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Electrical issue causing input de-synchronization or input loss

271335 Views 1539 Replies 113 Participants Last post by  vf-
Just going to kick up another thread similar to CrucialNUG's thread, will link if you weren't following at bottom. Still trying to gather evidence to help draw conclusions on the problem and to help truly resolve this type of issue, everything is pointing to issue with electrical flow or grounding impedance.

Circuit 1 (2 mins prior to the next video, game left running between etc)

Original File: https://www.dropbox.com/s/8oi5uxfby57j4zz/Circuit 1 Fast 937AM.MOV?dl=0

Circuit 2 (Another circuit, just extension cord to transfer power to UPS to hallway)

Original File: https://www.dropbox.com/s/8b3cuog8mn0lmgg/Circuit 2 Slower 940AM.MOV?dl=0

Other details also in youtube video description
- No other load on either circuit confirmed via multimeter
- No windows or in-game settings were changed in-between these videos
- Using outlet in the computer room/office then outlet in hallway using brand new extension cable which passes continuity tests for each neutral, ground, phase.
- Putting the extension cord on the same outlet as office and running UPS through it, responsive experience stays.
- videos recorded with iphone, 720p 240fps slow-mo

All electrical systems connected to line interactive UPS to help reduce ground noise through shared path to ground
- router
- monitor
- computer

Other electrical related measurements to compare both outlets, both having same characteristics
- 0.00v neutral to ground when there is no load, otherwise 0.5v with ups connected 'on both' (see next video)
- Volts 117v, ground to hot
- Frequency 59.99-60hz, ground to hot
- Frequency 59.99-60hz, neutral to hot

CrucialNugs thread, currently locked but tons of other info in it related to this problem.
https://www.overclock.net/forum/375...untered-mouse-keyboard-input-lag-related.html

If you have any other suggestions for measurement or tests please post below otherwise I haven't been able to quantify any measurement in Windows that directly correlates to loss/delays. (xperf, windows performance analyzer, hwinfo64)

UPDATE:
Another video of Circuit 1 with my hand more visible in the video for comparison.
- https://www.dropbox.com/s/pykwbjvdans59ia/Circuit 1 Fast 309PM 2020-03-29.MOV?dl=0
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Maybe now all the people screaming placebo will stop whining in every thread about power issues. Good documentation as always.
Maybe now all the people screaming placebo will stop whining in every thread about power issues. Good documentation as always.
"Accuracy and timing feels significantly de-synchronized."

How is this any different from the other thread? I'm looking at the OP, but I'm not finding links to the 240 FPS videos. Though 500+ FPS videos would be ideal.

If a bunch of words is now "good documentation," I guess science won't save us in the end.
Could be your script blocker if you're not seeing videos in my main post.
Could be your script blocker if you're not seeing videos in my main post.
The 480p60 youtube videos? I see them fine.
Thanks for the feedback, the original video is 720p I just checked. Will see why youtube didn't keep it that way.
https://www.wired.com/story/youtube-slashes-video-quality-save-bandwidth/

Youtube is cutting video quality on their side of things at the moment. Noticed last night some of the videos from my favorites had suddenly gotten awful pixel-ly from one day to the next. :\

AFAIK it's due to the current crisis.
Youtube is cutting video quality on their side of things at the moment. Noticed last night some of the videos from my favorites had suddenly gotten awful pixel-ly from one day to the next. :\
AFAIK it's due to the current crisis.
Good point! Thank you
If you really find that diminished quality to be a problem you can always try one of the other video hosting platforms like Vimeo, or even a dropbox upload could be better than nothing at all. Otherwise there are always going to be platforms that refuse to make any changes so you could go with them.

This would be a good time for a niche youtube competitor to steal away viewers come to think of it.
Uploaded the original files to dropbox and updated the main post with links to each. Second video is a little out of focus but you can still see there is a difference between each.
I'm looking at the videos now at 0.25x speed 60 FPS, and I can see the delay on the 2nd video, but I'm having a hard time comparing it to the 1st video because the hand is almost entirely cropped out. So, it's hard for me to tell if that delay is also present in the 1st video.
https://www.wired.com/story/youtube-slashes-video-quality-save-bandwidth/

Youtube is cutting video quality on their side of things at the moment. Noticed last night some of the videos from my favorites had suddenly gotten awful pixel-ly from one day to the next. :\

AFAIK it's due to the current crisis.
so it turns out no, youtube can not run crysis.

got it.
Thanks for taking a closer look, I'll make a better clip.
upload it to pornhub, they still stream HD vids.
I was waiting for someone to say that. It's actually a fairly reasonable idea though lol.
K here's a video with my hand in it, same map and area in-game on circuit 1 which is currently behaving well, no significant de-sync for comparison.

https://www.dropbox.com/s/pykwbjvdans59ia/Circuit 1 Fast 309PM 2020-03-29.MOV?dl=0
I'm using a mousepad, it's as big as my desk (HyperX XLRG). The sound you're hearing is the braided cable scuffing the monitor stand, hard to record hand and monitor at the same time :)
I was waiting for someone to say that. It's actually a fairly reasonable idea though lol.
great minds and all . . :D
The questions I have are:

Did you take the panel cover off and place a clamp meter around the wire at the breaker to check for load?
What's the voltage, neutral to hot under load? Is there a voltage drop compared to no load?

What happens when you don't use the UPS?
How many times did you power down and test again? Could it have been a one time fluke?

And my other question, if every thing is fine in your office, what possessed you to plug your system into an outlet in the hallway? :p
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