Originally Posted by CrucialNUG
I appreciate you chiming in with your experiences. The fan speed settings definitely something that sounds familiar as I have seen some bizarre stuff like that. Two people I know that have identical issues to us have purchased double conversion UPS said they help abit but do not fix the issue which kind of rules out the "dirty power". My guess is that some part of my PC is damaged causing these issues as moving locations did nothing. So im assuming you did not ever solve yours? I mention the other wifi issues etc as I believe it could be related.
Mine is pretty much completely solved.. that's what I meant in my post. The original problem I had is gone.. my aim feels normal, stabilized and consistent every day. Just that along the way, I discovered a million different ways you can "adjust" your aim feel if that makes sense. Just when you think you have the best setup possible, you learn something else about your system lol.
For example, while I was trying to solve my original problem, I ended up trying a lot of different things like using a single monitor only. After fixing my original problem (which I found in the end wasn't related to running a single monitor at all) I started reversing some of the changes I made in my system. I began using my 2nd monitor again, but did notice that it made my aim feel worse. It wasn't bringing back my original problem or anything like that... I just noticed I played much better on a single monitor and the having the 2nd one activated as well made my aim feel kind of sluggish. I figured maybe it's a good idea to off the load of running a 2nd monitor onto the integrated graphics of my I7-8700K since it was just sitting there deactivated and not being used. So I plugged my 2nd monitor into that instead (via HDMI by the way, which was another requirement apparently, because Displayport did introduce some funky aim feel once again similar to me just running the 2nd monitor straight to my GPU (ASUS 1080ti). So I recently found that running my extra monitors (an ASUS PB278Q 1440P for general desktop use & a Sony 1080P TV) via HDMI made it so my aim felt exactly the same, whether I have 1 monitor on, 2 or even 3 (which I never do anyways, lol). The only one on Displayport is my 240hz ASUS PG258Q. I should honestly write a guide of all the things I learned along my long journey
Some of the stuff came from the "polling rate precision" thread that is floating around here on OC.net like IRQ priorities & devices on MSI mode etc. Once you get into all this crap it's like it becomes an obsession and you spend more time fiddling around then actually gaming but I think I've finally reached that point where theres no further improvements to be made and I can just forget about it finally
EDIT: And your typical person will look at a system and even if it has great amazing specs and should be able to run something like 2 monitors no problem whatsoever blah blah blah... it's not always that simple.
EDIT #2: Also read more of your post that I kind of glossed over before but your WiFi/Ethernet issue reminded me of something I ran into when I got my double-conversion UPS. Since I was feeling assured that my power related issues were gone, at the time I was just narrowing things down since I felt there was still improvement to be made. One of the things I had thought of as well as a source of "interference" was the ethernet cable (considered basically every cord going into the back of my PC, really). My way of easily A-B testing it to see whether it would make a difference to aim feel at all was unplugging it and using my PC's built in Wifi card for internet instead. I mean... any electrical interference would be eliminated via Wifi! Makes logical sense lol.... not that I ever intended to run permanently on Wifi... wifi is freaking awful for gaming but it would help me understand the issue more. Sure enough, running off Wifi and removing the ethernet cable from the back of my PC made my aim feel DRASTICALLY better. So from there I went down the ethernet cable and the chain of stuff connected to that, wondering who could be the culprit. The ethernet cable from my PC went to my internet modem... my internet modem was connected to an 2-outlet extension cord that went to my new UPS for power (the extension cord was just convenient for where my modem was located). The 2nd outlet on this extension cable was powering a Philips Hue bridge (a network device for LED lights) and this bridge was also connected to my internet modem. That's when it occurred to me that the Philips Hue bridge, sharing power with my internet modem on this extension cable and also being linked all together via ethernet cables was probably causing some weird ground loop issue or something. I eliminated the Philips Hue bridge from the chain so only the internet modem was being powered via the extension cable and VOILA... I could now plug an ethernet cable from my internet modem to the PC with no input lag issues at all. My workaround for the Philips Hue bridge was just throwing it onto a wireless bridge on the other side of the house so it could just get a network connection that way... lol. Moral of the story is... there is A LOT of things you could be overlooking that are causing your issues... not just one or two. I could write a novel on all this crap.