OC i5-4690k help

ThencredibleKid · Feb 4, 2016

Recently I got a new psu, a corsair rm850. I also got a new mobo, a Gigabyte z97 HD3. I decided I wanted to OC my i5 4690k but I am having trouble in the bios. To change the multiplier is grayed out and wont let me. I have never OC'd a cpu before, but I have a good idea on what to do. Any help? Thanks !

KLawinger · Feb 4, 2016

select the multiplier with your arrow keys, then use the + and - keys to change it

ThencredibleKid · Feb 4, 2016

KLawinger :

When I go to do this it switches to the next screen, like it isnt selected

10tacle · Feb 4, 2016

Not familiar with Gigabyte's BIOS layout, but it sounds to me like you need to "unlock" the CPU speed setting to manual from the BIOS default auto setting. It might be called something like "CPU ratio" in an advanced settings tab or sub-selection.

ThencredibleKid · Feb 4, 2016

10tacle :

I was able to find it! Thank you! Now to see if I can get a overclock!

ThencredibleKid · Feb 4, 2016

10tacle :

I am at 4.2ghz, wit 23 C. I want to keep going but I dont know a whole lot about voltage. Any suggestions?

10tacle · Feb 4, 2016

ThencredibleKid :

Cool! Hopefully you have a decent air or water cooler. You will definitely need it.

10tacle · Feb 4, 2016

ThencredibleKid :

To answer that, what is your CPU cooler?

ThencredibleKid · Feb 4, 2016

10tacle :

I have an corsair H55. I got it to 4.2ghz, ran intel burn test and stayed under 65C.

10tacle · Feb 4, 2016

ThencredibleKid :

Okay so that's a limited closed loop water cooler. Here's another hardware tech site's results with a 4790K and overclock. This is just a guideline as you may have a better or worse chip than they had (better meaning not as much voltage needed meaning it will run cooler at the same speed meaning higher overclock headroom, and worse meaning more voltage needed and will run hotter at the same speed, less overclock headroom). It's called "winning the silicon lottery" if you get a good chip.

What you are looking for in the below link to their chart is the voltage in the second column "CPU Volts". I do not know what cooler they used, but I think it's something like an H80i. The temps they got with each speed is represented under the fifth column "OCCT". Just gradually notch it up .1GHz at a time and watch temps. I would not go above 80C under load in a stress test.

http://images.anandtech.com/doci/8227/3%20i7-4790K%20OC.png

PS: You need to download a more stressful program like OCCT or Aida 64 and let it run for several hours in each speed.

ThencredibleKid · Feb 4, 2016

10tacle :

ThencredibleKid :

Okay so that's a limited closed loop water cooler. Here's another hardware tech site's results with a 4790K and overclock. This is just a guideline as you may have a better or worse chip than they had (better meaning not as much voltage needed meaning it will run cooler at the same speed meaning higher overclock headroom, and worse meaning more voltage needed and will run hotter at the same speed, less overclock headroom). It's called "winning the silicon lottery" if you get a good chip.

What you are looking for in the below link to their chart is the voltage in the second column "CPU Volts". I do not know what cooler they used, but I think it's something like an H80i. The temps they got with each speed is represented under the fifth column "OCCT". Just gradually notch it up .1GHz at a time and watch temps. I would not go above 80C under load in a stress test.

http://images.anandtech.com/doci/8227/3%20i7-4790K%20OC.png

PS: You need to download a more stressful program like OCCT or Aida 64 and let it run for several hours in each speed.

Thank you for pointing me in the right direction! It will help me tremendously !

10tacle · Feb 4, 2016

ThencredibleKid :

Welcome to the overclocking world and have fun! :bounce:

Just make sure you stay within safe temp and voltage limits (below 80C and 1.3v) for long term use. You will never stop learning, either. I've been doing it for 15+ years!

ThencredibleKid · Feb 4, 2016

10tacle :

Thank you! I was having fun but I have run into some issues. After I got done with my testing I tried 4.3ghz and that didnt work out. So I went back down to 4.2ghz but its unstable. I am able to boot but I cannot get a stable desktop. Nothing is opening fast, just seems very laggy. Went back to original and I still have the issue. I dont know what is going on or what I should do

10tacle · Feb 4, 2016

ThencredibleKid :

When you say "went back to original" do you mean you reset the BIOS to default settings and tried booting again?

ThencredibleKid · Feb 4, 2016

10tacle :

ThencredibleKid :

When you say "went back to original" do you mean you reset the BIOS to default settings and tried booting again?

I reset to my default settings in the bios and tried booting again

10tacle · Feb 4, 2016

ThencredibleKid :

And it's still acting up? Try removing the CMOS battery towards the bottom of the motherboard (looks like a coin) and leave it out for about 10 minutes. You may need to remove some components to get to it. And keep the AC power cord unplugged from the back of the PSU the entire time (unplug *before* you remove the battery, plug back in *after* you reinsert the battery). And be careful the battery doesn't fly into your PSU if it's sitting on the bottom upside down with the fan turned up! Maybe something in the BIOS didn't clear. I've had that happen.

PS: I am assuming you are of course taking precaution against anti-static damage when working inside the case.

ThencredibleKid · Feb 4, 2016

10tacle :

Sorry the late reply I was at work. So I have an idea. I am starting to think Windows got corrupted or something. This is all making no sense. Now when I boot its asking me to activate windows, I don't even think its a OC problem anymore
I went into my PC and I couldn't find the cmos battery

10tacle · Feb 4, 2016

ThencredibleKid :

No worries. We must be in different time zones as it is my crash time typing this (I'm in the US, Eastern Time). The only way Windows would have gotten corrupted that I can imagine is if you had an overclock going on and you updated it. Did you download and install the latest Windows update while it was overclocked?

Look at your motherboard manual for where the CMOS battery is in the diagram layout. Usually it's located in the center of the motherboard towards the bottom. I'll be around Friday.

alsmith · Feb 7, 2016

Battery is next to the long expansion socket that is nearest to the processor, on the side away from the processor- about half way along the length. If you have a double width graphics card it will be under the card.

OC i5-4690k help

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