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  1. #1
    ROG Enthusiast Array wonderin PC Specs
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    Bad 1080 ti overclocking results?

    So recently I've decided to overclock my Rog Strix 1080 Ti OC a bit with gputweak.

    Click image for larger version. 

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    Every time I push the core voltage slider over the 10% state, it doesn't pass the 3D Mark Fire Attack stress test – it just stops.
    Without changing the core voltage offset I can push the core clock only up to 2012 mhz (+70) without failing the 3dmark test. I guess i can get a bit more from my 1080ti oc with the right adjustments. The temperatures are fine (<65C with a custom fan curve).

    What am I doing wrong? Or is it just the bad luck in the lottery?
    Last edited by wonderin; 01-24-2019 at 08:38 AM.

  2. #2
    Administrator Array Silent Scone@ASUS's Avatar
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    Hi,

    More voltage is not always beneficial depending on the sample.

    Increasing the voltage slider unlocks further voltage points, but this is not necessarily helpful, as some GPU will be stable at higher clocks whilst at a lower voltage point. In order to maximize potential one needs to experiment with the VR (voltage/frequency) curve which can be adjusted by selecting User Define under the clock offset.

  3. #3
    ROG Enthusiast Array wonderin PC Specs
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    Quote Originally Posted by Silent Scone@ASUS View Post
    Hi,

    More voltage is not always beneficial depending on the sample.

    Increasing the voltage slider unlocks further voltage points, but this is not necessarily helpful, as some GPU will be stable at higher clocks whilst at a lower voltage point. In order to maximize potential one needs to experiment with the VR (voltage/frequency) curve which can be adjusted by selecting User Define under the clock offset.
    I was trying to play with that curve but the results were far from good. It's a hard job for noob like me. Haven't found any specific tutorials*

  4. #4
    Banned Array JustinThyme PC Specs
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    First things first, back off your memory to stock and push the core first.
    Are you on air or under water? What are your temps doing? Are you hitting the power target? You can leave the measurements running to see where you are.
    Temps will get you every time, add voltage, temp goes up. Your not far off the mark from what I got with a pair of them in SLI. I think I topped out at like 1766 with the volatge slider maxed but I had them under water with a serious loop and when running benches like firestrike ultra 16 fans would ramp to max on two 480 rads. If you are on air open the case up and put a fan blowing in there to get a better idea. Looking at your specs if thats current and your case is closed up and you are on air thats not a bad clock. All the stupid fast clocks you see are on extreme cooling with chillers in the least. look at your compare scores with similar rigs both CPU and GPU and make sure you have it checked for single card. if you see leaders like way out in front open up their results and look at the -20C temps LOL

  5. #5
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by wonderin View Post
    I was trying to play with that curve but the results were far from good. It's a hard job for noob like me. Haven't found any specific tutorials*
    Every GPU is different, so walkthroughs will only get you so far when tuning the VF curve manually. The OC Scanner now supports Pascal GPU, I'd recommend trying this (button can be found on the opening page). The process can take anything up to 30 minutes.

    Click image for larger version. 

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  6. #6
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by JustinThyme View Post
    First things first, back off your memory to stock and push the core first.
    Are you on air or under water? What are your temps doing? Are you hitting the power target? You can leave the measurements running to see where you are.
    Temps will get you every time, add voltage, temp goes up. Your not far off the mark from what I got with a pair of them in SLI. I think I topped out at like 1766 with the volatge slider maxed but I had them under water with a serious loop and when running benches like firestrike ultra 16 fans would ramp to max on two 480 rads. If you are on air open the case up and put a fan blowing in there to get a better idea. Looking at your specs if thats current and your case is closed up and you are on air thats not a bad clock. All the stupid fast clocks you see are on extreme cooling with chillers in the least. look at your compare scores with similar rigs both CPU and GPU and make sure you have it checked for single card. if you see leaders like way out in front open up their results and look at the -20C temps LOL
    There are a few tricks of the trade that can seperate the playing field without the use of cold water, too (when it comes to perceived scores on FM). Plus, Havok physics engine used in the CPU tests are quite sensitive to memory latency, surprisingly so infact.

    https://www.3dmark.com/compare/spy/4584307/spy/5862356

  7. #7
    ROG Enthusiast Array wonderin PC Specs
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    Quote Originally Posted by JustinThyme View Post
    First things first, back off your memory to stock and push the core first.
    Are you on air or under water? What are your temps doing? Are you hitting the power target? You can leave the measurements running to see where you are.
    Temps will get you every time, add voltage, temp goes up. Your not far off the mark from what I got with a pair of them in SLI. I think I topped out at like 1766 with the volatge slider maxed but I had them under water with a serious loop and when running benches like firestrike ultra 16 fans would ramp to max on two 480 rads. If you are on air open the case up and put a fan blowing in there to get a better idea. Looking at your specs if thats current and your case is closed up and you are on air thats not a bad clock. All the stupid fast clocks you see are on extreme cooling with chillers in the least. look at your compare scores with similar rigs both CPU and GPU and make sure you have it checked for single card. if you see leaders like way out in front open up their results and look at the -20C temps LOL
    i have kind of a good airflow inside my case, custom fan curve keeps it below 65c under full load.
    i was overclocking core first, then jumped to memory clock. moving voltage slider brings in instability.
    so I guess I should leave it ad it is or go for custom voltage curve *
    Last edited by wonderin; 01-24-2019 at 09:16 AM.

  8. #8
    ROG Enthusiast Array wonderin PC Specs
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    Quote Originally Posted by Silent Scone@ASUS View Post
    Every GPU is different, so walkthroughs will only get you so far when tuning the VF curve manually. The OC Scanner now supports Pascal GPU, I'd recommend trying this (button can be found on the opening page). The process can take anything up to 30 minutes.

    Click image for larger version. 

Name:	Capture.PNG 
Views:	16 
Size:	26.2 KB 
ID:	78443
    thank you, will definitely give it a try today if yoy say that it's a reliable tool.

  9. #9
    Banned Array JustinThyme PC Specs
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    Quote Originally Posted by Silent Scone@ASUS View Post
    There are a few tricks of the trade that can seperate the playing field without the use of cold water, too (when it comes to perceived scores on FM). Plus, Havok physics engine used in the CPU tests are quite sensitive to memory latency, surprisingly so infact.

    https://www.3dmark.com/compare/spy/4584307/spy/5862356
    Yes it does, not surprising at all, Ill take 3200 C14 over the stupid fast 4000+ with C19. Thats just the CPU score though and it can separate by 2000 points or so. That's why its important to see what those scores are doing so you are not chasing your tail. When you see a CPU score 10 12000 and you are pumping half that then that a different critter to chase that cant be done with GPU tweak. One part of the system at a time and one thing with that one part. Im still tweaking myself, CPU is about as dialed in as its going to get, need water for GPUs but.......no blocks to be had that are worth having. Ill take what I have, went from 18K on timespy with 7900X and a pair of 1080Tis under water to topping 25K with 9940X and the 2080Tis. CPU score up by 4K.

  10. #10
    Administrator Array Silent Scone@ASUS's Avatar
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    Yes, it can be deceiving when chasing numbers if comparing on FM scoreboard. That run is actually with CAS16 4000MHz with very tight subs (Apex VI). You can be certain that also, a lot of the scores in the top 20 are using various LOD tweaks.

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