Longstanding Floaty Aim Feel Issue Fixed with a Fiber Optic DisplayPort Cable...

[amorou]

Good afternoon, everyone, I'm from Russla, I use a translator. Yesterday I came across this post and was very interested in this story, today I bought an hdmi optic cable and at the moment I'm going home and I'm going to test it. I'll write my impressions later.

Bear in mind

https://www.youtube.com/watch?v=v0e88-tWgbI

[kyube]

I tried basically everything and it seemed to even carry across different PC builds and even monitors (OLD build was a i7-8600K, 1080TI, 16GB 4133mhz RAM, CURRENT build is i9-13900KS, 4090, 32GB 7600mhz RAM). Older monitor was a 240hz ASUS PG258Q, current monitor is a 540hz ASUS PG248QP.

Funny how it's always with users with unstable RAM settings that complain about “floaty mouse”
Your optimisation attempts should be aimed at your system HW choices, SW optimisations (BIOS & OS), then peripherals.
How many stress testing utilities for the CPU, RAM or GPU have you ran, what were their names and the testing scenarios and what was their individual runtime?
Until you've troubleshooted this, all other endeavours are moot.

The hybrid-optical cable you've purchase is still a potential source of conducted interference and doesn't provide galvanic isolation as you think it does, hope you know this.
You can easily verify this by using a FM/AM/SW/LW/MW radio with a decent amplifier to listen to the interference.
That is also how the “EMF tester” tools work.

But I have had excellent results having my entire PC setup running on a Medical Grade Isolation Transformer and implementing Quest VR fiber optic USB-C cables where ever possible.

This cable is also a hybrid-optical cable which has copper inside of it, thus doesn't provide complete galvanic isolation.

[dervu]

I wonder about those people mentioning that unstable RAM would cause floaty mouse. I saw topics not only on this forum where user had every possible RAM test pass and somehow only disabling XMP helped.
How would someone approach such thing if you have to rely only on your feelings if its ok or not to tell if RAM is stable or not?

[kyube]

I saw topics not only on this forum where user had every possible RAM test pass and somehow only disabling XMP helped.
How would someone approach such thing if you have to rely only on your feelings if its ok or not to tell if RAM is stable or not?

The runtime is what matters. Simply mentioning that a user “passes” a test is vague & misleading.
Not only that, a OS can get corrupted over time from forcing any HW component to error out with these stress tests, hence why either a separate testing OS or a bootable OS is mandatory.

The general approach is:
1.) Run RAM stress test (RamTestPro - purple icon, MemTestPro 7.0, ycruncher VT3 (can add different ones), TM5 with different configs) for AT MINIMUM 16 hours.
Afterwards, you can try running RAM stress test + GPU stress test (Furmark, Unigine)
Even EXPO & XMP are unstable on some kits, if they're selected inappropriately.
The easiest approach is running EXPO/XMP disabled, but the performance regression might be unappealing to some.
The other easiest approach is to choose kits which are in the QVL of their respective motherboard support page.

2.) Testing CPU overclock
Linpack Extreme, bootable & in OS if Intel
Prime95 if Intel/AMD
FCLK on AMD can be unstable (some CPUs can't do past 2000MHz), needs verification with P95, OCCT VRAM (look for WHEAs in HWInfo or Event Viewer) and/or RTP (with appropriate CFG)

I've written about this a few times in these subforums here, you can go through my post history.

[amorou]

I tried basically everything and it seemed to even carry across different PC builds and even monitors (OLD build was a i7-8600K, 1080TI, 16GB 4133mhz RAM, CURRENT build is i9-13900KS, 4090, 32GB 7600mhz RAM). Older monitor was a 240hz ASUS PG258Q, current monitor is a 540hz ASUS PG248QP.

Funny how it's always with users with unstable RAM settings that complain about “floaty mouse”
Your optimisation attempts should be aimed at your system HW choices, SW optimisations (BIOS & OS), then peripherals.
How many stress testing utilities for the CPU, RAM or GPU have you ran, what were their names and the testing scenarios and what was their individual runtime?
Until you've troubleshooted this, all other endeavours are moot.

The hybrid-optical cable you've purchase is still a potential source of conducted interference and doesn't provide galvanic isolation as you think it does, hope you know this.
You can easily verify this by using a FM/AM/SW/LW/MW radio with a decent amplifier to listen to the interference.
That is also how the “EMF tester” tools work.

But I have had excellent results having my entire PC setup running on a Medical Grade Isolation Transformer and implementing Quest VR fiber optic USB-C cables where ever possible.

This cable is also a hybrid-optical cable which has copper inside of it, thus doesn't provide complete galvanic isolation.

Video (most bandwidth heavy) signals use fiber , rest is not important they re audio vs

And where did you get idea of he got unstable ram settings

[Vocaleyes]

If there was a sufficient test to diagnose, it would have been found by now.

