Acer Aspire V Nitro VN7-791G loud coil whine on battery power

jerkbait
jerkbait Member Posts: 1 New User

When I unplug my Acer Aspire V Nitro VN7-791G and look at a HD movie or start a low demanding 3D game there is a loud coil whine from the cpu or gpu. It's very annoying.

 

When I plug in the power, the coil whine almost disappears completely.

 

Edit: Typos Smiley Embarassed

Answers

  • philetus
    philetus ACE Posts: 4,759 Pathfinder

    Try copying the movie to the HDD and run it without the DVD and see if it still makes noise.I have a hard time believing you would get a whining noise from the CPU/GPU and would suspect the DVD player or the HDD.

  • unifex
    unifex Member Posts: 3 New User

    Hi, I have the same issue, so I decided to reply here instead of starting a new thread.

     

    I've got a brand new VN7-791G. I bought it without Windows since I have a Windows 7 license and I'm not at all interested in Windows 8. I have installed my Windows 7 and it's working just fine, with one exception - when operating on battery power the machine makes this annoying, high-frequency whining noise. The noise comes from the upper right corner of the laptop, close to the power jack. Once the power cord is plugged in, the noise disappears.

     

    I thought that the noise was related to Acer software that I installed - ePower something and so on. Indeed, this model was designed for Windows 8 and any software that is availabel for this model does not work with Windows 7. I downloaded Acer software for TravelMate models, which of course has the same name and purpose. All of it (launch manager, etc) works just fine. The Launch manager is important since otherwise the blue functional keys are not working properly. I thought that ePower would be useful as well. Now I have uninstalled it but the noise is still there. The only other thing that I installed from Acer website is some sort of a patch (updates to the Windows power plan ..), this I don't know how to uninstall.

     

    I have actually returned the first unit due to this noise, but now the second unit behaves exactly the same. I would be grateful for any idea.