Computer wont start, no fan, no lights, no display BUT with long Buzz Sound

Dzmbr

Honorable
Jan 24, 2014
6
0
10,510
Before this happen, when i turn on my pc, it will create a long buzz noise. It will boot a 5-15 minute later. And when its ok im able to play computer games.

After a certain hour the computer power off automatically, Off cpu, no fan, no lights and no display
But when i try to power on the cpu, it works.

But several times happened, that the pc shuts down, My fan is working, so i decided to open the case and Its too dusty.

I decided to clean it and resets the RAM (did several times because pc now wont start)

After doing so the pc now WONT Boot, still no fan, no lights no display and with long buzz sound. After the buzz sound, still pc wont power on.

What seems to be the problem and what can be the solutions???

Thanks
 

Stelio

Honorable
Jan 24, 2014
4
0
10,510
If its a buzzing sound from the power supply the fan probably stopped working (had a similar situation not long ago, had to replace the PSU and now everything works fine), if its a beeping sound could you please describe it?