Have I Overclocked Correctly?

[Matriplex]

Yes I'm sure that title made you roll your eyes.
Also, if this is in the wrong section please move it.

So I (finally) got my new system in and built it all. Last weekend I decided to try my first overclock. I did a bunch of research on general overclocking, and then got more specific with haswell chip articles (I have an i7 4770k with a Hyper 212 EVO cooler). At first I tried increasing the multiplier to 47 as a high starting point, which I never expected to work. It didn't. So I then, through trial and error, lowered it to 45 with a voltage of 1.5. My system boots up, everything works correctly, however I don't notice much of a difference in performance. In CPU-Z, it detects my voltage and in the multiplier box it says x8.0 (8 - 45). This doesn't really seem right. Is there some setting in UEFI that I have to turn on to enable to processor's multiplier to go up to 45?

I'd appreciate it if you bear with my noobiness 
Thanks.

Edit:
Shot of CPU-Z:

[Matriplex]

Feel free to kill me and destroy my soul for this shameless bump. If I'm being stupid and need to do more research because I'm missing something obvious please tell me.

[G4fr33man]

A few problems with your OC


1- 1.5 V is WAY to high, max safe voltage on Haswell is 1.3
2- Your cooler- The hyper 212 is without a doubt the best cooler in it's price range. That being said it is great for low end OCing ie: 4.0-4.2
anything higher you will need to invest in something else.
3- Haswell uses a crappy TIM (thermal interface compound) in between the CPU die and the heatspreader (the metal part of the CPU that is visible)most other CPUs are soldered. This means Haswell and Ivybridge CPUs don't dissipate heat very well. In other words they run HOT!!!!
Even with a high end custom WC loop you will hit a heat wall- the amount of voltage needed for the OC will be too much for any cooler to handle.




With the Hyper 212 you want to aim for 4.1-4.2 Its a healthy OC
1- Download these 2 programs - Prime 95 - HWmonitor
2-Enter BIOS set your current OC back to default
3-Turn multicore enhancement to manual
4-CPU core ratio to sync
5-Multiplier to 40
6-leave voltage at default
7-boot into OS run HWmonitor keep an eye on temps 105c is max temp for your CPU try to keep it around 70c
8-run Prime95 for an hour- you will reach approximate max temp at about 15-20 min if it gets to hot shut P95 down,you cant just X out it will continue running you need to right click on icon in system tray and click stop. This program maxes your CPU far more than  any day to day program. If your PC crashes during test your OC is unstable.
9-If it passes turn the multiplier up to 41 test again, if passes multi to 42- when it fails and PC crashes leave the multi where its at and increase the voltage by 0.05 keep adding voltage in .05 increments until you can pass an hour of P95
10- You can push it by upping the multi 1 at a time and the voltage .05 at a time and remember try to keep temps around 70c and voltage below 1.3.


As far as you not noticing a difference an OC wont make your OS boot faster or applications open quicker that depends if your OS is installed on an SSD or HDD but you will notice a difference when running programs and games. If you need any more help let me know.

[Matriplex]

Great reply, thanks for the input. I'll turn down the voltage immediately too.
Not much else to say, thanks for the great instructions.
Off to BIOS.

[Pak_Track]

Why don't you look at liquid cooling for your CPU?
Corsair offers quite a few:
http://www.corsair.com/en/cpu-coolers/hydro-series
It should greatly reduce your CPU temps.