This assumes some basic PC knowledge such as what the cards do, what you can remove and how the PC will react.
They symptom matches what happens with a case short (what is, is on the web but you as a PC tech would know this or a beginning their first repair google more) or a failing or overloaded PSU. If you are not familiar with PC parts then maybe it's time to get a repair estimate or what another PC costs.
Hello everyone, recently my computer has basically just stopped working. Basically, when I turn it on the fan connected to the processor fluctuates, and the fans connected to the graphics card do not turn on. Also, when I turn it on, it beeps about every second. It does not turn on and I have no clue what is wrong with it.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic