![Neutral :|](./images/smilies/icon_neutral.gif)
Btw the only fan in my PC except the PSU and CPU/GPU fan is me - im a pc fan
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
I imagine running PWM fans off motherboard four pin connectors would bring the same issue + additional overhead from your system having to monitor and pulse power on and off in duty cycles. If you're paranoid about your computer having weird issues, you should probably not be using any four pin fans connected to the motherboard in the first place.
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I don’t really see this as an EMI subject, more like an electrical engineering 101 subject where the fan motors spinning creates noise which then bleeds back up the cable into the PSU. If this problem cannot be solved by things like ferrite beads or in-line capacitors (I actually don’t like these on PCIE cables) to filter out this noise being fed into the PSU due to their operation, then I guess it becomes an electrical engineering 102 problem. I imagine the problem is solvable but the solution raises the fan price 50% so it’s just not done.Chief Blur Buster wrote: ↑16 Jan 2024, 01:28Fans are a known very legit interference source (interaction with power supply, voltage dips, sounds in speakers, or EMI/sparkgap radiation causing ECC-derived lags).
However, the more appropriate forum for electrical issues is Rare/Electrical Issues Affecting Latency — Interference, EMI, EMF.
So I have moved this thread there.
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Could you share the details of the stripped AMD driver pretty plzr0ach wrote: ↑15 Jan 2024, 21:44The fan issue is kind of a complex subject. On my setup it feels like each additional fan brings an additive effect to creating heavier cursor movement (and maybe some types of fans are worse than others - no idea yet). If someone prefers heavier cursor movement for aim they might not see this as a problem. I could see people removing four fans from their PSU and noticing mouse movement feels 1/10th as heavy and actually playing worse.
Some people hit the lottery on their builds and it just winds up ideal for their aim with the random parts they bought. For other people, you have to add or remove components if something is causing a problem. For my current setup, I run 7800xt with modded/stripped AMD drivers installed via driver only mode. Mouse movement is more sensitive than any Nvidia drivers released in the last several years. With the combination of removing all the fans + the stripped AMD drivers, I play better at 1440p because it's actually overly quick/sensitive at 1080p.
So as you can see, depending on your preference for heavier or light cursor movement and each person's hardware variables, issues like this are going to range from no problem to enormous problem for some people. Having four fans plugged in feels overly heavy for me with any combination of variables, though.