Overclock i7 4770k

[Megazero]

So I have a 4770k with H100i and MSI Z87 GD65 Gaming Mobo, first I try the OC Genie and it goes up to 4.0GHz, then I turn off the OC Genie and try to manually change the CPU Clock Ratio to 42 (4.2GHz) and CPU voltage to Adaptive Mode and 1.25V, and it still run perfectly with Prime95 on, the temp stay at around 76 degree Celsius. So next up I change the Clock ratio to 44 and I was able to goes to the desktop but running Prime95 result in freeze, I change the voltage up to 1.3V and it's color in the screen turn Red when it reach 1.3 (does this mean it's warning me that 1.3 is too high?) and try it again, and I still able to get to desktop but running Prime95 result in freeze. So does this mean my CPU can only get to 4.2GHz? or do I have to change any other value than the CPU voltage and clock rate to get better OC? I'm totally new to OC and I dont plan to run OC all the way to 4.4 or more 24/7 (Most likely I will just run it at around 4.0), I just want to learn abit about OC so can anyone help me ?

[flibberdipper]

Try OCCT to stress it and see what happens. Prime95 and Haswell don't like each other.

[Megazero]

Try OCCT to stress it and see what happens. Prime95 and Haswell don't like each other.

So the way I do it is correct? I only need to change the Clock Rate and CPU voltage?

[Erik4boss]

I would not go over 1.275 voltage.

[flibberdipper]

So the way I do it is correct? I only need to change to Clock Rate and CPU voltage?

Should be, but as a daily driver I wouldn't push the voltage much higher than 1.3v or 1.35v.

[Megazero]

I would not go over 1.275 voltage.

Like I said I dont plan to run OC like this 24/7, I was only trying to push it to see how much it can go as I'm trying to learn about OC a bit But I will take note of this.

[CODELEAKER]

I would just get blue screening once the windows loads up same specs, do I need to press something?? It won't change my ratio of my clock speed of my 4770k...

[Megazero]

Hmm... Even with OCCT, it run fine at 4.2GHZ and CPU Voltage is 1.25V (At max 78 degree Celsius), but at 4.3GHz and even 1.31V CPU Voltage it freeze after 6-7 second. So that mean that my CPU limit is 4.2 right?

[Izaya Orihara]

Hmm... Even with OCCT, it run fine at 4.2GHZ and CPU Voltage is 1.25V (At max 78 degree Celsius), but at 4.3GHz and even 1.31V CPU Voltage it freeze after 6-7 second. So that mean that my CPU limit is 4.2 right?

seems like it. you have a pretty bad overclocking chip   :unsure:

[Jerakl]

Once I pick up a NH-D15 I'll be overclocking too. Is there any tips I'll need?

[Megazero]

seems like it. you have a pretty bad overclocking chip   :unsure:

Seem so. I guess it's fine, I dont really need to push it anyway, I just want to try out to see how much this CPU can handle. Thanks for everyone help

Seem like some other ppl take this thread to ask other question regarding OC 4770k too, so I will leave this one as unsolved but I wont be back.

[Megazero]

Ok so I'm being really crazy here, I change the voltage all the way up to 1.32V, and finally I was able to run 4.4 GHz without freezing in both OCCT and Intel Extreme Tuning Utility, the temp reach up to 83 degree Celsius using Intel Extreme Tuning stress test, and 86 with OCCT, which forcefully turn off the stress test after 1min 10 seconds but without freezing the computer.

I will try abit more but I wont increase my voltage anymore than this, just to see how much I can squeeze out with 1.32V~

EDIT: Well, that's the best I can squeeze out of 1.32V, and I dont plan to fry my CPU anytime soon, so 4.4GHz is pretty much the limit, 4.5 give me BSOD after around 15 seconds, and that's about it.

BTW, do RAM have any thing to do with OC CPU?

[LogicalDrm]

Have you set LLC to highest setting? As in, does volts stay on what you set them during whole stress test.

[ProKoN]

have you given my OC guide a ride?

 

http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/

[deathjester]

So I have a 4770k with H100i and MSI Z87 GD65 Gaming Mobo, first I try the OC Genie and it goes up to 4.0GHz, then I turn off the OC Genie and try to manually change the CPU Clock Ratio to 42 (4.2GHz) and CPU voltage to Adaptive Mode and 1.25V, and it still run perfectly with Prime95 on, the temp stay at around 76 degree Celsius. So next up I change the Clock ratio to 44 and I was able to goes to the desktop but running Prime95 result in freeze, I change the voltage up to 1.3V and it's color in the screen turn Red when it reach 1.3 (does this mean it's warning me that 1.3 is too high?) and try it again, and I still able to get to desktop but running Prime95 result in freeze. So does this mean my CPU can only get to 4.2GHz? or do I have to change any other value than the CPU voltage and clock rate to get better OC? I'm totally new to OC and I dont plan to run OC all the way to 4.4 or more 24/7 (Most likely I will just run it at around 4.0), I just want to learn abit about OC so can anyone help me ?

 

Test with Aida 64 if doing long tests on Haswell. Prime Blend is ok for the first round (short test before getting into long tests) then temps go bonkers.

 

1.3 is red because that is about the max safe voltage on most I7's even with a really good water cooler. Some batches might run a little hotter than others. I wouldn't pass that without a custom loop unless temps were ok. By temps being ok I mean LOW 70's C in Asus Real Bench H.264 (click it) or Cinebench R 15 multicore benchmark.

 

Adaptive is kind of crappy. Use override to dial in (make sure dynamic is on elsewhere in the bios and this is what allows the chip to throttle down in voltage when not needed). Some chips do not like a high cache ratio at all, and cache ratio (might be called uncore in bios) doesn't mean all that much. Some people need 3500 there, or 3700 there. Some chips will simply not fo past 4000 or even 3900 or stay close to the OC on the cpu clock. 

 

VCCIN can matter, but you also want to keep it in a certain range. Asus tells you that here.

 

http://rog.asus.com/244672013/labels/featured/introduction-to-fully-integrated-voltage-regulators-fivr-on-maximus-vi/

 

This is quick guide. Keep in mind that VCCIN article though. With Haswell you are really playing with 3 voltages instead of just one. Cache, VCCIN (these all have different names on different MB's see article), and CPU cache voltage. Then you have 2 more settings cache speed and clock speed. 

 

Best way to test a cache overclock is just click cache in aida. Dial in cache last on a problem chip that doesn't just want to clock high right off the bat (most mb just set it to 3900 on all overclocks right off the bat). Set it to 3500. 

http://www.tomshardware.com/forum/id-1722630/intel-god-quick-dirty-guide-4ghz-haswell.html

 

Haswell can be a pain in the butt and you are gonna get from about 4.1-4.8 and there isn't much you can do about it. Keep the temps in safe range on rendering (which is why you prob bought the I7) and other than that? The chip is going to do what it is going to do.

 

Playing around with cache and VCCIN you can sometimes get a "4.2 chip" up to 4.4 on water. Anyways good luck and remember that that chip really starts at 3.5 on 8 threads. 4.2 isn't horrible. Take temps over another 100mhz. Be safe. That chip is nice even at stock.