I AM A HERO! My coworker came into my office, worried that his hard drive was quite possibly dying. I walk into his office and his office-mate asks me, "Please do something because the noise is killing me too." I go near the noisy computer, locate where the noise is coming from (the power-supply unit in the back) and hit it once with my flat palm, thump! Instantly, the buzzing stops. The fan on the PSU was out of alignment and now fixed, re-aligned. The Computer Guy has saved the day, once again!
If only my current project, setting up an ERP system, was this easy.