The Mystery Behind Floaty Mouse, Low Hz Feeling and Ferrari Peeks

[cerns]

The issue is high impedance of the wiring and "leaking" voltage drift between L and N, the PSU then fails to regulate the power for whatever reason even if the input power is still within allowed operating range and you get unstable +5V and +12V rails.

And just wait that the idiots would again move this thread to "other niche issues" sub-forum with "nO eLeCtRiCiTy tHrEaDs hErE" bullshit, even though 85% of problems that people have in this forum are directly or indirectly caused by power quality, not by windows software or bios or regedit or CMD settings or windows licence or whatever other bullshit people came up with.

Hello, first of all, thank you for your reply. I have a question for you.

You mentioned that the problem is caused by voltage fluctuations or leakage between Live (L) and Neutral (N), resulting in unstable 5V and 12V power rails.

But if that's the case, how is it possible that so many people, including myself, experience the exact same issue even after testing their PCs in completely different locations?

I even tested mine in a house where everything had previously worked perfectly fine without any of these issues.

I'm genuinely curious how this could be explained by your theory.

[cerns]

Actually, I understand if they move it, since there are types of input lag that aren't related to this, for example a bad driver or whatever. Maybe most people should know where to open the topic, it doesn't bother me.

But it's good to see that more people agree with this, and yes, this is EMI or RFI, grounding, and it can manifest in many places. Whoever falls for the Secure Boot, registry edit, and Windows problem deserves it... Let me whisper that I've tried Linux too.

I don't really see the point of moving this discussion to another thread, since this is already a general discussion specifically about the possible root causes of the issue.

[ablemor]

you cant find solution here currently.

[MK92]

The issue is high impedance of the wiring and "leaking" voltage drift between L and N, the PSU then fails to regulate the power for whatever reason even if the input power is still within allowed operating range and you get unstable +5V and +12V rails.

And just wait that the idiots would again move this thread to "other niche issues" sub-forum with "nO eLeCtRiCiTy tHrEaDs hErE" bullshit, even though 85% of problems that people have in this forum are directly or indirectly caused by power quality, not by windows software or bios or regedit or CMD settings or windows licence or whatever other bullshit people came up with.

Hello, first of all, thank you for your reply. I have a question for you.

You mentioned that the problem is caused by voltage fluctuations or leakage between Live (L) and Neutral (N), resulting in unstable 5V and 12V power rails.

But if that's the case, how is it possible that so many people, including myself, experience the exact same issue even after testing their PCs in completely different locations?

I even tested mine in a house where everything had previously worked perfectly fine without any of these issues.

I'm genuinely curious how this could be explained by your theory.

It is not impossible that 2 different houses would have the same wiring problems, especially if wiring is 35+ years old or has shared neutrals with neighbours. And from what I undestand, you only switched houses and ISPs, but the PC has been the same? In this case its probably just very weak / dying PSU.

There also is a possibility that unstable electricity permanently damages VRMs on motherboard or PSU capacitors...I don't know. Try to clear CMOS battery before testing it in a new house, and wait at least 12+ hours before turning on the PC at "good" location so any leftover electricity is fully discharged.

[gideonmontes]

Hi everyone. I’ve previously posted a few times about my attempts to fix desync issues and "floating" mouse cursor problems. Those earlier posts were nonsense, but I have now managed to fix the mouse latency 100%. I can confirm that it was indeed an electrical issue—in my case, the TV’s power cable wasn’t plugged in all the way! xD I happened to be messing around near my router (which is located behind the TV) and noticed that the TV’s power cable was barely hanging on. Without really thinking about it, I just plugged it in properly and went about my day. Many hours later, when I sat down at my PC, I immediately noticed a change in how the mouse felt. It wasn’t a 100% improvement right away, but over the next couple of days, it kept getting better and better—so, in my situation, it wasn’t an instantaneous fix. I am now 100% convinced that the issue was related to the electrical setup. For 8 years, I tried everything to fix these problems—everything except considering the television. I’ve used two different systems—one with an Intel 10700KF and my current one with a 7800X3D—and both had the exact same issue: upon startup, the mouse cursor would feel "floaty" or sluggish. Restarting the PC would fix it, but then another restart might cause the problem to return. It was a persistent, recurring issue, but now it has been completely resolved. So, guys, take a look at your televisions and any other appliances that use detachable power cables; try unplugging them and then plugging them back in firmly, ensuring they are fully seated, and then observe the situation for a couple of days.It has been 3 months since the mouse latency issue was fixed, and everything is working stably.

