VidCard's 'Electrical' Whine When Gaming

Omega59er

Honorable
Jan 20, 2014
2
0
10,510
Recently installed a Sapphire R9 270x 4GB and card is giving a whining noise when gaming. More demanding the game = louder the whine.
I've been putting up with the whining for a couple days now, doing little things that I came up with that might reduce the noise to no avail. I'm new to cards that require two 6-pin PCIE cables to work, so I'm not entirely sure if this one requires it or not. One thing is for certain, though; I do not get a picture when one of them is unplugged, and the whining is much louder.
I wondered if it was the fans but then I noticed something funny about the whine compared to the games that I play.
On a lower end graphical game like The Lord of The Rings Online, it's just a hum or at least as low as the noise gets. (On desktop there is no noise) In WarThunder, however, the noise is actually controllable. When I look straight and do not move the camera, the whine is the same as LOTRO's, but as I move the camera it immediately gets louder. (I can put a rhythm to the whining by controlling how often and fast I move the camera around my plane!) This has brought me to the conclusion that it's not the fans, as I'm pretty sure the fans don't adjust their speed up and down depending on my camera use/immediate pull of the card.
This brought me to my Power Supply Unit after observing the PCIE cables having a dramatic effect on the whine and lack of picture. After research, I found out that my power supply is HORRIBLE for gaming. Only providing 20-25 amps on +12v lines when the card recommends 500-600watts overall.

Needless to say, I have a new power supply on the way that will have ample overhead room. However, my question to the community is this: Do you think the problem was entirely PSU related, or could it be the card itself? What if, horrible as it is, I get the new PSU in and the whine has persisted?! Shall I attempt to RMA the card? What's next?

Respectively - Omega
 
Solution
If the PSU was/is that weak it may be causing the problem, which is probably caused by the graphic cards own built in voltage regulators struggling to keep their output within tolerance.
It may also be the card, this type of noise 'coil whine' isn't harmful to the card, it's caused by the natural vibrations of the parts either falling or rising into the frequencies where human hearing can detect it. This happens due to small manufacturing variations.
If the replacement PSU doe not cure the problem your only option is to return the card under warranty.
If the PSU was/is that weak it may be causing the problem, which is probably caused by the graphic cards own built in voltage regulators struggling to keep their output within tolerance.
It may also be the card, this type of noise 'coil whine' isn't harmful to the card, it's caused by the natural vibrations of the parts either falling or rising into the frequencies where human hearing can detect it. This happens due to small manufacturing variations.
If the replacement PSU doe not cure the problem your only option is to return the card under warranty.
 
Solution

Omega59er

Honorable
Jan 20, 2014
2
0
10,510


I was aware of something called 'coil whine,' but I did not fully understand what it was. Thank you for explaining this in an understandable way. If it's truly benign, then I believe that I'll be able to put up with the noise, tune it out, or cover it up with my headset.
I'm really hoping that the problem is PSU related, to be honest.

*EDIT UPDATE* I hooked up a much more powerful PSU and the noise has persisted. I'm verging on replacement, but I may fight with sapphire or newegg a little over the specific model. I consider this solved. Thank you, coozie.