Dell OptiPlex GX150 SF PC Desktop "turn web camera monitor" Questions

TURN ON A blinking Yellow power light means a dead power supply. Whats with all the overly complicated answers. Every Dell I've ever worked on that had that problem was the power supply and I've fixed

...turn off the computer and continue to Step 2. If the computer does not have the same problem, continue using these steps. If the computer is able to open Windows after the media and devices were ...