I have a bad OC'ing 4770K

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sonicmaniafan

Commendable
Aug 30, 2017
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My 4770K is a terrible overclocker. I can only reach 4.2GHz stable. Should I sell it and get a 4790K? Or What? Should I just keep it and not worry about it? I like to overclock and the 4770K just doesn't have much overclocking headroom in it. I have a nice aio water cooler and a z97 motherboard. I'd hate to see that stuff go to waste on a crappy overclocking CPU.
 
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1) Asus Z97-A
2) Corsair H105
3) Corsair 750TX V2
4) Unstable but it takes 1.35v for 4.2GHz.
 
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Good mobo and power supply. I don't think those are your issue.

Your AiO is 240mm, so it shouldn't be getting overwhelmed.

That leaves your CPU.

I have a few more questions.

1) When overclocking, did you increase the multiplier or did you increase the base clock?

2) If you turn on the computer and go into BIOS setup, what is the CPU's temperature just sitting at the menu?

3) When gaming or doing whatever it is that makes it crash, what is the max temperature you're seeing before it crashes?
 
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The Haswell (aka i7 4770K) are really bad overclocking chips. Most people can't get above 4.5ghz @ 1.4v. So 4.2 @ 1.35v isn't unheard of but less common. Mine takes 1.2v @ 4.2ghz and 1.45v for 4.6ghz. I just leave it at stock nowadays.

Edit: For the Haswell you need to remember to raise the Ring Ratio (Ring Cache) along with the CPU multi or you get stuck around 42 multi leaving the ring at 38. Also the voltage needs to increased to 1.2v

So I would try this and see if this works. Than if it is, start to raise just the CPU. The ring ratio usually has a very hard time above 43-44, but 42 usually gets you to about 4.6ghz.

CPU: 43 @ 1.35
Ring: 42 @ 1.2
 
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1.29 to get to 4.3Ghz for me on my old 4770k. I was able to reach 4.5Ghz with 1.35, but it then began thermal throttling quite easily.

Some chips did struggle with 4.1 and 4.2 Ghz, they were the truly bad ones and basically were only good for stock speeds. Quite rare though.

If you don't mind making an attempt at selling the 4770k and picking up a used 4790k, I don't see why not. Already at 4.4Ghz with a little room to go higher.
 
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I found that my cache voltage was already over 1.2v. So I tried 1.3v. And I tried your other suggestions. I got an error in occt after 3 seconds. Tried it again and BSOD after 5 seconds.
 
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Was the BSOD CLOCK_WATCHDOG_VIOLATION or CLOCK_WATCHDOG_TIMEOUT?
 
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Still.....You never said if you have set the Ring Ratio above default 38. You can have the voltage all the way up but the ring multi needs to be within 2-5x of the CPU, otherwise it will crash. If you have 38x ring and 42x CPU, it will crash because they too far apart.

Pretty much if these settings below do not work than you have a chip that does not overclock very high

CPU Multi: 42
CPU Voltage: 1.35v
Ring Ratio: 40-42 (Try 40 first)
Ring Ratio voltage: 1.2v
 
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I tried the above settings long ago and can confirm they are stable. Anything higher and it's not stable. I tried CPU multiplier at 43 and Ring Ratio at 42 but it bluescreened on me.
 
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CLOCK_WATCHDOG_TIMEOUT
 
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I think I'll sell the 4770K and get a 4790K. It won't hurt anything and it won't cost much in the end. Overclocking a CPU shouldn't be this difficult. I had a Core i5 4690K before and it got 4.6GHz on the same motherboard with very little effort. I got to wanting a Core i7 and saw a cheap 4770K on ebay. I bought it and I hate the overclocking results.
 
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Holy Crap! I can sell my 4 year old computer for more than I paid. I don't know why anyone would want this CPU when newer stuff is cheaper and faster.
 
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