Question The most complex and illusive PC/Hardware issue I have ever encountered. Mouse/Keyboard input lag related

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CrucialNUGS

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Nov 24, 2011
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*UPDATE:
Well I figured Id update this so people with the issue can see this. I ended up buying a double conversion UPS (a Tripp Lite one) and it actually fixed the input lag pretty much fully. I placed my modem, router, PC and monitor on it. The odd thing about it is it did not fix it instantly. It was better the moment I plugged it in but definitely still not functioning like a know a proper functioning PC to work. After near 4 hours of playing with it hooked up my inputs just kept getting smoother. Believe me the nature of this issue is truly absurd to me. On one hand this is a less than ideal solution to a problem that I simply could not do anything about for nearly 2 years. Its expensive, heavy and big, and noisy as **** but even still it fixes the issue. The one thing is my mouse still feels a little off like its got some acceleration but I suspect using it even longer will iron that out. Anyway I guess this confirms that it is electrical in nature as was suspected by many but I just cannot wrap my head around how that actually works. If anyone has any ideas why the power from the 3 houses (only things in common are same power company and ISP) I have tried is causing this insane issue me and others would love to know. I know it has to be related to RFI/EMI transients on the power at this point I just don't understand how. My UPS reports that its receiving enough voltage, and same with when I test my outlets. Anyway to all that have the same issue as me I hope this gives you some information to work with. I really wish I didnt have to use this thing to have my PC properly functioning but it is what it is. I will be having another electrician coming out to check everything over again this week.



This problem has been the most difficult to diagnose issue I have ever seen or heard of on a PC. Thought I might get some insight (hopeful) as no one that has the issue has been able to find a real solution as of yet. I anticipate many people will doubt my experiences and the symptoms I have observed. I would doubt someone saying the same things that I am if my PC functioned properly however I have seen what Ive seen and know it is real. For those that are willing to believe what me and others have said on this subject- thank you.

Symptoms:

Input lag across the board in both games and windows, both mouse and keyboard inputs are inconsistent and change over time. At times the dpi increments on my mouse hardly change the sensitivity, other times it adjusts a ton. The monitor display suffers hitches, and micro stutters, of the same varying consistency. Makes game play at 140fps and below look and feel like 60 or lower. Internet webpages load in slowly (blocks of the page load in at a time), you tube videos and twitch buffer at random times with no packet loss. At times the lag is minimal at times its unbearable. The input lag and video hitches seem entirely inconsistent however I have found that nearly any hardware state change/software change can affect it to varying degrees. Everyday, even every hour my mouse feels and tracks differently. Now the really interesting stuff: Practically any hardware/software setting or change I can make to my system will alter the behavior of the mouse/keyboard inputs. Keyboard input is possibly the easiest way to tell as I can change different settings and holding down keys in windows search bar spits the characters out at different speeds. I have posted around many forums and seen many others with the same issue being told its placebo however this is simply not the case. I know a properly functioning PC should not behave this way but my system and others do.

Things I have tried:

Current PC Specs:

CPU: Intel i5 8600k
Motherboard: Asrock Taichi z370
Ram: Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz C15
SSD/HDD: Intel SSD 760P 512GB M2 SSD
GPU: EVGA GTX 1660 TI 6GB
PSU: EVGA Supernova 750 G3
Chassis: Phantek Entho Evolv Tempered Glass
OS: Windows 10 Professional 64bit Build 1803

3 different PC's (completely different specs) 3 different monitors (120hz, 144hz, 240hz) 5 different mice (Logitech G-Pro x2 models , Razer Deathadder x3 models) 3 different mousepads 3 different keyboards Using different circuits and configurations around the house. (some work better than others, however input lag is still present) Different power strips, power conditioners Tested for outlet grounding with 3 pronged tester.

Things that change the mouse/keyboard behavior and monitors display quality:

Moving the monitor/router/modems/pcs power cord to different outlets, different power strips etc. Note: My Wi-Fi does not even work if my router/modem are on the same outlet/power strip- the signal shows up but no connection. Changing which USB ports the keyboard/mice are plugged into. Applying tinfoil to any power cord, or mice/keyboard USB cables. Applying Ferrite (can mitigate electrical interference) beads to any of the above cords. Changing nearly any BIOS/Windows 10 settings. Adjusting GPU fan/power settings. Adjusting nearly any settings in NVIDIA control panel change the mouse behavior. Applying overclocks, disabling all OCs/turbo/speedstep. Adjusting/propping up the GPU (seems like the positioning changes mouse behavior heavily). Changing case fan profiles- usually lowering fan speed/power is better. Monitor settings (brightness, color, resolution). Placing phone onto the PC case (doubles mouse sensitivity immediately). Changing where the router/modem is or moving the power cords. Separating all cables from each other.

