EnigmaTon
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Guys yesterday I bought a GTX 960 (EVGA SuperSC 2GB GDDR5),but I have a serious problem,first of all while the game there are the stuttering continues accompanied by a drop down of gpu usage, also the use of the GPU continuously fluctuates, reading GPU-Z tells me that the cause is vRail (when not in game says Util) My pc has these components : -AMD FX-8370E (3.6GHz / 8-Core) (Turbo up to 4.3GHz) -8GB RAM DDR3 1600MHz -1TB HDD 7200RPM -NVIDIA EVGA GTX960 SuperSC 2GB GDDR5 ACX 2.0+ -ASUS M5A97EVO R2.0 MONTHERBOARD (THE CARD IS ON PCI-EX 2.0 X16 SLOT) All powered by a "Kolink 600W 80Plus Bronze" , this power supply has 37.5a in v12 rail Help me guys , I am seriously concerned PS: I have this problem in all games, I tried: GTA V,The Forest,Minecraft,Warface and Tomb Raider 2013, in all of these game i have same problem... [STUTTERING AND LOW,FLUCTUATING GPU USAGE], GPU ABSOLUTLEY NOT OVERCLOCKED, STOCK SUPERSC VOLTAGE AND FREQUENCY Sorry for my english, i'm italian
post edited by EnigmaTon - Tuesday, July 05, 2016 1:45 PM
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Zuhl3156
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 6:10 PM
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 6:18 PM
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Zuhl3156
See post #2 in this thread explaining the PerfCap reasons and why you get them:
Thanks,how to solve the problem?
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Zuhl3156
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 6:28 PM
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Sajin in post #4:
"It means you've hit the max voltage cap defined by the voltage controller/vbios on the card and cannot increase it any further. You may be able to adjust over +18 inside precision but will not be able to go past 1.231v due to that being the cap."
Not much you can do except modify the video board's VBIOS to allow more Voltage and a higher Power Limit. This can void your warranty if you cannot reflash your original VBIOS back before you send it in for RMA replacement if the board happens to fail or if you forget to reflash the original version. Both my Voltage and Power Limit have been 'unlocked' by modding my BIOS. I run at 1575 MHz with 1.275v at 150% Power Limit under full load and that is one of the PerfCap reason I rarely see. More voltage generates more heat so you need to have an adequate cooling solution in place before you start increasing these values. I have a custom loop with EK full cover waterblocks that keep my temps below 42°C while gaming or running benchmarks.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 6:36 PM
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Thanks for the answer , but why should I do this? you can not play without having drop down normally? for which reason the voltage is reduced ? I bought the card and thought of playing without having all these mistakes :(
there is a way to play without stuttering / drop down ? why these problems happen ?
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arestavo
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 6:38 PM
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 6:42 PM
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arestavo
Did you already do some basic troubleshooting steps stickied to the top of this forum?
Steps 1 and 2 have a very good chance of fixing the issue, especially if you had a different video card installed and you didn't use DDU to clean out the residual software/registry gunk left over after you installed the new card.
thanks a lot , I had a different video card ( GT730 ) now I try to do the steps[/code]
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 7:54 PM
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Ok i tried,the framerate is a bit better but the drop down to 0% remain, i've tried a clean uninstall,clean install and activate a debug mode :(
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 8:08 PM
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Now i'm trying to underclock the card
post edited by EnigmaTon - Sunday, July 03, 2016 8:33 PM
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 8:33 PM
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---UPDATE---
i've underclocked the card at -100 of memory and core, nothing changed..
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arestavo
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 8:46 PM
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With those troubleshooting steps completed, it looks like it might be a power delivery issue.
Can you try different PCIE power connectors on the card? If not, can a friend test it in their computer, or do you have a spare power supply to test with? Or maybe even a computer repair shop that can try it out to see if the same thing happens to the card in their test system?
I'm trying to narrow down the issue, and it might be the power supply, or perhaps the GPU, that is the problem.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 8:49 PM
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A shop sold me both video card and power supply that are perfectly under warranty , tomorrow I will speak with them to see what to do,
I bought videocard and PSU yesterday, The store has also mounted component
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arestavo
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 9:14 PM
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I completely forgot to say this, but you really should check to make sure that all of your power connectors are firmly seated. If you have a modular PSU check those, as well as any hooked to the motherboard, as well as the GPU.
