Ever since I built my gaming computer, my HP monitor which has speakers in it makes a ringing sound. What is weird about it is that when my CPU is occupied for a second or two (Like opening Google Chrome), it stops and when it is done processing that it starts back up. It also stops when I lay my mouse over certain things or put a drop down list. It's a very high pitch sound that everyone I ask says they don't hear anything. However, I can hear it like one of those old chunky TVs that make a high pitch sound on start up. It's very distinct to me and it's annoying. I know it is my speakers making the sound because whenever I unplug them they stop making the sound. Any possibility? Motherboard malfunction? My speakers on plugged into the green port on the back of my computer. Thanks!