My laptop's built in speakers have been emitting a high pitched static sound whenever a sound is supposed to be made normally through the speakers. The speakers on the laptop are malfunctioning.
Here is the complete Surface Laptop 2 Fan Noise Problem Fix or solution. View 4 Replies View Related Apple :: High Pitched Noise Coming From The Laptop Jan 18, 2009. If it’s still under warranty, you might be able to get a free replacement because of the excessive noise, but most manufacturers will not cover a replacement when the problem is just a high-pitched sound. After a restart the computer speakers emit a high pitched noise that is very hard to deal with. One night I come home, and I hear a consistent noise coming from my speakers, which are built into my monitor.
Fortunately, the steps above still resolve the issue.High pitch noise coming from microphone.
I installed version A06 and STILL the high-pitched noise was emitted by the laptop. I haven’t tried it yet, but it’s possible that this Bios update will help! Since writing this post, Dell has come out with an updated version of the Latitude 820 Bios (version A06). Once you’ve done this, the noise will stop! Select the “Power Management” tab, and uncheck the “Allow the computer to turn off this device to save power” checkbox. To resolve this, go to your Device Manager, right-click “Dell Wireless 350 Bluetooth Module” (at least, that’s what it’s called on my machine), and select properties. As a result, the Bluetooth device turns off, and this evidently allows the processor to move into a C3 state, thus causing the high-pitched noise. Turns out, it’s because a power saving checkbox was enabled. Having read the article, I noticed that my Bluetooth device shuts down shortly after my machine boots up. But, this article led me on the correct path to solving the problem. Personally, I find it quite humorous that Dell blames the problem on Piezoelectricity, and even goes so far as to link to Wikipedia for more information.
But, it turns out that it’s actually a known issue. I’ve been trying to explain to people how the high-pitched noise emitting from my Dell Latitude D820 (which is a great computer) has been driving me crazy! Indeed, after complaining about this noise, most people actually think I have GONE crazy.
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