HP w2448hc high pitch sound solution

Hi People,

I gotta admit that i almost give up with this annoting problem of mine however i manage to find the source and fix it. After upgrade my motherboard, cpu and RAM trio there is a annoying high pitch sound from my computers Creative speakers. First i thought it is related with my Creative Sound card and tried so hard to change drivers and stuff and yet no solution :( Then i swap my sound card with built-in Realtek sound card and that moment i realized this isn't related with sound card itself cause that high pitch noise came back.

I thought it caused by bad electricity connections or bad grounding. Grounding was alright even though i changed power cables and sort out cable mess to see if there is any interference between cables and stuff.

Last week i realize something very weird, the high pitch sound occurs only my HP w2448hc is on. Finally i narrowed down the root of my problem to monitor itself. I unplugged my speaker and wait for hours to see if it occurs again and it occurred :)

This is it, my monitor is the source of that awful sound that drives me crazy. But how is that happened? as far as i know monitor doesn't have and speakers, it might be a bad component or something then search for my monitor model and realize my monitor has built in speaker and it uses HDMI cable :)

Ok, here is the solution, just hit the menu button on  your monito and go management, in management manu there is a volume menu, just adjust volume level to 0 and also select source as PC analog, and your problem will disappear forever.

I hope you find it useful.

Cheers