[gideonmontes]

But the desync issue hasn’t gone away; it’s really a 50/50 situation. Sometimes everything works perfectly—regardless of whether it’s morning, afternoon, evening, or night—but other times it’s an absolute nightmare. I suspect the problem lies either with my ISP or with the servers themselves. That’s why I still drop by here from time to time—to read some of the posts that contain corrections.

[Asesino34]

Yes, this is an electrical problem, I'm not an electrician, I don't have a degree or anything like that.

I am sure of it because I've replaced power supplies, motherboards, been on Intel platforms, nothing helped, I even had 10- and 12-layer motherboards and it did nothing. Once I tried a power supply with a Double Forward topology and the mouse immediately started behaving differently, although even this wasn't a 100% solution; I tried 2.4 GHz radiation, that also helped, I put a magnet on my PC case, that also helped, even though I measured everything with a multimeter and had grounding, everything looked perfect, I have an outlet tester, it showed 0.2V between neutral and ground.

Don't even buy USB EMI filters, that's a total waste of money, maybe buy a device that forces the device into FullSpeed instead of HighSpeed, that can also help a little bit, but that's not the main root cause anyway. My guess is the problem is between the monitor and the GPU. There was a time when I used a USB-C to HDMI adapter for my monitor and it got fixed, for example.

Currently, I work in this field, oh I forgot to mention, AMD officially notes that GPU memory can interfere with 2.4 GHz, as well as with RAM, yes, the memory, and not the core frequency, there are so many tiny details, they are just hidden from us. In a generally well-working house, there is probably a very strong grounding that is not tied to neutral.

Besides these, for example, the Y-capacitors on the power supply also matter, well anyway I won't list any further, I know a lot about this, I'll just say don't bother with reinstalling Windows 11, Secure Boot, and nonsense like that, pay attention to these, you shouldn't follow them.


There is a TinySA spectrum analyzer which is affordable for an average person, but I don't know how normal/reliable of a device it is, and I would immediately examine the DisplayPort or HDMI cable and nothing else. There is no point in examining the VRM anyway, plus I've tried a lot of frequencies since some motherboard manufacturers allow us to change the switching frequency, but it did almost nothing. By the way, if you take an AM radio, you can hear these things yourself too.

Yes, I also think it's the Wi-Fi signals and a possible issue between the GPU and the monitor. I have two router signals (5.1 GHz and 2.4 GHz) from the house next door, right next to my room, both running at full signal strength.

The thing is, if Wi-Fi signals were the cause, simply placing the PC somewhere with very few nearby networks should be enough to test it. At least, I haven't read about anyone actually doing that. However, you'd have to move somewhere very remote to properly carry out that test.

We can't rule out the possibility that the amount of data traveling through the air (Wi-Fi) could be affecting electrical components. How would you shield your PC against those signals? I think it was Hyote who mentioned that white PC components aren't affected by a certain type of interference. I'm keeping that in mind for a future build.

As for HDMI and DisplayPort cables, I've tried several as well. I was actually thinking about buying a 0.5-meter cable, which is about as short as you can get.

[ablemor]

A 0.5-meter cable won't solve it. Anyway, you can shield it with copper foil for example, put some on your PC case and test it, it might reflect the noise. But as I said, the easiest thing would be to get a spectrum analyzer. The problem is that on this forum, many people are stuck on Secure Boot, Win 11, and reinstalling Linux, nothing else. That's why it's hard to find a solution here, but fortunately there are 1-2 smart guys here.
The cause of the desync can be the RAM, CPU, GPU, Internet, and even DPC latency.

[JerryKS]

Yes, this is an electrical problem, I'm not an electrician, I don't have a degree or anything like that.

I am sure of it because I've replaced power supplies, motherboards, been on Intel platforms, nothing helped, I even had 10- and 12-layer motherboards and it did nothing. Once I tried a power supply with a Double Forward topology and the mouse immediately started behaving differently, although even this wasn't a 100% solution; I tried 2.4 GHz radiation, that also helped, I put a magnet on my PC case, that also helped, even though I measured everything with a multimeter and had grounding, everything looked perfect, I have an outlet tester, it showed 0.2V between neutral and ground.

Don't even buy USB EMI filters, that's a total waste of money, maybe buy a device that forces the device into FullSpeed instead of HighSpeed, that can also help a little bit, but that's not the main root cause anyway. My guess is the problem is between the monitor and the GPU. There was a time when I used a USB-C to HDMI adapter for my monitor and it got fixed, for example.

Currently, I work in this field, oh I forgot to mention, AMD officially notes that GPU memory can interfere with 2.4 GHz, as well as with RAM, yes, the memory, and not the core frequency, there are so many tiny details, they are just hidden from us. In a generally well-working house, there is probably a very strong grounding that is not tied to neutral.

Besides these, for example, the Y-capacitors on the power supply also matter, well anyway I won't list any further, I know a lot about this, I'll just say don't bother with reinstalling Windows 11, Secure Boot, and nonsense like that, pay attention to these, you shouldn't follow them.


There is a TinySA spectrum analyzer which is affordable for an average person, but I don't know how normal/reliable of a device it is, and I would immediately examine the DisplayPort or HDMI cable and nothing else. There is no point in examining the VRM anyway, plus I've tried a lot of frequencies since some motherboard manufacturers allow us to change the switching frequency, but it did almost nothing. By the way, if you take an AM radio, you can hear these things yourself too.

Yes, I also think it's the Wi-Fi signals and a possible issue between the GPU and the monitor. I have two router signals (5.1 GHz and 2.4 GHz) from the house next door, right next to my room, both running at full signal strength.

The thing is, if Wi-Fi signals were the cause, simply placing the PC somewhere with very few nearby networks should be enough to test it. At least, I haven't read about anyone actually doing that. However, you'd have to move somewhere very remote to properly carry out that test.

We can't rule out the possibility that the amount of data traveling through the air (Wi-Fi) could be affecting electrical components. How would you shield your PC against those signals? I think it was Hyote who mentioned that white PC components aren't affected by a certain type of interference. I'm keeping that in mind for a future build.

As for HDMI and DisplayPort cables, I've tried several as well. I was actually thinking about buying a 0.5-meter cable, which is about as short as you can get.

I feel like maybe it is related to wifi as well.. I changed my 2.4ghz bandwidth from 40Mhz to 20Mhz and all of a sudden my PC ran like butter and I was amazed that this thing can be this smooth. I thought I fixed the input lag for real this time but next day it came back..then I tried to switch to 40Mhz and back to 20Mhz on 2.4ghz wifi of mine but no change. I wonder what if neighbouring wifi's are causing this input lag issues but I can't turn other's wifi off. Soo Idk.. But I won't forget the smooth feeling of gaming I got that time.. It was like heaven.. So Enjoyable.. Wish Someone could find the solution..

[astroasis]

There is a specific equilibrium your house needs in order for electricity to work properly and everything connected to it. Ive quite literally had cardboard boxes sat in front of wall outlets causing input lag which alleviates after moving it, probably nobody can even explain that