[Power/EMI] I discover why sometime PC become fast and low input lag and otherwise feel high input lag

[dervu]

I want to share some results I had in recent 3 months.
I am not saying it is permanent fix (that needs probably months to pass to be sure) let alone fix for everyone.
Seems that symptoms can overlap between different sources of this issue. For example I didn't have any problems with display quality, but with mouse movement, keyboard lag, desync. Others have both issues, but have already checked things I did and they didn't help them permanently/for longer time.
Didn't have other symptoms in any devices other than laptop/PC.
Also there is major difference in one test that I will mention below that shows something is really screwed up for many people who have more severe symptoms.

At beginning of this year I hired electrician to check my wiring. He found out fusebox was bad (30 y old fusebox with old type screwed in fuses).
Also my electrician told me that there is a problem on whole neighbourhood with voltage spikes. Measured by multimeter it showed max 2,5V drops, but UPS shows as low as 224V (when it should be 230V). They fixed those spikes for some period of time years ago (big grocery store near was the problem), but then it came back and since then it is there.
Month later electrician replaced fuse box, instant difference. Mouse behaves as it should, allowing to build muscle memory, gaming started to feel like it should.
After having it stable for 1 month I wanted to make sure that there is no difference between what should be perfect and what I had.
I bought online UPS (double conversion + voltage stabilization).
Comparing mouse movement while connected to UPS and straight to socket it shows clear but subtle difference ( compared to what fixing fusebox bring it is minor). On UPS cursor stops faster, without UPS it is more loose.

What UPS bring in measurements is lowering Total Harmonic Distortion from 01.8%-2.2% to 00.7% + voltage stabilization.
Then I went to main point of buying UPS. Checking if it runs different on battery (off grid) only vs connected to socket (on grid). No difference at all. < This is the major difference between me and others who have tried running on battery and having it run perfectly on battery and not while connected to grid, while also having more symptoms than me.
This shows that at least for me it was about wiring (major) and a bit of voltage spikes or lowering THD a bit (minor).

For others it might be more complicated. Don't expect anyone to bring out perfect solution for you, because there might not be universal fix Maybe only if you have symptoms perfectly aligning with other people. I think that trying to run on UPS battery only and comparing it at least can give you clear answer if something is wrong (if you do not have ability to move your PC somewhere else). At least for this pandemic time it is nice way to check.

Summary:
- Loose connections / wiring at old fuse box was major source
- UPS on battery shows no difference vs UPS connected to grid.
- Using UPS connected to grid vs PC connected straight to socket shows subtle difference - either having pure sine wave or stabilizing voltage brings that effect.

I hope that this helps someone.

[delve]

I want to share some results I had in recent 3 months...

Yes, interesting. There was some talk about fuse boxes in nvidia forum, but nothing came of it. Hope you can give us another update in a couple of months or so. Is your desync also fixed?

[dervu]

I want to share some results I had in recent 3 months...

Yes, interesting. There was some talk about fuse boxes in nvidia forum, but nothing came of it. Hope you can give us another update in a couple of months or so. Is your desync also fixed?

Yes, before using UPS desync wasn't there, it was really nice to play. Both PC and routers were connected to sockets using powerbars.

Now need to play more online with UPS on both PC and routers to tell if it is any different.

[yonaxsangi]

I want to share some results I had in recent 3 months.
I am not saying it is permanent fix (that needs probably months to pass to be sure) let alone fix for everyone.
Seems that symptoms can overlap between different sources of this issue. For example I didn't have any problems with display quality, but with mouse movement, keyboard lag, desync. Others have both issues, but have already checked things I did and they didn't help them permanently/for longer time.
Didn't have other symptoms in any devices other than laptop/PC.
Also there is major difference in one test that I will mention below that shows something is really screwed up for many people who have more severe symptoms.

