Problem with audio issues following PSU upgrade on Corsair RM750e
Problem with audio issues following PSU upgrade on Corsair RM750e
Updated my graphics card from the previous model to a newer one, along with the power supply unit, to ensure compatibility with future upgrades. The current configuration is available here: https://de.pcpartpicker.com/list/FTFvYN. After the change, I noticed significant audio issues—interference in the audio jacks, crackling and beeping sounds when plugging in headphones. The front panel jack in the case was particularly problematic, with loud pops even after moving the cables out of the way. Audio through HDMI and Bluetooth worked fine, but the motherboard’s audio connector sat just a few inches above the PSU, with no better option. A PCIe Wi-Fi/Bluetooth adapter was present but not new. Reverting to the old GPU and PSU resolved the problem completely. When I swapped in the new 4070 GPU and 750W PSU, the interference returned. The tech support suspected a faulty PSU and replaced it, but the issue persisted. I tried DIY fixes like using tinfoil shielding on the PSU cover, but nothing worked. Any suggestions? Are there reports of similar problems with this model or its components? Is this generally linked to poor quality or just excessive heat from higher wattage?
The PSU model you're considering is reasonably priced but comes with a short 7-year warranty. It features a loud fan and includes an XPG core reactor rated at 850W, along with a 10-month warranty. Priced around 103€, it offers better performance compared to similar RME options.
I've tested the 750e in several recent builds without any problems. It seems the issue might be related to the motherboard and the new PSU. The audio from the front panel works fine even when the newer PSUs are connected (the board also handles that). Try disconnecting the HD audio cable from the motherboard and testing the same devices through the board's audio jack. That might help identify the problem. I suspect the higher wattage power supply could be affecting power delivery or a faulty capacitor, possibly due to age or wear. A different PSU model may resolve the issue. Consider swapping with another unit to check if the problem persists.
This option isn't specifically suggested, nor does it belong to me. However, a similar one is included in my Plantronics BlackWire headset and functions well. https://www.amazon.com/Adapter-External-...B0946KB3XR
Thanks to everyone for your input! I paid close attention to the PSU and noticed some noticeable coil whine. I don’t remember if the previous model had it as much; the fan was noticeably louder. You might be right, @Somerandomtechyboi—it could be a bit problematic. Swapping it out for a better quality unit would be ideal but also quite pricey. I’ll definitely check with the store; their support seems solid and they might offer discounts. I’m planning to replace the board soon as well, hoping that fixes the problem. If I recall correctly, @SpookyCitrus will know—I’ll let you know. Unplugging the HD audio on the front panel really helped improve the rear connection. Using this PC for just occasional audio files or background music in a noisy place should work fine (though I have low expectations). Still, the persistent noise wasn’t great for a smooth listening experience. The USB to audio adapter appears to be the simplest and most affordable short-term fix. Thanks for the suggestion @UnusualDevices! No foil around the sides or top helped much. I also tried a different power outlet just in case there was an overall grounding issue, but I haven’t tested whether either socket is properly grounded.
It's strange to say the same problem persists with the same power supply unit. Upgrading to the Corsair didn't fix the issue, and I'm unsure if a USB workaround is effective. Could there be another method you've tried?
Currently relying on Bluetooth is the setup. The USB microphone functions perfectly, so a USB headphone or adapter should also work. I haven’t purchased one yet. A tech staff member mentioned the ground connection between the motherboard and case might be faulty—sometimes a varnished case can cause this. Perhaps I’ll remove any varnish around connectors before swapping the motherboard if I remember. They also pointed out that power supply and graphics card compatibility could be the problem, noting some models clash. A Seasonic PSU was recommended, but I’m unsure how much of that is solid advice or just a sales pitch. Finally, I got a USB adapter without much concern for quality compared to other brands. It seems to perform well so far, with no strange distortion. Maybe the sound has a subtle twang, making some frequencies linger longer than usual. Alternatively, the previous headphones might be amplifying highs too much, cutting off quieter details. The difference is barely perceptible, and I personally enjoy that slight warmth. It could affect mastering audio files, but I’d likely tweak the setup for better audio quality anyway. Hope you found a solution @lastnightsgrime Edit2: Eventually upgraded the motherboard (and other components) as well—front jack audio is now working again! It looks like a stronger PSU paired with outdated capacitors was the issue, as suggested by @SpookyCitrus. Thanks! Edited September 20, 2024 by HerrNothing Solution found after months, but didn’t want to bring up the whole thread