I7 5820K 4.2GHz adaptive 1.25 core voltage crashing

juniajai

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Oct 26, 2017
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Hi, my pcs framerate seems to be degrading each time I play Destiny at a 4.0ghz oc at 45c as such I have been trying to overclock my CPU to 4.2ghz, with adaptive on my system crashes any help or ideas will be helpful.
My system is as follows:
CPU: I7 5820k @ 4.2ghz
GPU: 1080 Ti FE
RAM: DDR4 16GB 2133MZ
PSU: EVGA 850w G2 Supernova
Watercooler: NZXT X62 Kraken
Monitor: Acer X34A
 
Solution
First, what's your definition of "framerate degrading?" What exactly is the problem and what's happening?

Also, what resolution is your monitor (1080, 2K, 4K?), is it 60Hz or 144Hz?

Right out of the gate, don't use adaptive voltage....Use fixed. Set to 1.28v vcore (you can tune this down later) for 1.40GHz and set your LLC to level 2. Also set input voltage to 1.9. That alone may smooth things out.
 


Hi, sorry for not replying been quite busy of late so I couldn't reply.
First when I say degrading I mean I will start the day averaging about 80-90FPS then later in the same zone will go to about 70-60 and then at the end of the day it will be 60-50 in areas. I think it might be temps but I have a stable 82c on my GPU and 45c Max on my CPU so I don't know why it would be the heat.

My Monitor is 3440x1440, G-Sync and 100Hz.

I will change my OC settings later as I am not currently on my Gaming Rig.
Thanks for the response I will keep you posted on my status.
 


You've got GPU cooling issues. That's what's killing you. Get more air fed from the outside of your case directly toward your GPU however you have to. Your GPU will throttle at 84c. If you're seeign 82c in your monitoring tools your GPU is no doubt spiking in to 84 and throttling.
 
Solution


See I thought it might have been my cooling on my GPU, I'm no savant when it comes to air flow, could you suggest a configuration. I'm using a Corsair Obsidian 750D, with two intake 120mm's on the front, a 120mm as an out take on my exhaust by the cpu and two 140mm outtake on my cooler on the top because my PC is under my desk with about 15cm head room. I typically have an intake from the top of my PC but because of it's location I went with this setup clearly it isn't working.

Also I had a look into my MOBO features, MSI X99S SLI PLUS, it doesn't have LLC so I might upgrade it since I only brought it due to budget constrictions.
 
Good news is you're in a great case for airflow. Just a few questions:

1) That case comes with 2 x 140mm fans pre-mounted in the front. Did you change those out for 120mm fans?
2) Are you using the hard drive cages that mount in the front of the case? If not, get then out of there to improve air intake.

In regards to the fans in general:

1) What is controlling the front fans' speed? Try turning them up to increase the air flow
2) Have you verified your GPU fan is spinning? You can try setting a custom fan profile in MSI Afterburner to get that fan spinning faster and earlier at lower temps to try to help.

One big challenge you've got is you've got a FE GPU. The cooling on those are NOT good. The main reason folks buy FE cards is for the sole purpose of ripping the shroud off to install a water bock for a custom loop (I'm doing this myself with an FE 1080 ti). Its imperative that you feed as much cool air to the rear/bottom of that GPU where its single fan can suck it in to try to cool the card.

If you're currently overclocking that GPU, set that back to defaults to start as well. Ideally you want that thing in the low 70s at most while gaming. Even if your software is showing that its only getting to something like 76-77c, I never trust that as I'm sure there's small heat spikes that the software isn't showing and its likely causing throttling.

It may be in your best interest to try selling that GPU and grab a 3rd party 1080 ti that has a couple fans on it.
 


I am using one of the two drive cages as I need too for my two bays and as such is why I ripped the 140's out because it covered the bottom of one of them. Also believe that the case actually has mounting ports for hard drives in the location that the cages go so I might just install them there.

I brought the FE because at the time I planed to do a custom CPU and GPU loop but due to my inexperience went with an AiO and at the time was £30-£40 cheaper than the non reference cards. I might still install a custom loop for my GPU alone but I don't think I have the £300-£400 to spend at the moment on my PC.

For the time being I think I will just invert my top 140's so they are intake to stop the rapidity of air being sucked up by them and hopefully allowing the GPU to suck up some more air too increase the cooling.
I am using CAM to monitor my stats and my fans are apparently running at 100%, the noise is kind of a give away, they are 3-pins and I didn't realise until I went to install.
 
I'm not sure I understand the reason for replacing the 140mm fans that came with it. I'd absolutely leave those in place, and you're OK using the HDD rack. Just remove the 2nd HDD rack if you're not using it as that will open up some air flow.

The issue with the 750D, vs the 750D airflow edition is those front fans have a hard time getting at air from the outside because of the front panel design of the case. You definitely want powerful fans up there to feed air in, and with decent 140mm fans they should be pretty quiet even at high RPMs.

Do NOT invert those top fans in your case. You'll just be pushing more air in to the case and not allowing the warm air around the GPU to rise and get out of the case. You really need to get more air fed to that GPU fan.

If you can, try to rig a 120mm fan to the left side of the HDD cage you're using and point it right at your GPU. You'll have to rig using zip ties or something (most likely) but it should help accelerate the air coming from your front fans and feed it straight to your GPU.
 


I ended up moving my GPU up a PCIE Slot because I put it in the 2nd slot without realising now I am getting 62c so it is fixed. Also IO have the 750D Airflow and thanks for the help sir you really helped even though I fixed it with a different solution.