At beginning of this year I hired electrician to check my wiring. He found out fusebox was bad (30 y old fusebox with old type screwed in fuses).
Also my electrician told me that there is a problem on whole neighbourhood with voltage spikes. Measured by multimeter it showed max 2,5V drops, but UPS shows as low as 224V (when it should be 230V). They fixed those spikes for some period of time years ago (big grocery store near was the problem), but then it came back and since then it is there.
Month later electrician replaced fuse box, instant difference. Mouse behaves as it should, allowing to build muscle memory, gaming started to feel like it should.
After having it stable for 1 month I wanted to make sure that there is no difference between what should be perfect and what I had.
I bought online UPS (double conversion + voltage stabilization).
Comparing mouse movement while connected to UPS and straight to socket it shows clear but subtle difference ( compared to what fixing fusebox bring it is minor). On UPS cursor stops faster, without UPS it is more loose.

What UPS bring in measurements is lowering Total Harmonic Distortion from 01.8%-2.2% to 00.7% + voltage stabilization.
Then I went to main point of buying UPS. Checking if it runs different on battery (off grid) only vs connected to socket (on grid). No difference at all. < This is the major difference between me and others who have tried running on battery and having it run perfectly on battery and not while connected to grid, while also having more symptoms than me.
This shows that at least for me it was about wiring (major) and a bit of voltage spikes or lowering THD a bit (minor).

For others it might be more complicated. Don't expect anyone to bring out perfect solution for you, because there might not be universal fix Maybe only if you have symptoms perfectly aligning with other people. I think that trying to run on UPS battery only and comparing it at least can give you clear answer if something is wrong (if you do not have ability to move your PC somewhere else). At least for this pandemic time it is nice way to check.

Summary:
- Loose connections / wiring at old fuse box was major source
- UPS on battery shows no difference vs UPS connected to grid.
- Using UPS connected to grid vs PC connected straight to socket shows subtle difference - either having pure sine wave or stabilizing voltage brings that effect.

I hope that this helps someone.

Bro can u show me the old fusebox and new fusebox pictures? its still consistent?

[dervu]

Old and new:
Yes it is still consistent without UPS. Now I switched to using UPS which is a cherry on the top. I might check out in month how it behaves without UPS again. No point for me chasing it anymore when it works like now. Chasing electrician to fix voltage spikes in whole area is like mission impossible.

[yonaxsangi]

Old and new:
Yes it is still consistent without UPS. Now I switched to using UPS which is a cherry on the top. I might check out in month how it behaves without UPS again. No point for me chasing it anymore when it works like now. Chasing electrician to fix voltage spikes in whole area is like mission impossible.

Old and new:
Yes it is still consistent without UPS. Now I switched to using UPS which is a cherry on the top. I might check out in month how it behaves without UPS again. No point for me chasing it anymore when it works like now. Chasing electrician to fix voltage spikes in whole area is like mission impossible.

Mine is like this its old and should i replace it? which fuse box is considered good bro help me

[dervu]

Idk man. I am not an expert. My best bet is that this old fuse box was just reinforcing this issue. If you have this kind like on photo it is probably not the problem. Go find electrician and let him check things, that's what I did. If everything turns out ok, then it will be hard to find, like many people tried.

[f1ndus]

okay update littlebit.

Today i was something doing inside distribution box in my house, i was trying do restart breakers..
But when i plug again on breakers then one phase doesnt worked, idk why but my fridge + some lights doesnt worked..
idk what happend but i didnt knows how to fix it, so i called my father. He took his electric screwdriver and he was pushing breakers and that little box, and when he was pushing and hitting that box all lights in house was blinking, it was weird but he saw some breakers had bad contact..

something like this but we have very difference

https://www.electricianinedinburgh.com/ ... 12/1-1.jpg

After he tightened all cables from breakers and contacts everywhere i was like its ok now fridge worrking.. but after few minutes i goes on my pc and start cs:go dm and what did i seeee, my game was completly changed, mouse sensitivity faaaking amazing and screen was smooth as fk.. i am sure it was no accident with this breakers and stuff.. its weird but i think in my case is something with this box with breakers.. i will testing my game how long will be smooth and fast and after that i want change everything inside this box with breakers becouse it had BIG EFFECT on my pc..

[f1ndus]

yeeah, now i see posts before me with "fuse box" unbelievable!

[JDoe]

Japanese audiophile found a solution to your dirty electricity problem. Search for a video called "Japanese Audiophiles Are Going to Extremes" (forum won't let me post a link).

[Moderator Edit to add video. Please note links are blocked only for a newbie's first few posts, to protect these forums from spammers]

phpBB [video]