Looking for People to Test a Possible Fix or atleast find a starting point — Controlled Experiment

[Kyousuke]

So I actually tried this... back in 2023, with Cinebench and Furmark running in the background while I gaming. Even before I knew about this forum, and you know what, just like you said, it actually improved my input lag. Although I gave this idea up because some reason, maybe because it doesn't fix the root cause and it caused lagging too much. After that I did many other tweaks relate to CPU's and GPU's power in bios but none really fixed. Nevertheless, My problem was 100% caused by electricity, because after I used battery instead of connecting to grid, input lag 100% gone for 5 minutes until my battery ran out of power. Now I noticed every time I unplugged my usb from MB desync gone for a few minutes, tried this multiples time, suddenly I can hit the enemy and kill them first. Anyways, I hope you could figure something out of your experiments, I tried every tweaks possible and changed the house but it still remains.

[MontyTheAverage]

Anyone else tried this?

[f1ndus]

What I have done :

• Replaced hardware components one by one, including motherboard, RAM, PSU, and SSD.

• Tested different GPUs.

• Reinstalled and tested multiple operating systems (Windows,Linux).

• Tested multiple BIOS versions and configurations.

• Tested multiple GPU drivers and system settings.

• Moved houses and tested different network environments.

• Tested multiple ISPs and internet connections.

• Fixed electrical grounding and wiring issues.

• Checked for EMI and electrical interference issues.

• Replaced problematic wall sockets and tested different power outlets.

• Added a UPS and investigated power quality.

• Replaced and reconfigured routers and equipments.

• Performed multiple clean OS installations and complete PC rebuilds.

• Ran extensive hardware, memory, GPU, network, and latency diagnostics.

• Tested numerous BIOS, RAM timing, voltage, GPU tuning, and Windows latency configurations.

Important observations:

• The issue sometimes disappears temporarily after CMOS resets, RAM reseating, hardware rebuilds, or certain BIOS configurations.

• Performance often starts smooth after a reset or rebuild, then progressively deteriorates.

• Some GPU-load and frame-timing workarounds temporarily helped but eventually stopped working.

• The problem has persisted across multiple hardware, OS, ISP, and house configurations.

I've listed everything I've tried so far so people have a clear picture of the troubleshooting I've already done. I don't want anyone to assume I haven't tested different possibilities or experimented with potential solutions. I've spent a lot of time investigating this issue across hardware, software, networking, and electrical systems. I'm sharing the list to avoid confusion, prevent repeated suggestions, and help focus on possibilities that haven't been explored yet.

we are on the same wave, i did the same what you, there is nothing left what i didnt tested yet and problem still persist

[spkii]

Looking for People to Test a Controlled Experiment — Maybe this Could be starting point to investigate what's actually happening?

I've been trying to find a fix for these issues for around 6 years, doing all kinds of troubleshooting and controlled experiments.

I recently came across something unusual that seems to reduce desync in my experience. I'm not claiming this is a fix, and I don't know why it might work. I want to see if other people can reproduce it and whether it could lead to further investigation.

What I'm doing

Before launching the game, I open OCCT → Stability test → Combined, enable VRAM and 3D Adaptive, set both intensities to around custom→40%, and start the test (continuously running it in the bg). I also run Intel PresentMon in the background with its overlay enabled. Make sure Intel PresentMon is set to the 'GPU Focus' preset. PresenMon make a bigger impact than simply running OCCT alone imo.

I've tried this in Valorant and Overwatch. The effect isn't 100% consistent, and the required intensity varies depending on the game and its settings. Valorant sometimes needs 50–60%. In Overwatch, low graphics settings might require around 60%, while high settings might need only 40% : Depends on the hardware load ig.

The idea is to find a load level where the FPS starts taking a noticeable hit and then check whether the desync-related symptoms change.

Things I've noticed (What needs to be met for this to work)

- GPU utilisation: Needs to stay around 99% consistently.
- PresentMon graph: GPU Busy and frame-time/presentation traces appear to line up closely, almost like a single line.
- FPS metrics: The 1% low FPS under the Presents metric is significantly lower than the average Presents FPS.
- Trade-off: FPS takes a hit, and frame pacing can become uneven, with occasional spikes.

The symptoms I'm referring to are things like dying behind walls, taking damage after reaching cover, inconsistent hit registration, and similar desync-related behaviour. I'm not claiming this improves input lag, smoothness, or frame pacing.

This might sound somewhat similar to the iron box experiment people have discussed. I'm wondering whether introducing a particular system load changes something related to power behaviour, CPU/GPU scheduling, or frame delivery. This is just speculation, though.

Would anyone be willing to test this with me?

I'd like to compare the game running normally against the game running with OCCT and PresentMon, keeping other settings as consistent as possible.

If you participate, please share your CPU, GPU, OCCT settings, GPU utilisation, PresentMon graphs, and whether you notice any difference in the desync-related symptoms.

I know this isn't an ideal solution, especially with the FPS loss. The goal isn't to claim we've found a fix, but to establish whether this behaviour is reproducible across different systems and whether it gives us a starting point to investigate the underlying cause.

My PC :
CPU: AMD Ryzen 7 5800X
Motherboard: MSI MAG B550 TOMAHAWK (MS-7C91)
GPU: NVIDIA GeForce RTX 3060 Ti
RAM: 32 GB (2 × 16 GB) BIWIN Predator Pallas DDR4
SSD: Acer Predator GM7000 1 TB NVMe
PSU: DeepCool PN850M 850 W 80 PLUS Gold
CPU Cooler: DeepCool GAMMAXX L240 240 mm AIO
Cabinet: ANT ESPORTS 690MT AIR
Monitor: BenQ MOBIUZ EX2510S — 1080p, 165 Hz
Operating System: Windows 11 (Build 26100)

Did you tried playing with PS5 or XBOX? I have same synthoms with it, same with computer like you described.