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GPU clock speed related to PSU coil whine/buzzing

post #1 of 3
Thread Starter 
First off the PSU in question is a Corsair TX 650. The graphics cards tested were a EVGA GTX 580 reference design and a Gigabyte G1 Gaming GTX 970.

I recently upgraded to a GTX 970 and soon after noticed what sounded like coil whine. At first I thought it was coming from the graphics card and had a friend listen for a second opinion. He said the graphics card sounded quite and that maybe it was a fan/something vibrating.

Today I was trying to find the source of the buzzing sound. When I had my ear next to the PSU the sound became much louder, and it was clear the PSU was it's origin.

After discovering this I swapped out the 970 for the 580 and ran some benchmarks and noticed that it was indeed doing the same thing just much quieter, and over the loud fan on the 580 I just hadn't noticed it before. With the 970 re-installed I decided to under clock it and after doing so the buzzing sound was much quieter and barely audible.

So my question is, should I be concerned? Is this normal? I'm about 1 3/4 years into the 5 year warranty, should I RMA?
post #2 of 3
Some video cards can cause coil whine in one frequency but if you change the card to another model the frequency can very well change, the coil whine have been there all along it was just in a frequency you could not hear.
Thats pretty normal unless it annoys you there is no reason to RMA it
Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
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LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
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AudioAudioAudioAudio
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x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
post #3 of 3
Thread Starter 
Thanks for the reply. The sound isn't really a problem unless I'm doing something 3d intensive and even then with the fans and speakers/headphones going I don't hear it.

I'll leave it for now and RMA if it seems to get worse over time or if I start having power issues.

Thanks again for your input.
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