Help with overclocking i7-4770k

steven1495

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Dec 26, 2012
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Hardware:

CPU: Intel Core i7-4770k
Mobo: MSI Z87-GD65
Cooler: Corsair H80i

What is the highest frequency I can OC to, and how would I go about doing that?

Thanks
 
Solution
As I say to everyone overclocking, take it slowly. Overclocking takes time. I spent a solid 12 hours working on my pc over the course of 2 weeks. Eventually you will learn how your CPU works and functions according to different settings. It is like meeting someone new. You don't really know who they are until you have spent some time with them, so take your time.

There are usually two ways people OC their CPUs. First is to apply a medium level voltage and lesser OC (multiplier) to find thermal limits, test the temps, then see how far your multiplier and base clock will go.

The other way is to push both up slowly at the same time. This is what I did.

For you CPU, adjust the multiplier +1 (so from x38 for each core to x39). Try to get...

PyjamasCat

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Mar 20, 2013
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Highest? Depends. First of all, some chips will OC better than others. It also depends on the ambient air temps and cooing elsewhere in your PC.

To overclock, I suggest you use the settings in the BIOS. I'll post something in a sec.
 

PyjamasCat

Honorable
Mar 20, 2013
874
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11,360
As I say to everyone overclocking, take it slowly. Overclocking takes time. I spent a solid 12 hours working on my pc over the course of 2 weeks. Eventually you will learn how your CPU works and functions according to different settings. It is like meeting someone new. You don't really know who they are until you have spent some time with them, so take your time.

There are usually two ways people OC their CPUs. First is to apply a medium level voltage and lesser OC (multiplier) to find thermal limits, test the temps, then see how far your multiplier and base clock will go.

The other way is to push both up slowly at the same time. This is what I did.

For you CPU, adjust the multiplier +1 (so from x38 for each core to x39). Try to get it as high as you can stable, with prime95. Simply run for 30mins, it should not take long for errors to show up. If no errors occur (warnings, errors, BSOD) then you can try bumping the multiplier up one more. If errors do happen, then add more voltage, possibly around +0.05. Test again.

My method of OCing is to push the multiplier as far as I can on auto voltages. Then, once I find the limit (either temps or vcore to high for my liking), I will fine tune the voltages manually.

There are tonnes of guides to check out, so read up! You might find info in one that isn't in the other which could help you out.

There are also things to look out for. You may encounter what is called a voltage wall. The is a strange block in which your CPU frequency will not be stable past a certain point, unless applying a large voltage increase. This can be frustating for some, as it causes heat issues. My CPUs voltage wall is at 1.32V on my 3570K.

Also, you may be able to test a setting and be stable, but the actual performance is lower than what you would expect. This is due to the CPU making error corrections. This is caused by a too little voltage to run perfectly, but not enough to be 100% accurate. (Or something like that. It is apparently quite complicated and the same can be applied to RAM, except the errors aren't corrected with desktop RAM.)

Before I finish, basic things to remember:

-Take it slow.
-Record your changes on paper.
-Set yourself a low goal to begin with. Then aim higher when your more confident and understand your system and settings better.
-Ask for more help if needed.
-Check other peoples results to see what your CPU could be capable of and what to expect.
-Read up on others experiences to see how they went about OCing.
 
Solution
I agree with everything said above .... almost :)

1. I start a lil higher (4.0 Ghz)

2. Auto overclocking utilities have gotten very good..... Asus and MSI have the best. I use the auto overclock feature..... record the settings .... then reset to defaults and start fresh from stock settings and work my way up. Knowing how far the auto OC went gives me some starting points.

3. Im a bit wary of P95 on Haswell ..... JJ talks about it in the Asus videos and recommends AIDA64 as being "Haswell Aware"