i7 7700K Overclock help

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John2090073

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Mar 10, 2013
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I really need some help with overclocking my i7 7700K. I would like to overclock it as much as I possibly can safely. This is what I am working with https://pcpartpicker.com/list/tjqJPs

I am using a good cooler. The only overclocking that I have tired was 4.8ghz at 1.2v. It was stable and I didn't have any trouble. I wanna try and overclock it more. I don't really know anything about overclocking and could really use anyone's help here to get me to where I need to be. I don't understand what everything in the motherboard does. I know how to "overclock" a CPU but I don't know how to properly "overclock" a CPU if that makes any sense. The only thing I really know how to do is to change it from 4200ghz to 4800ghz and the core voltage.

Please help me out here!
 
Solution
ZeusGamer
Maybe you should lower your Core Cache ratio also, that really doesn't justify any performance boost. I've got my Core Cache multiplier to 40 rather than it's default 42. Running the core multiplier to 49 on 1.325v.
It's actually stable at that. My motherboard is ASUS Maximus IX Hero btw.
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The_Staplergun

The_Staplergun

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You've got a lot of headroom.

The recommended limits are 1.4 volts and 80c running temps.

Don't listen to other people who say that anything below is dangerous or anything above is actually not bad.

You've got a lot of headroom if that's stable.

You need to get prime95 v26.6 and do a large fft test for most thermals and monitor core temps. If it exceeds 80 your cooler isn't sufficient or your chip runs too hot.

If you're at around 70-75 you can try stepping up to 4.9.
If you're at 65-70 you might be able to even try 5.0.

I'd recommend stepping down voltage by 0.005 at a time at the frequency you're at and finding the minimum voltage you can possibly run at.

Once you've found that step up by 0.05 and step up the multiplier by 1. Test. If that doesn't work step up by 0.005 until it does. If it DOES work, step DOWN by 0.005 until it doesn't and go back a step.

Keep doing this until you hit 80c under load, or 1.4v, or just instability no matter what.
 
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John2090073

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My temps already get into the 80s as it is. I was told by many people this is normal for the i7 7700k. Your telling me it's not? It is air cooled. Should I possibly think about going with a water cooling system?
 
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lodders

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If you buy an expensive cooler, you may be able to go 200Mhz faster. This is a speed increase of only 4% Few users would be able to tell the difference when using the PC.
If I were in your position, I would drop the speed to 4.7Ghz and then follow staplerguns advice to find the lowest possible Vcore. Should get you below 80C, and your PC will still be very fast.
 
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John2090073

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I just put my CPU back at stock 4.2ghz and left the voltage at auto and my temps are 29-31c. As soon as I start to overclock however they start to go up. So should I go with a different cooler? If so do you have any suggestions? Also if you want me to start at 4.8ghz what should I start the voltage out at?
 
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The_Staplergun

The_Staplergun

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At 4.8 try 1.280 and follow the steps outlined in my previous posts for stepping voltage up or down.

Keep temps at or below 80c at peak.

If you absolutely want to overclock you would need to upgrade.

What's your room temperature?
 
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John2090073

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I'm not sure maybe low 70s. What would I upgrade to?
 
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John2090073

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I have finished testing out my i7 7700k. After hours of testing I have came up with a 4.8ghz overclock with just 1.20v. My max temps are 75c under full load with an average max temps across all four cores of about 70.5c! I am using the Kraken x62 with fixed mode 60% fan and 80% pump. I was going to try and overclock more but I am completely satisfied with my overclock where it is at! Thanks everyone for all of the help!
 
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ZeusGamer

ZeusGamer

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Maybe you should lower your Core Cache ratio also, that really doesn't justify any performance boost. I've got my Core Cache multiplier to 40 rather than it's default 42. Running the core multiplier to 49 on 1.325v.
It's actually stable at that. My motherboard is ASUS Maximus IX Hero btw.
 
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