1 Nickel

Dell 7567: Random stuttering/sound buzzing while playing videos, games, etc. (if charger is plugged in)

I get random buzzing noise with micro freezing when im playing videos or playing games if the charger is plugged in.
I did run diagnostics from SupportAssist but found no problem? I've only experienced buzzing noise whenever i suddenly connect my charger when im playing videos or gaming but now i think it gone worse.. 
I have all the latest drivers from dell and also updated the bios but still suddenly this problem appeared out of nowhere. Any help would be appreciated!

windows 10 creators update
i5 cpu
8gb ram
gtx 1050
1tb hdd