I have Dell 280 Optiplex PC. Due to voltage fluctuation my PC shut down. When I started it again it started well but when windows opened it restarted and it kept on restarting after few minutes. I thought it was a power supply issue but when I looked my motherboard three capacitors were busted. I replaced these capacitors. The PC ran fine but my sata hardisk started to make ticking noise at startup so I restated it again so it didn't make sound again.
I mean when I starts PC hardisk makes noise and when I restart it again it runs. The hardisk does this every time. Also after windows opens...