Hi
ayeooo444 👍
There are Overclocking guides for your Haswell CPU. Here are two:
You can learn how to overclock your Core i5 4670K easily through this step by step guide. You should check your VCCIN voltage
idealcpu.com
https://www.overclockers.com/3step-guide-to-overclock-intel-haswell
OK first update your BIOS and Chipset if not already done so.
As you have a Corsair AIO (Please list the model) then install it and conduct a Baseline Stress test using Aida64 at stock frequency for 20mins. Take desktop photos at the 20min mark then post the results thru IMGUR. If at anytime temps go above 80C then stop the test.
I also use HWinfo64 to compare temps and other relevant info.
Check Your Rail voltages and temps on the T/Die to determine a decent stable Overclock and post results here.
Just a few words of advice. Don't attempt a max overclock in one hit and only make changes within Bios. Do not make any arbitrary changes without knowing the results.
If confused at any time then ask for an explanation.