Alternatively, suggestion on what to run aside from the usual tired dead ends?

[kyube]

Video (most bandwidth heavy) signals use fiber , rest is not important they re audio vs

And where did you get idea of he got unstable ram settings

The rest is in fact important... lol
If his assumption was that the DisplayPort cable was a EMI source, then he doesn't eliminate it fully with these hybrid-optical fiber cables. He only dampens the effect, but there's still copper in those cables.
If his assumption was that the DisplayPort cable allows for conducted interference to enter his display, then it's not eliminated with these hybrid-optical fiber cables.

Anything past 3200 1T (3600MHz 2T) on Skylake gen (6th–11th) Intel CPUs is (very likely) unstable.
Anything past 6000-6400MHz 1T on Alder-Lake gen (12–14th) Intel CPUs is (very likely) unstable.

These are rough numerical values which have been obtained from running various stress tests for extended periods.

To skip testing all of this testing, opt for QVL of mobo vendor (and hope they've done a good job testing the kits) or run EXPO/XMP disabled. Very simple setup.

[amorou]

Video (most bandwidth heavy) signals use fiber , rest is not important they re audio vs

And where did you get idea of he got unstable ram settings

The rest is in fact important... lol
If his assumption was that the DisplayPort cable was a EMI source, then he doesn't eliminate it fully with these hybrid-optical fiber cables. He only dampens the effect, but there's still copper in those cables.
If his assumption was that the DisplayPort cable allows for conducted interference to enter his display, then it's not eliminated with these hybrid-optical fiber cables.

Anything past 3200–3600MHz 1T on Skylake gen Intel CPUs is unstable.
Anything past 6000-6600MHz 1T on Alder-Lake gen Intel CPUs is unstable.

These are numerical values which have been obtained from running various stress tests for extended periods.

To skip testing all of this testing, opt for QVL of mobo vendor (and hope they've done a good job testing the kits) or run EXPO/XMP disabled. Very simple setup.

1080p 144hz transmit like 9 gbps
Audio linger around with mbs

Topic here external interference effecting video , its not about stuff getting into mobo/monitor from cables , cuz minus 1 meter of cable means too less when it comes to that since if shielded cooper cable not good enough then mobos ports , jacks , case , monitors shileding vs not good enough either

I didnt see he mentioned 1T , did he ?

[kyube]

1080p 144hz transmit like 9 gbps
Audio linger around with mbs

Topic here external interference effecting video , its not about stuff getting into mobo/monitor from cables , cuz minus 1 meter of cable means too less when it comes to that since if shielded cooper cable not good enough then mobos ports , jacks , case , monitors shileding vs not good enough either

You seem to be very certain of your claims.
Considering the OP has not mentioned any testing data which would confirm your assumptions, I don't see how my claims are invalid possibilities.

As it stands, it could be either radiated interference from other devices, conducted interference through cabling or the environment or a mix of many other EMI sources in his environment which the OP is not aware of.

However, I still stand by my statement that he very likely has a HW issue in his system (RAM and perhaps CPU too), not his peripherals.

I didnt see he mentioned 1T , did he ?

That's my point, anything that isn't 1T is irrelevant to chase.
What's good on random benchmarks (for extreme overclockers chasing numbers) is not good for chasing consistent total system latency without macrostuttering & microstuttering.
Less is more.

[amorou]

1080p 144hz transmit like 9 gbps
Audio linger around with mbs

Topic here external interference effecting video , its not about stuff getting into mobo/monitor from cables , cuz minus 1 meter of cable means too less when it comes to that since if shielded cooper cable not good enough then mobos ports , jacks , case , monitors shileding vs not good enough either

You seem to be very certain of your claims.
Considering the OP has not mentioned any testing data which would confirm your assumptions, I don't see how my claims are invalid possibilities.

As it stands, it could be either radiated interference from other devices, conducted interference through cabling or the environment or a mix of many other EMI sources in his environment which the OP is not aware of.

However, I still stand by my statement that he very likely has a HW issue in his system (RAM and perhaps CPU too), not his peripherals.

I didnt see he mentioned 1T , did he ?

That's my point, anything that isn't 1T is irrelevant to chase.
What's good on random benchmarks (for extreme overclockers chasing numbers) is not good for chasing consistent total system latency without macrostuttering & microstuttering.
Less is more.

Your claims are not invalid possibilities , its just another subject

If OPs lag source is video signals suffering interference , hybird fiber hdmi will solve it , end of story.
If lag continues (which seems not so far) then coppers inside that cable can act as antenna yes, so as mobo itself / case / ports vs list goes on.
How much graphic cards circut will fiter that interference vs how much cpu pins, ram layoutwill pickup that interference is another topic.

When I said "rest is not important" these were in same category with that "rest".

Also , 1T vs 2T wont gonna make system stutter or make anyone here complain like this