7700k temps a bit high, GPU won't overclock.

[lafindumondeNF]

here is my setup:

Case: Corsair 250D
Mobo: Gigabyte Z270N-GAMING 5
RAM: 2X8GB EVGA DDR4-3000
CPU: Intel 7700k
Cooler: H100i V2
GPU: EVGA 1080 TI Hybrid
Fan config: Front: Pull through 1080 ti radiator into case, Back: 80mm pull into case, Side: H100i v2 push out of case.
Thermal compound: Insignia Thermal paste from best buy (I have better compound on order).
PSU: 650W EVGA bronze 80


I've achieved a stable overclock at 4.8ghz but it's running hot, like 80C and over hot when benching and stress testing. I've stepped it back down to stock and its still at 35-40C when basically idle. I've used corsair link to turn the profile to performance and it's still running hotter than I would like.

Also on a side note I can't overclock the GPU AT ALL. the GPU temps don't reach over 51C when benching but when i try to overclock the card it just crashes. Runs fine stock, but pushing the speed up 100mhz or more makes any bench crash within minutes. I've tried increasing the voltage limit but that doesn't help either. When benching the card power runs 100% almost constantly, could it be a bad card or insufficient PSU?

Any incite would be greatly appreciated.

- Nate

 

[lafindumondeNF]

When benching at 4.2 stock i get spikes up to 68C with intel extreme tuning utility. At 4.8 i'm getting spikes up to 80 but it's really all over the place. This just doesn't seem like it's being cooled properly. This is my first time building with the 7700k though so i could be wrong.

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[Tír na nÓg]

80c is totally decent if not de-lidded. You are good up to the low 90's (TJ Max is 100c I think).

De-lidded and using liquid metal TIM will bet you a 10 to 20c decrease. Up to you if it is worth loosing the warranty for a couple of extra hundred MHz.

Don't expect much OC from the 1080ti. That is just the way it is now: boost overclocks the card to near it's max capability. Try +50... Mine doesn't go over 2000MHz boost, unless I push indecent voltage ([email protected]...).

 

[lafindumondeNF]

Right on! Thanks for the response. My last build was a 3770K with a 780 ti so it's been a while and things have changed. What about my fan setup? I still have an 80mm slot on the back of the case I could plug into fan2, it can't be great having the hot GPU air blowing directly into the case from the front like that without adequate fresh air coming in right? should I maybe change the GPU radiator to push out the case and then have 2 80 mm blowing in from the back of the case? What about the thermal compound, should i leave it as is or get something better?

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Here is what it looks like from the benchmark.

 

[Tír na nÓg]

Bah, it will change by acouple of degrees IMO. Still worth a try though!

Ah,the good old days of Kepler. I used to overclock my last 780ti to 1400MHz+! 50%OC from ref design unfortunately, those days are long gone (since 9xx).

 

[Jeff G]

What voltage are you using on the CPU? My 6700k ran mid-70's at 1.4v and mid-60's at 1.395v. That .005v made a big difference.
As for the GPU, run voltage at 100% and power limit at 120%. If you want to use the sliders for overclocking, start at +50 and see what it does and go from there. Otherwise, the power curve gets you your max overclock. You'll squeeze a bit more from that method (google has guides). I did notice on mine that my fps is actually higher setting my card at +100 on the slider versus maxing out my power curve even though my clocks are almost 100mhz more with the curve. Looks cool to see over 2100mhz benching, but I'm seeing better performance at 2012mhz.

 

[Tír na nÓg]

Mine [email protected]+50... Those Pascal are real dogs!

Regarding your voltage, Jeff, reading might be so-so: 0.005v can't increase the temp by 10c. Maybe something to do with load line calibration?

Edit: if you want to bench your card, flash the Asus Strix XOC bios. You can push voltage to 1.2v and power limit is disabled. Need to work with the curve as the voltage slider doesn't work anymore though.

 

[Jeff G]

The new bios on the Gigabyte boards made changes to the way the voltage works. I had tons of issues on mine and ultimately flashed back to an old bios. If you have the voltage on Auto, it might be pulling way more that it needs to.

