DELL 130W AC Adapter (DP7KJ5 / HA130PM160) makes noise

I recorded the sound of the DELL AC Adapter that make a very high pitched noise (3000 Hz) each time it is plugged to the computer.
The sound is audible in a quiet place, but for this video I have to approach the adapter to the computer microphone (located at the webcam), record this hisss sound with Audacity and play it again.
The computer is a DELL LATITUDE 5401.
The AC adapter is maybe 3 years old. Reference, as indicated on the sticker : HA130PM160 ; DP/N 0P7KJ5.

[@dnewasiam]

Great video. Keep going on YT

[@b3kCat]

Sounds like a coil “whine” which is typical with older DC power supplies. This is usually an indicator that it’s either faulty or at end of life.

[@jaymore9179]

Yes maybe, but the adapter is not so old (maybe 3 years), and I have an other adapter from Dell aged 10y (but 65W) without this problem. I thought Dell adapter were made of good quality, but maybe not this model. For sure I ll have to replace it soon.

[@robingossman3385]

I have same problem with same with same model adapter, is it safe to continue using?

[@jaymore9179]

Probably yes. Mine is running 4h a day since 3 months with this noise (I hide it in the drawyer so noise is not so loud), and it still working.

[@robingossman3385]

Thanks for the reply @@jaymore9179 i got a lot of anxiety plugging it in and hearing that. I pulled it out immediately as it is powering my dell d6000 dock which all my drives and monitors are connected to, I thought it was shorting. I will attempt to use it until I source a new charger.