It would be a good idea to monitor the CPU temperature as well. If the CPU is overheating and downclocking to protect itself, that can also severely impact GPU performance as well. A benchmark like Valley or Heaven won't strain a CPU nearly as much as a game like The Witcher 3 would.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Sunday, July 03, 2016 10:54 PM
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arestavo
I completely forgot to say this, but you really should check to make sure that all of your power connectors are firmly seated. If you have a modular PSU check those, as well as any hooked to the motherboard, as well as the GPU.
It would be a good idea to monitor the CPU temperature as well. If the CPU is overheating and downclocking to protect itself, that can also severely impact GPU performance as well. A benchmark like Valley or Heaven won't strain a CPU nearly as much as a game like The Witcher 3 would.
I will double check the connectors from my trusted technician because I'm afraid to do it alone , however, the temperature of the CPU is about 55-60C at most Sry for my english, i'm italian
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Sajin
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 0:12 PM
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#1 Is your cpu overheating?
#2 Running a 1440x900 resolution is causing your cpu to do all the work. Buy a better monitor.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 0:15 PM
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CPU temp is 55-60 Grades, absolutley not overheating @Sajin But if i use a 1920x1080 resolution with DSR is a same thing? UPDATE: Is impossible to use a 1920x1080 with DSR because i have selected only some things before do a clean NVIDIA driver install, the DSR is disappeared... however, the CPU running fine and go at 65-70% of maximum use in GTA V (80% only few time), With my old GT730 in 1440x900 CPU was fine without stuttering WITH GAMES OF LIGHT AS A FEATHER SUCH AS "DIRTY BOMB" THE GPU USE GO TO 20% and drop to 16% causing stuttering at medium setting! only 60-50FPS for my GTX960, with my old GT730 i have 60-45fps with same graphics settings without stuttering in same game...
post edited by EnigmaTon - Monday, July 04, 2016 0:30 PM
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 1:16 PM
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I tried to format to Windows 7 Ultimate and update bios, nothing!!!
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himmatsj
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 1:51 PM
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Hi man, I don't think there is any issue with your GPU. VRel is the best PerfCap reason. Better than Power or Temperature. VRel means your GPU is being utilized to the max and is running fine.
What previous GPU did you have?
I also have GTX 960 SC, 8GB RAM, 1TB HDD and i5 3330. I don't get any particular bad stutter. Can you show us some performance graphs to understand the nature of the issue?
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 5:26 PM
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Absolutely yes, screen here:  however it may be the fault of the power supply?,is a 80Plus Bronze PSU, but I've never felt this brand and I do not particularly reliable... I noticed that when I use the medium or low graphic settings the stuttering decrease significantly, however, the GPU does not seem to be able to reach 99% if i use the high setting and it stutter :( I tried: - A DDU in safe mode and clean boot + Clean NVIDIA Driver install
- Use single display mode + prefer maximum performance (in energy saving)
- Use GTX960 on PhysX setting
- Underclock the video card
- Use a +50mV of voltage (with PrecisionX)
- Increase to 110% the power limit (and at 95Celsius the temperature)
- Use 13000MB of file paging
- Disable the file paging
- Use NVIDIA Debug mode
- Updating the BIOS
- Format the System and install W7 Ultimate (X64)
Nothing has changed :( My system is: AMD FX-8370E @3.6GHz / Eight-Core (Turbo up to 4.3GHz) + 1TB HDD 7200RPM + 8GB DDR3 1600MHz RAM + GTX960 2GB SSC...all powered by "Kolink KL-600, 600W, 80Plus Bronze" ..37.5A in V12 Line
post edited by EnigmaTon - Monday, July 04, 2016 6:37 PM
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 6:28 PM
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UPDATE, i've tried a Unreal Heaven Benchmark 4.0 He started to do much stuttering and I got a lot of drop of GPU Usage  (The part to see is "Utilizzo GPU") Setting of Unreal Heaven: Preset: Custom API: DirectX11 Quality: High Tessellation: Off Stereo 3D: Off Multi-monitor: Off Anti-aliasing: x4 Fullscreen: On Resolution: 1440x900 Benchmark SCORE: 2031 points GPU Temp in Benchmark: 72-71 Celsius (159.8-161.6F),temp seems good.
post edited by EnigmaTon - Monday, July 04, 2016 6:37 PM
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himmatsj
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 6:40 PM
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Can you show power consumption of GPU and CPU usage graphs from MSI AfterBurner?
seems like a fault with your system, not the GPU.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 6:59 PM
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Yes!, thank you for your time! GPU TDP:  CPU Usage:  (GPU TDP drop down [17%-20%] when gpu start to make stuttering, GPU TDP fluctuates to 50 from 67% in game) (CPU usage is around 48-52, seems good...) It could be the power supply the cause of this? The game run in 1440x900 all at high setting (AA at Medium, Motion blur medium), the rest is maxed out.. Frame-rate is 50 to 60fps, but stuttering make this game unplayable
post edited by EnigmaTon - Monday, July 04, 2016 7:26 PM
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arestavo
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 7:40 PM
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If this is happening even in the benchmark Heaven or Valley, then I don't think it's the hard drive loading textures into memory causing the slow downs/stuttering.
