Please help with my speakers!!

[Robbie_21]

I recently bought the Creative A250 stereo system (left, right, sub woofer) for my PC which work great on my phone but when I use them on my PC they make a massive frequency/horn type noise when I turn the volume up. please help me sort this out, it would be greatly appreciated

 

[sidfrgaming]

On which port did u connect
3 pole stereo jack?
Make sure you connect it on the right port