Now the confusing part. All of these problems happens along with some very peculiar wifi issues in the home. To summarize the way in which my router/modem are plugged in (different powerstrips, plug orientation) affect the quality and behaivor of my wifi. Because of this I decided to explore the possibility of my ethernet cable being the source or my PC problems as well. I contacted the ISP to send a guy out- they did and he got a reading on the cable drop for large voltage spikes. He said that the coaxial cable had voltage leeching onto it using the ISP ground block as a path of least resistance. Told me to contact the power company as it was on their end. Well I readup on some similar issues on cable forums and contacted an electrician about a possible loose neutral in the home just to verify it was not from in home faulty wiring, or a television backfeeding voltage or something. He told me the house was good to go and said that the issue was definitely power company. Well I called the power company and they sent out a tech while I was at work and supposedly they fixxed somthing, but the wifi still behaves erratically and of course my PC still suffers this issue. So I took a measurement of the coax cable and found there is still fluctuating voltage on the shielding (measured shielding to ground). Well I am in contact with the power company to hear the official report of what the tech even did here. I did however in the meantime head to a rental our family owns and tested the PC there. Booted up my PC and although my inputs seemed slightly better I could tell they were still messed up. Then I started testing the things Ive tried before- ferrite beads on cables, changing around the power configuration (moving outlet for monitor etc) and any BIOS changes and found that my mouse behaivor is still changing.

Before all of this I thought it has to be something with my houses wiring (floating neutral/ground) or a ground loop being created somewhere, raising the noise floor in the system which in turns causes data loss. However now I am just considering that my PC was damaged in some way that produces these results. Since testing at the 2nd house I have swapped out GPU, RAM, and SSD and my rig functions the exact same. I am not sure if this is a combination of hardware/software bugs or what. If my rig was truly damaged I would think that I would see much more serious affects. All I know is my PC is not functioning properly. There are many others out there with nearly the exact same symptoms (on completely different systems, in completely different parts of the world) but none of them have found a proper solution, just more things that change the behaivor for a time. The input lag always comes back and mouse/keyboard behavior is totally inconsistent. At times it operates nearly perfectly but not for long. Now I have posted my own threads plenty enough as well as read many on this very issue. People tend to say this is placebo, or we are insane to think its possible for all this to be happening. Well I cannot convince you beyond saying that I am fully aware how crazy of an issue it would have to be to transcend entirely different PCs or houses, however the truth is I and others have observed this very behaivor beyond doubt. Many of us questioned ourselves, but when you find that you can actually change the inputs behaivor yourself by doing certain things software/hardware side, you realize how very real it is. Anyway thanks for your time and if you have any doubts that there are others out there with this I recommend you read some of the linked threads below.

Some other threads/docs relating to the issue:

https://www.overclock.net/forum/375-...em-bounty.html

https://www.overclock.net/forum/6-in...lag-mouse.html

https://www.overclock.net/forum/375-...-response.html



https://www.overclock.net/forum/375-...ter-while.html


https://www.overclock.net/forum/6-in...-hardware.html - Note: R0ach is seen as a bit of a meme on OC.net because of his hypochondriac ways regarding his BIOS and PC optimizations. I have concluded however that he is experiencing the same issue as the rest of us and just believes it to be normal behaivor when in reality his PC is just like ours, displaying completely inconsistent inputs.

https://www.overclock.net/forum/375-...problem-5.html

https://community.amd.com/thread/235028




http://www.jonnyguru.com/forums/show...ssues-in-House
 
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GrandSACHI

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Did you try to plug your PC on a good UPS unit instead of the wall outlet? And I don't mean a surge protector bar, but a real Uninterruptible Power Supply.
They are designed mainly to provide power in case of outage, but the good ones also protect against voltage reduction or spikes, various electrical noise and unstable frequency or waveform.