overclocking first 4790k

[zachparr2442]

like it says i haven't had an intel chip in about 8years. i know how to overclock and i have seen mult forums. but different forums say different things for some reason no one has a soild answer. Now my question is what are the maxs for this chip for Vcore, core temp all that stuff. i have seen 1.3v and i have seen 1.45 v for temp i have seen 70c,80c,90c and 100c. i understand while stressing the temps will be higher then what they would be in daily use. the setup i have is 4790k with asus z97-pro 16gb 2400 g-skill sniper and Enermax Liqtech 240 . i know i sound like a noob i know how to overclock i just want to know the maxs i can reach hoping to get 4.7-4.8 out of this chip and then work on oc my 980. sorry for the double spaces my keyboard is a little messed up. And also which software would i use for amd i used prime 95 and hwinfo and cpu z to monitor everything

 

[i7Baby]

See http://www.anandtech.com/show/8227/devils-canyon-review-intel-core-i7-4790k-and-i5-4690k/2 -

Using an H80I CPU cooler they were able to get 4.5GHz safely at 79C with 1.25V

BUT - an i7 4790k will self turbo to 4.4GHz anyway. And you could just put a CM Hyper 212 evo ($30) CPU cooler on it for that.

Only use Prime 95 26.6 for a Haswell CPU. Others are too severe on it.

 

[zachparr2442]

so there they where pretty much at 1.3v and 86c at 4.6 and 1.45v and 96c at 4.7. so which one is the max temps and vcore thats all im really looking for. i know i went on a little rant up there that was my bad.

 

[i7Baby]

I'd see how you went at 4.5 @1.25V. If OK I'd try 4.6, etc etc.

Anandtech went up in 0.1GHz steps from 4.0GHz up. Might be a good idea to do the same too - to get the hang of it.

 

[zachparr2442]

lol i have oc before mult times i know how to overclock i just need to know the maxs with temp and voltage what is the max temps and volts for the i7-4970k. I can overclock but i was mostly amd, until i came to korea and sold that system

 

[i7Baby]

Oh well if you're confident, start with 4.5. See if its stable and move on. Good luck.

 

[zachparr2442]

i will move on as soon as i know far i can push the voltage and the temps. and that what i have been asking this whole time

 

[i7Baby]

That's why you go up in steps - to find out, for your particular CPU on your particular set up, how far you can go and the set-up remains stable.

Anandtech can give you an idea of how they went with their chip and set-up. But you have to test your own - to see whether you've won or lost the chip lottery.

 

[zachparr2442]

what is the unsafe voltage and temps for this cpu if that makes sense now. what are the safe voltage and temps. and i understand were you are coming for i do, but im nor sure if your understanding the question. How far can you push the voltage and temps until it becomes unsafe.

 

[sizzling]

The problem with forums is people build in different safety margins as they don't want to tell you something and then you fry your CPU. All you can do is read what others have dome and decide what risk you feel comfortable. As you already know OC'ing isn't an exact science, whats safe on one chip might blow another.

 

[i7Baby]

"How far can you push the voltage and temps until it becomes unsafe." it varies with the particular CPU and your particular PC.

 

[zachparr2442]

So lets say i hit 4.8 at 1.4v and 85c max on a prime 95 12hr test are safe voltage and 85c with the 4790k cpu i know for the fx the voktage you want to stay under is 1.5v and max temo was i think 70c

 

[i7Baby]

Fix your sentences. I can't understand.

 

[zachparr2442]

Lets say i hit 4.8ghz at 1.4volts and a max temp of 85c. Running prime95 for 12hrs. And everything stable. Would these volts and temps be safe. And yes i understand that with prime95 it is a stress test so would likey never see that temp in real world use.

 

[MasterMace]

If you're familiar with overclocking, then you know the majority of the stability issues in overclocking is the platform.

From what I read, the max temperature for the integrated heat spreader is 72.72C.

4th Generation 22 Nanometer: 4790K (TDP 88W / Idle 2W)

Standard Ambient = 22C
Tcase (CPU temp) = 74C
CPU / Core offset + 5C
Tjunction (Core temp) = 79C
Tj Max (Throttle temp) = 100C

Intel Temperature Guide [TomsHardware]

• 80C sustained Core temperature is too hot.
• Core temperatures in the mid 70's are safe.

Minimum temperature I found was -120C before cold bug.

http://www.xtremesystems.org/forums/showthread.php?289119


Voltage wise i think your limit is going to be heat related, but as shown in the last link, it depends on your cooling.


[editted minimum temp, regarding Factory settings]

 

[zachparr2442]

thank you understand what the others were talking about i just wanted to know what the max temps i could reach before becoming "unsafe"