Hi everyone. I've had my GL703VD for a few years now. I only recently have started to notice a noise coming from the transformer portion of my laptop charger; it's quiet and infrequent enough that I can't tell whether or not this noise has always been there and I simply didn't notice it.
When the device is fully charged and either asleep or not drawing much power (e.g., I'm just using the browser), but the charger is left in, then a high-pitched sound can be heard coming from the transformer. It's quiet enough that I only notice it if my ear is within a few feet of the box, but it still seems unusual. The "melody" of the sound varies. Sometimes, it's random and mosquito-like, as in this recording
that I made (I tried to edit out the noise as much as I could, but still, I apologize for the quality of the recording). Other times, it's more rhythmic, almost like a squeaky old seesaw at a playground (or the sounds at the beginning of this song
). If I unplug the charger when these sounds are occurring, the sounds will briefly increase in volume/intensity before ceasing. When the laptop is not fully-charged, or it's running something power-intensive, then all that I hear is a very slight buzz, and even then, only if my ear is much closer to the charger.
What I have read online, such as this similar post from a decade ago
, leads me to believe this might be expected behaviour. On the other hand, such descriptions do not perfectly match what I am observing. Additionally, when I phoned a local tech shop about the problem, they advised that it was concerning and I should bring my device in and have it looked at, but did not seem interested in an exact description of the sound like the one I gave above. Since I am using this device for my work, I'm not in a great position to bring my device/charger in right away. Is it urgent to get this looked at? Or is this completely normal?