1

Two days ago, I was working on my PC and I saved my files and shut down the system properly and went out for an hour or more. When I came back and tried to turn on my PC, the blue power light of my PC along with DVD-RW flashed for a second and then turn off again. And this went into a loop. The PC didn't boot up. PC was not connected to a CVT, voltage stablizer or UPS. "Neighbours told me that there was a high voltage fluctuation for a second due to which their TV, Bulbs and other electrical equipment failed."

I opened up cabinet of PC to see that what exactly issue is. Here are my troubleshooting steps:- 1. I took out the CMOS battery to reset CMOS settings and then inserted the battery again and tried to start PC. But problem remained same.

I saw that my CPU fan wasn't working so I took it out and tried to connect it on other PC. but it worked.

I tested if PSU fan is working or not and found that PSU fan is also working properly.

Now I am not able to figure out that what exactly the issue is. Even now the PC is going in same loop when I start it up.

Please Help!!!

Improve this question

1 Answer 1

Reset to default
0

Typically your PSU takes the brunt of something like that. Swap out your PSU. I'd guess some specific rail failed, or some internal component, its trying to power up and failing.

The PSU fan 'working' dosen't mean very much. Try a known good PSU first. With a modern PC as long as there's power you should get some sort of error indication.

Improve this answer
1
  • Thanks a lot..... Its fixed after I changed my PSU. Its working perfectly fine now.
    – Saurabh Arya
    Nov 6, 2015 at 7:09

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .