Blur Busters Forums

ChristophSmaul1337 wrote: ↑

20 Feb 2026, 18:31

Just adding some information you might want to be aware of before going to inspect your electrical panel. There's electrical installations that don't allow for a low-impedance neutral to earth bond, for various reasons.

A common example is the TT earthing system which not only doesn't require this bond, but explicitly disallows it. There's a good chance you do NOT want to install any low-impedance bond between neutral and earth on a TT system, even though you theoretically could. In case of a ground fault, without the bond fault current will go through the PE and the ground rod, through the literal earth soil back to the transformer. This creates small currents which aren't enough to trip a common 10A / 16A breaker; a RCD is therefore used to break the circuit in case of a ground fault. If you connect a low-impedance bond between neutral and earth, the fault current will go down the PE conductor until it reaches your electrical panel and then use the now-"PEN" conductor all the way back to the transformer as its return path instead of the earth's soil. If your installation is TT, there's almost always a reason why it's TT: Because the pseudo-"PEN" conductor you just created is too small in diameter to handle the fault current of a fully-fledged ground fault. In the worst-case, the momentary fault-current overloads the N conductor so much it causes a fire to happen. Don't fancy your chances.

Another old installation type, not commonly used today anymore, is TN-C. You get a 2-wire conductor to the receptacle and the neutral is tied to the ground prongs at the receptacle. This installation type does not have a ground rod, and there is also no way to bond the "ground" to neutral in the panel, because there won't be a ground to bond to. This installation requires bonding of "ground" and neutral at the receptacle.

There's more installation types like IT or TN-S, but that's usually not used at residential or apartment buildings, so it's unlikely you'll have one of these.

The only installation types where you would expect a ground to neutral bond are TN-C-S or the American split-phase power systems. If you're on one of these, it might not be a bad idea to check for that bond to be present and installed correctly, but if you happen to not find it in your panel, don't automatically assume something's wrong and it needs to be added. Especially if you're in Europe, there's a good chance it's not required and your installation code even prohibits the use of one.

You can check for the grounding system yourself if you know what you're looking at or give your power company a call. They'll always be able to tell you what grounding system you have.

Considering I've personally played on computers connected to TT, TN-C and even on entirely ungrounded systems altogether, all of them without problems of input lag and the like, I'd like to ask how that might be possible. What's the explanation for millions of players playing on either TT or TN-C systems (lacking the neutral to ground bond by design) without problems? I'm not questioning your findings, I'd just like to understand more. Thanks!

kimchi man wrote: ↑

25 Feb 2026, 00:09

To summarize your argument in my own way, it seemed to me that the key point was that all PC components should be in contact with the case so that no potential difference occurs between the components.

amorou wrote: ↑

20 Feb 2026, 17:22

Neutral to ground bond must have low impedance , obviously ground there must have low impedance too.

amorou wrote: ↑

20 Feb 2026, 17:22

High frequency fields in neutral wont drain to earth , due to neutral ground bond is high resistance or absent . Also if you try to do bonding somewhere else other than panel vs , you will create a loop and make it worse.

kimchi man wrote: ↑

25 Feb 2026, 00:09

What I would like to ask is that since there has not been much activity from you after presenting this theory, I was wondering whether you have any additional information or new thoughts on the matter.

ChristophSmaul1337 wrote: ↑

25 Feb 2026, 11:17

kimchi man wrote: ↑

25 Feb 2026, 00:09

To summarize your argument in my own way, it seemed to me that the key point was that all PC components should be in contact with the case so that no potential difference occurs between the components.