Can you monitor each CPU thread to see if one of them hits 100% (or close) when the stuttering happens? That would indicate the CPU not feeding the GPU fast enough causing stuttering.
When you get the stuttering, is your VRAM capacity filled up to max? From the one screen shot it doesn't look like it, but just checking.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 8:03 PM
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The gpu memory use is around 650-730MB on The Forest and on Unreal Heaven, when the stuttering appears the memory usage remain the same (The stutter on Unreal Heaven benchmark appear on GPU usage graphs but it is difficult to see, the stuttering a little more easy to see start at 16 scenes and do few time) This is the screen when stuttering appears of all 8 cores:  none of eight core reaches 100% during the stuttering... For this guys the gpu usage on "The Forest" drop at 88% but is a normal drop and absolutely don't stutter, he goes at ULTRA settings: [w w w . youtube. com /watch?v=qf72rSdhZTc], For me "The Forest" drop at 60/50% and stutter a lot, i'm tried to go at ULTRA setting but Motion blur and AA at medium @arestavo
post edited by EnigmaTon - Monday, July 04, 2016 9:04 PM
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Sajin
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 10:02 PM
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EnigmaTon
only 60-50FPS for my GTX960, with my old GT730 i have 60-45fps with same graphics settings without stuttering in same game...
Classic sign of a bottleneck. The reason you didn't have stuttering with your old video card is because the gt 730 was slower and your cpu could provide it with the proper commands. Now the 960 is faster and the cpu can't keep up with the gpu at the 1440x900 resolution.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 10:11 PM
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Sajin
EnigmaTon
only 60-50FPS for my GTX960, with my old GT730 i have 60-45fps with same graphics settings without stuttering in same game...
Classic sign of a bottleneck. The reason you didn't have stuttering with your old video card is because the gt 730 was slower and your cpu could provide it with the proper commands. Now the 960 is faster and the cpu can't keep up with the gpu at the 1440x900 resolution.
Dynamic screen resolution (DSR) can solve this problem?
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Sajin
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 10:13 PM
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EnigmaTon
Sajin
EnigmaTon
only 60-50FPS for my GTX960, with my old GT730 i have 60-45fps with same graphics settings without stuttering in same game...
Classic sign of a bottleneck. The reason you didn't have stuttering with your old video card is because the gt 730 was slower and your cpu could provide it with the proper commands. Now the 960 is faster and the cpu can't keep up with the gpu at the 1440x900 resolution.
Dynamic screen resolution (DSR) can solve this problem?
Yes.
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 10:15 PM
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Sajin
EnigmaTon
Sajin
EnigmaTon
only 60-50FPS for my GTX960, with my old GT730 i have 60-45fps with same graphics settings without stuttering in same game...
Classic sign of a bottleneck. The reason you didn't have stuttering with your old video card is because the gt 730 was slower and your cpu could provide it with the proper commands. Now the 960 is faster and the cpu can't keep up with the gpu at the 1440x900 resolution.
Dynamic screen resolution (DSR) can solve this problem?
Yes.
what is the minimum resolution should I use? how do I enable dsr nvidia expirence in games that do not recognize? for example in the nvidia panel settings when I select the exe of the game (the forest) but dsr option does not appear
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 10:31 PM
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Ok, i found the solution for keep on the DSR on the forest, Now I try, I'll know
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EnigmaTon
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Re: HELP!! GPU Usage drop down, stuttering and GPU-Z say: vRel [EVGA GTX 960 SSC]
Monday, July 04, 2016 10:51 PM
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 I LOVE YOU! I LOVE YOU!!!!!!!!!!! YOU'RE THE BEST!!!!!!!!!!!!!!!!!!!!!!!!!!! only a few normal drops! My res is: 1764x1102!! (how to scale in 1600x900? or 1920x1080?) (what is plus light and with no gpu drops?) I TRIED UNREAL HEAVEN BENCHMARK / X8 AA + ULTRA PRESET + 1764x1102 - NO DROPS!!!!!!!! only a normal drops when change the scenes :D <3
post edited by EnigmaTon - Monday, July 04, 2016 11:05 PM
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