 

[lafindumondeNF]

I'm at 1.25 on both Vcore and Cache voltage at 4.8GHZ. Here is the pic.

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Curiously enough when benching it only shows that i'm using 2 cores. Is that normal?

 

[lafindumondeNF]

Also when i turn my turbo boost short power max enable on it drops my cache speed to 3.8Ghz and my clock speed to 4.2Ghz. Whats that about?

 

[Tír na nÓg]

As for the GPU, I have no need for that kind of power right now so I'm not going to push it while its under warranty. Once warranty is gone, all bets are off!
.

Don't worry too much about EVGA warranty: they won't give you too much (if any?) trouble.

Hey, they are the one making the kingpin edition and still covering you even if the card is oced, right?

Edit: oops, sorry, OP is with EVGA, you're with zotac...

 

[lafindumondeNF]

My thread got hijacked lol.

 

[Jeff G]

My thread got hijacked lol.

Sorry about that, I'll remove my posts to keep it on track.
I'd offer more advice, but it seems you're past what I can think of (other than replacing your Insignia TIM with something like MX4).

 

[lafindumondeNF]

It's all good, i just wish someone could tell me whats going on with my chip. Still not sure why when I turn my turbo boost short power max enable on it drops my cache speed to 3.8Ghz and my clock speed to 4.2Ghz and why my benchmarking is only using 2 cores...

 

[Jeff G]

Which bios revision are you running?
Looks like only 4 available for your board, with F2 being the one where they updated the Vcore to the new settings and F5 was "Update CPU micro code to fix HT flaw issue". If you're on F2/F4/F5, try F1. If you're on F1, try F5.

 

[lafindumondeNF]

I found the issue. Intel extreme was lying to me and the voltage was actually 1.380, i had to go into the bios to manually tweak the voltage. I followed all the steps starting at 1.280 and stepping up by .05 until I reached a voltage that wouldn't crash when benching.

1.320: crash
1.325: 73C max/1166 score
1.330: 74C max/1161 score
1.335: 74C max/1216 score
1.340: 75C max/1209 score

I'm sticking with 1.335 and stress testing it tonight to make sure it's stable.

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[wingman99]

I'm using the latest Gigabyte Bios, works great it even lowered the auto Vcore so I can use it stock overclocking.

 

[batboy]

I think you mentioned a rad fan blowing into the case? Usually, you want the rad fan to push air out of the case. To me it's counterproductive to be blowing warm air from the rad into the case. I also like to have approximately as must intake fans as exhaust fans. Unless you flat have no room for 120mm fans, I would forget the 80mm fans.

As for the 2 cores vs. 4 cores. You need to set a couple things in the BIOS. One thing is called Sync all cores (or something like that). Also, in that screenshot (post #9) of the Intel XTU, I can barely see in the upper right that 2 of your cores have an X I think and are set with a diufferent multiplier than the other two. It's hard to see for sure though.

 

[EarthDog]

If the radiator is in the front... makes sense to blow in for airFLOW purposes. Otherwise, you are taking the warm case air and using that to cool your rad/CPU...

While the air will be a few C warmer inside the case, most would rather that, which generally has more headroom, than to bork airflow. To each their own, however.


its a choose your poison situation. If you want cooler CPU temps, makes sense the front or top (if only rads) as intake. Depends on location, and of course how much people give a hoot about a couple degrees C.......... I guess I have been doing this so long I like my head out of the minutia and enjoy my PC more.

 

[Tír na nÓg]

Depends on location, and of course how much people give a hoot about a couple degrees C.......... I guess I have been doing this so long I like my head out of the minutia and enjoy my PC more.

Hehehe... I believe we are on the same page! Spend thousands of hours running after the last couple of degrees.

A couple of months ago, I removed the WC gear, dropped a good air cooler, decrease my 24/7 OC by a couple of hundred MHz and I now enjoy my PC for what it is: gaming, prod, media.

Might put the loop back at work for fun when CL is out, to grab some points on the bot, but will go back to air as soon as I've dried the benchmarks!