 now.

I just want to overclock but with stock voltages, maybe even lower some if I can. I thought someone said they set 4.3 ghz on stock voltages but I am not sure how ASUS Suite II reacts when you up the frequency, does it try adapting the voltages itself?

I've also learned it is based on the P8Z77-V not the P8Z77-V Pro so lacks the 12 phase power of the pro, I think it has 8 phases.

I'm using the Hyper Evo 212 and full load right now is 70C using Prime95 small FFTs

Alright bye

 

[Vectronic]

According to this, it's 8+4, but without really looking into it's it's probably 4 or 6 real phases.

But anyways... 70C at stock?

You could probably do 4.4GHz @ 1.2 volts... but you could "probably" be living under the ocean.

Use the BIOS for overclocking, go into it, see what it says it's using for voltage/VCore, set it to Fixed at that voltage, increase the multiplier by 1... boot, do a quick 3 to 5 minute "stress" test... nothing crashes, temps are ok, reboot... up the multiplier by 1... repeat...

1. If it crashes, but temps are ok, up the voltage by 0.02... test again.
2. If it doesn't crash, but temps are high... reduce voltage by 0.01... test again.

If 1 passes, up the multiplier... test again.
If 1 crashes, up the voltage by 0.01... test again.
If 2 passes, well leave it there I guess, do some more thorough testing.
If 2 crashes, reduce multiplier by 1, test again.

Once you've found a good speed Vs temp spot, then play around with reducing PLL, Offsets, LLC... whatever "optimized" settings there might be.

VTT/PCH/PIO/VCCSA voltages don't really make much of a temp difference at "normal" overclocks, and have very little change in stability as far as I have tested, but it depends largely on your board, CPU, RAM, etc, etc.

 

[Idontcare]

Someone suggested I change Duty Control to Extreme because T.Probe can be inaccurate over time.

I also set CPU Power Phase Control to ASUS Optimized.

Do you think I should lower the CPU PLL Voltage?

On asus mobos you do not want to set duty control to extreme if you can avoid it.

Setting duty control to extreme results in the bios preventing any of the idle power saving features to be enabled, the cpu won't downclock or reduce its voltage at idle.

I go one notch below extreme for duty cycle.

Using optimized for phase control is ideal, keep that.

As for PLL voltage, I would leave that at default. Changing it provides no tangible benefits and the last thing you want to do is introduce an uncontrolled variable into a situation already full of unknowns.

 

[nature1ders]

I added an offeset of -0.100 to see how this effected the temps, brought them from 70c full load to 64c full load at 4ghz. CPU-Z tells me the core voltage is 0.984

This is all very curious, I will try using the offset and gradually upping the multipler.

Are you sure about setting Duty Control to Extreme because it does show the Core Voltage lowers when I stop Prime95

 

[Idontcare]

Are you sure about setting Duty Control to Extreme because it does show the Core Voltage lowers when I stop Prime95

If you put a voltmeter on the board you'd see it. CPUz reports the voltage as being lowered, but when you measure it physically you see that it has not.

CPUz is a nice tool provided you know when you can trust it versus knowing when you should discount it. Trust, but verify

 

[nature1ders]

I might settle for 4ghz with a negative offset of -0.50 it brings temps to 67C full load and seems like enough, I'd rather have it higher but 70C+? I tried using +0.50 and settings 4.1 it seemed to get to 80C. I'll experiment more