Uhm, maybe you're quoting the wrong guy, but I didn't try to start an argument and that's also not at all what I was trying to say. The reason I made the quoted posting is because of electrical safety and not wanting people to hurt themselves or their property. The thread owner stated in his initial topic:

amorou wrote: ↑

20 Feb 2026, 17:22

Neutral to ground bond must have low impedance , obviously ground there must have low impedance too.

and

amorou wrote: ↑

20 Feb 2026, 17:22

High frequency fields in neutral wont drain to earth , due to neutral ground bond is high resistance or absent . Also if you try to do bonding somewhere else other than panel vs , you will create a loop and make it worse.

which both suggest that every electrical installation needs a bond between neutral and earth (ground), which is wrong. My reply was only meant to stop people from aimlessly going to their electrical panel and installing bonds between neutral and ground, which, depending on the installation, could be prohibited and/or dangerous. Sure, if this forum was US/Canada only, you could argue every installation needs a neutral-ground bond since split-phase systems are commonly used over there. However, this forum is international and, at the very least, most countries in the EU use different systems like TT, which prohibit the use of this neutral-ground bond. Usually, in the vast majority of cases, when this bond between neutral and ground is missing, it's missing for a reason. Most likely because the earthing system doesn't require this bond, e.g. TT. And if one's really skeptical, it's always best to call an electrician and have it checked out. Any competent electrician will look at your panel and instantly know which earthing type is used and if it's installed correctly.

Also, I've said that I've played on computers connected to an outlet without any grounding, because the entire house was on a 2-wire system without any grounding. Computers work there like you expect and without showing the usual problems. That's all I'm going to add to that and that's what my question at the end was about.

kimchi man wrote: ↑

25 Feb 2026, 00:09

What I would like to ask is that since there has not been much activity from you after presenting this theory, I was wondering whether you have any additional information or new thoughts on the matter.

Since no moderation action was taken against someone who blatantly insinuated I was lying while all I did was give my genuine observations and trying to help others, I've stopped posting and giving my opinions on stuff and I will continue to do so. This clarification however I felt was necessary to stop danger and potential harm.

Your findings may be of interest to some people in here but I've since not partaken in conversations about any more theories or findings and I won't do so because of this "community" of "people" in here that can't and won't behave like normal human beings and nothing being done about it. You can thank mainly 2 fellow forum "users" for that.

Good luck finding a solution for yourself.

ChristophSmaul1337 wrote: ↑

25 Feb 2026, 11:17

kimchi man wrote: ↑

25 Feb 2026, 00:09

To summarize your argument in my own way, it seemed to me that the key point was that all PC components should be in contact with the case so that no potential difference occurs between the components.

Uhm, maybe you're quoting the wrong guy, but I didn't try to start an argument and that's also not at all what I was trying to say. The reason I made the quoted posting is because of electrical safety and not wanting people to hurt themselves or their property. The thread owner stated in his initial topic:

amorou wrote: ↑

20 Feb 2026, 17:22

Neutral to ground bond must have low impedance , obviously ground there must have low impedance too.

and

amorou wrote: ↑

20 Feb 2026, 17:22

High frequency fields in neutral wont drain to earth , due to neutral ground bond is high resistance or absent . Also if you try to do bonding somewhere else other than panel vs , you will create a loop and make it worse.

which both suggest that every electrical installation needs a bond between neutral and earth (ground), which is wrong. My reply was only meant to stop people from aimlessly going to their electrical panel and installing bonds between neutral and ground, which, depending on the installation, could be prohibited and/or dangerous. Sure, if this forum was US/Canada only, you could argue every installation needs a neutral-ground bond since split-phase systems are commonly used over there. However, this forum is international and, at the very least, most countries in the EU use different systems like TT, which prohibit the use of this neutral-ground bond. Usually, in the vast majority of cases, when this bond between neutral and ground is missing, it's missing for a reason. Most likely because the earthing system doesn't require this bond, e.g. TT. And if one's really skeptical, it's always best to call an electrician and have it checked out. Any competent electrician will look at your panel and instantly know which earthing type is used and if it's installed correctly.

