Dexter_prog
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- Joined
- Mar 24, 2020
- Messages
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I noticed a ground loop between my PC and my DAC. It's pretty much exactly the same described in this video (skip to 11:28). It also responds to locking fps and changes pitch accordingly.
This has been reported extensively across various forums. I'll just link to one nvidia thread, but I also saw it for AMD cards: {{MetaTags.og.title}}
I bought an IFI idefender, but not only did it not break the loop, but it also introduced a new hissing sound, so it's a no-go for me. I tried disconnecting everything except the PC, the DAC and the amp, and the ground loop persists. It even happens with the DAC disconnected from the current. Connecting the DAC to a laptop (and using the laptop's battery) doesn't produce the ground hum, so the DAC is not defective.
The only thing that breaks the loop is lifting the ground from either the PC or the power conditioner where all my audio stuff is connected to (I did try other extension cords with same results). I did try different power sockets in the room, same result.
Other than permanently lifting the ground from my audio gear, do you guys have any other suggestions?
Setup:
- PC: i5 8600k + asus z370-a prime + nvidia EVGA 1070 + 2x8 gb ddr3000
- Audio setup:
-- Audiowalle TP1000 power conditioner (AKA fancy power extension cord)
-- Vincent sv237-mk
-- DAC: SMSL m500
-- KEF R300
This has been reported extensively across various forums. I'll just link to one nvidia thread, but I also saw it for AMD cards: {{MetaTags.og.title}}
I bought an IFI idefender, but not only did it not break the loop, but it also introduced a new hissing sound, so it's a no-go for me. I tried disconnecting everything except the PC, the DAC and the amp, and the ground loop persists. It even happens with the DAC disconnected from the current. Connecting the DAC to a laptop (and using the laptop's battery) doesn't produce the ground hum, so the DAC is not defective.
The only thing that breaks the loop is lifting the ground from either the PC or the power conditioner where all my audio stuff is connected to (I did try other extension cords with same results). I did try different power sockets in the room, same result.
Other than permanently lifting the ground from my audio gear, do you guys have any other suggestions?
Setup:
- PC: i5 8600k + asus z370-a prime + nvidia EVGA 1070 + 2x8 gb ddr3000
- Audio setup:
-- Audiowalle TP1000 power conditioner (AKA fancy power extension cord)
-- Vincent sv237-mk
-- DAC: SMSL m500
-- KEF R300