Intel i5 4670k optimal voltage?

Prolip

Honorable
Jul 16, 2013
28
0
10,530
Hello! I have recently got the intel i5 4670k and am looking into overclocking however after some attempts, I'm unsure what I should do. These are my system specs:

CPU: Intel i5 4670k
Motherboard: MSI Mpower Max Z87
CPU cooler: Noctua NH-D14
GPU: MSI GTX 770
PSU: Corsair HX850
Case: CM storm trooper
RAM: 2x4GB Corsair Vengeance Pro 1600MHz

I am using the RAM at 1333MHz and 1.5V. At stock speeds and 100% load (using Aida64) the cores run at an avarage of around 50 C and 1.2V. I tried overclocking and got to 4.4GHz using 1.2V, then 4.5GHz using 1.25V. I then tried 4.6 but the voltage wasn't enough. At 4.5GHz it run at an avarage of around 60 C but momentarily reached 77 C. My question is, can I increase the voltage to something like 1.3V and still have a healthy system? Will it shorten my CPU's lifespan to an extent where I should worry about it (I'm planning on keeping this system for 5-7 years)?
 
Solution
Give it a try, if stable try lowering it a little at a time say from 1.3 to 1.29 then 1.28 etc, then can even go to tenths and hundreths like 1.28 is stable but 1.27 isn't, then try 1.279, down to 1.278, etc