Overlocking my i5-7600k with Gigabyte Z170-Gaming K3-CF

SmokuZnadPotoku

Prominent
Apr 1, 2017
4
0
510
Hello there. I was trying to do some basic overlocking with internet tutorials. I used program: Intel Extreme Tuning Utility. That's what I made:

Processor Core Ratio: 46x multiplier (4.58GHz)
Processor Cache Ratio: 44x multiplier (4.38GHz) - I've read that I should keep 1x or 2x multipliers below Core Ratio
Core Voltage: 1.350V

My maximum temperatures are 80°C at Stress Test. The problems are:

1. What should I do with VCore (I guess it should be lowered) to make it better and safier for more years?
* I tried to lower it to 1.30, but temperatures were the same, but they were raising much faster, than with my current 1.35 VCore. I've also tried to set Default (for a moment, to check out) or about 1.20-1.25, and temperatures were just about 65°C (much better than 80°C but I know that setting "Default" is completely dangerous).

AND

2. If I would like increase it to 48x (4.78GHz) or even 50x (4.98GHz) multiplier, what should I do with VCore and how should I test it to be sure I'm doing good? (Eg. First I should lower to 1.25VCore, then raise it by 0.05 and make new Stress Test everytime, and finally choose the best option).
* To be honest I would like to have at least 4.8-5.0GHz overlocked but I won't do it, for sure, without any help.

Please, give me some instructions to those 2 problems (questions). If problem nr 2 would be too risky for my computer, than jest help me with problem number 1 but I've read I could easily achive even 5.0GHz with no risk.

PS. My Power Suply is SilentiumPC Vero M1 600W 80Plus (SPC117) and I have 16 GB RAM DDR4.
 
Solution
How high you can oc a I5-7600K is determined by your luck in getting a good chip.
As of 1/13/17
What percent of samples can get an overclock
at a vcore around 1.4v.
I5-7600K
5.1 28%
5.0 52%
4.9 72%

I would OC using the bios.
Keep all voltages on auto and gradually raise the multiplier.
Stress test monitoring the vcore you get and the temperature.
The vcore necessary to support the multiplier will increase.
It is the vcore that determines the need for cooling.
Keep the temperature under load at 85c. or less, and keep the vcore at 1.4v for safety.
Unless your case or cooler is poor, you will run out of safe vcore before you run into thermal limits, even with a simple air cooler.
Implement adaptive voltage and speedstep so that the...
How high you can oc a I5-7600K is determined by your luck in getting a good chip.
As of 1/13/17
What percent of samples can get an overclock
at a vcore around 1.4v.
I5-7600K
5.1 28%
5.0 52%
4.9 72%

I would OC using the bios.
Keep all voltages on auto and gradually raise the multiplier.
Stress test monitoring the vcore you get and the temperature.
The vcore necessary to support the multiplier will increase.
It is the vcore that determines the need for cooling.
Keep the temperature under load at 85c. or less, and keep the vcore at 1.4v for safety.
Unless your case or cooler is poor, you will run out of safe vcore before you run into thermal limits, even with a simple air cooler.
Implement adaptive voltage and speedstep so that the multiplier and vcore will reduce when the cpu is not under max load.
Monitor vcore with CPU-Z.
OCCT is a decent tester; prime95 and IBT are not realistic.
Under normal usage, you will be nowhere near your stress test levels for long.
 
Solution

SmokuZnadPotoku

Prominent
Apr 1, 2017
4
0
510
Thanks, I'll try that solution and will see what I will be able to do.

About those samples: So maybe to have less risk I'll just keep my OC at 4.8GHz, it's still high enough for games, even those better.
 

SmokuZnadPotoku

Prominent
Apr 1, 2017
4
0
510
One more question:
When I tried to set my Ratio to 4.6GHz and VCore to Auto, it used only about 1.25V, so why should I use 1.34V while having (currently) only 4.2 GHz? Why people say that more VCore (only to some point) is better? More V = more temperature. It was running with 1.25V and much better results (4.6GHz), so what's the point of using much more Volts and increasing temperature of that? Where's the risk? Can somebody explain me that? Or maybe I'm just doing something wrong?