Also, I've said that I've played on computers connected to an outlet without any grounding, because the entire house was on a 2-wire system without any grounding. Computers work there like you expect and without showing the usual problems. That's all I'm going to add to that and that's what my question at the end was about.

kimchi man wrote: ↑

25 Feb 2026, 00:09

What I would like to ask is that since there has not been much activity from you after presenting this theory, I was wondering whether you have any additional information or new thoughts on the matter.

Since no moderation action was taken against someone who blatantly insinuated I was lying while all I did was give my genuine observations and trying to help others, I've stopped posting and giving my opinions on stuff and I will continue to do so. This clarification however I felt was necessary to stop danger and potential harm.

Your findings may be of interest to some people in here but I've since not partaken in conversations about any more theories or findings and I won't do so because of this "community" of "people" in here that can't and won't behave like normal human beings and nothing being done about it. You can thank mainly 2 fellow forum "users" for that.

Good luck finding a solution for yourself.

MK92 wrote: ↑

27 Feb 2026, 09:25

If you have noisy or floaty neutrals and high impendance, you can "tweak" your windows with 1000 bullshit regedit, cmd, bios, nvidia and whatever useless placebo settings, and it won't get better by not even 1%.

And us with electricity problems don't have "input lag", we have OUTPUT lag, the delay is between the gpu and monitor on the outer signal, not between mouse inputs and mobo/cpu.

Hyote wrote: ↑

27 Feb 2026, 08:50

I am still succesfully input lag free with Windows tweaks but whatever, keep going. I won't deny that electricity plays a role but I always repeat myself when I mention that 90% of this can be mitigated with an insanely tweaked out system.

amorou wrote: ↑

27 Feb 2026, 14:03

Hyote wrote: ↑

27 Feb 2026, 08:50

I am still succesfully input lag free with Windows tweaks but whatever, keep going. I won't deny that electricity plays a role but I always repeat myself when I mention that 90% of this can be mitigated with an insanely tweaked out system.

I had a chance to test same systems at a lot of different places , and everywhere is different , some places only have %10 of this problem some 90 some 0 vs.
So you might not succed that on some places

amorou wrote: ↑

20 Feb 2026, 17:22

Please don’t move this thread to the EMI section. The root cause of most people’s input lag discussed here is this issue, and the EMI section gets very little visibility


Edit
Do not take action before reading 2nd post written by ChristophSmaul1337 , I was refering to system earthing type in my country +some eu countries only . I didnt checked other countries.
Still problem is the same solution will vary depending on earthing system your distrubtor uses , and you cant consume/use those hf , or you cant store it , it gotta go to earth or you gotta block via xformer




High frequency fields in neutral wont drain to earth , due to neutral ground bond is high resistance or absent . Also if you try to do bonding somewhere else other than panel vs , you will create a loop and make it worse.


What happens

Neutral carries high-frequency switching noise from other loads
This noise appears as common-mode voltage between line ,neutral and earth
PSU does not see a perfectly stable input reference anymore
Input emi filter capacitors couple this noise into the PSU primary
Some of that energy passes through parasitic capacitance of the transformer
Small high-frequency currents reach the secondary side
DC rails gain wideband ripple and phase noise


Why this creates lag / micro-jitter

Cpu gpu ram and chipset depend on stable clock timing obviously.
Clock generators use PLLs referenced to supply rails
Supply noise => phase noise => clock edge timing variation
Timing variation changes when operations complete
Frame delivery intervals become inconsistent
Input sampling intervals become inconsistent

We get , uneven frametime spacing , micro-stutter without FPS drop , inconsistent input response , unstable motion smoothness



How to fix it

Neutral to ground bond must have low impedance , obviously ground there must have low impedance too.

or

Isolation transformer with low interwinding capacitiy , but this is hard to do and some xformers sold as low cap are not low cap or they got leakage at core vs. , but emi approving labs vs must use them so you can ask them where they buy it and ask them to make one for you. First solution is easier but they will produce same result ( actually xformer will be better but neglibile kinda)