Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I just tried to start my PC but it didn't. No lights and no fans running. Then I pressed once more the start button and something blew - I guess the power supply but I'm not sure.

Any ideas of what can be the problem? Thanks in advance!

share|improve this question
up vote 1 down vote accepted

You can test the power supply by "jump starting" it. I recommend to unplug all internal components (mainboard, HDD, CD/DVD, ...) before trying that. If the power supply fan(s) start spinning, it is likely that it still works and the fault might be with your mainboard or another component.

share|improve this answer
    
No, the fan is not spinning. Which means 100% that the PSU is gone? – lam3r4370 Feb 4 '13 at 16:23
    
I would say 90%, fairly certain but unless you also test the voltages, you can't tell 100%. A new PSU is cheap and should give you 100% clarity ;) – Stefan Seidel Feb 4 '13 at 22:49
    
Also no lights and noise with a new PSU – lam3r4370 Feb 5 '13 at 17:32

Just plug your power cable out and wait for 5 minutes and try again. If it does not work again, check all the cables attached to your computer. If still not, i would suggest that you will bring your computer to a Computer repair technician.

share|improve this answer
    
It's not working – lam3r4370 Feb 4 '13 at 11:47
    
No lights at all? Check the inside cables also maybe the power cable just pop out from the motherboard – xmux Feb 4 '13 at 11:51
    
Nothing. All inside cables are OK. – lam3r4370 Feb 4 '13 at 12:02

You must log in to answer this question.

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