Overclocking a i5-4670k

DeltaRecon2552

Honorable
Dec 2, 2013
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I have a stock cooled i5-4670k. I let AI Suite III overclock it for me at first to start. It put it to 1.2 vcore and 4.2 ghz. It crashed about 10 minutes into PlanetSide 2. So I rebooted and put my Vcore to 1.21 with a deviation of 0.001. I now run PlanetSide on Ultra at over 70fps in combat and over 200 at the Warp Gate. I'm happy right were it is. I didn't torture test it. Just gaming. Temps never went over 50 c. Should I go further or just stay where I am?
 
Solution


Fantastic. That makes life easy.

Now that you have a new cooler, run Prime95 with your current OC for a few hours to ensure stability. Temps with Prime95 will always be higher. If stable and want to go higher, increase clock and test again. If your PC crashes, raise v-core a little. Test again.

The EVO is a cooler for mild to high clocks, with suitable temps. It maybe difficult to get the 4670k above 4.5-4.6 on air.
Sigh. You should never overclock with a stock cooler. They aren't designed to cool processors with higher clocks and higher v-core levels.

What you should do is stop and buy an aftermarket cooler. The most popular cooler is the CoolerMaster Hyper 212 or the 212 EVO edition. But there are other good brands.
 


+1 Agreed even though it's tempting because you have cool temps, you should not be overclocking on a stock cooler. I also recommend the Hyper 212 EVO as I have it on my 3570k clocked at 4.3GHz. My temps went from 70c at full load down to 50c at full load. Those coolers are amazing for the price!
 


Fantastic. That makes life easy.

Now that you have a new cooler, run Prime95 with your current OC for a few hours to ensure stability. Temps with Prime95 will always be higher. If stable and want to go higher, increase clock and test again. If your PC crashes, raise v-core a little. Test again.

The EVO is a cooler for mild to high clocks, with suitable temps. It maybe difficult to get the 4670k above 4.5-4.6 on air.
 
Solution
I got my cooler on and temps dropped a hard 20c on Prime95 with adaptive Vcore of 1.260 with .01 offset at 4.4 ghz.

EDIT: I hit max temp spike of 89c on Adaptive with Vcore of 1.280 so I set it to manual at 1.270. Testing now. Still stable at 4.4 ghz with stock CPU Cache settings.

 
I think you should lower the V-core back to 1.21 or 1.22 and test. The basic purpose of raising the v-core is when you experiencing crashes. You don't need to raise it unless you experience the crashes. That is why you have such high temps right now.
 
I've read the guide. I'm just trying to find the point that I crash right now. I'm running 1.240. If I don't crash within 20 minutes I'll go down 0.01. When I finally crash I will go up 0.005 and test, and if I crash again up 0.002 until I don't crash within 2 hours of Prime. I haven't crashed yet so I'm still going down on Vcore.