Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


How Do I Check My Power Supply Is At Fault?

  • Please log in to reply
3 replies to this topic

#1 teddyman5


  • Members
  • 1 posts
  • Local time:07:29 PM

Posted 19 January 2007 - 09:33 AM

I have a problem with my computer ( I'm using my daughters at present - only while she's at school ) in that there is no power.It was like that this morning so I checked everything and found the fuse gone in the plug.All other things OK, surge protector not tripped etc.So I changed the fuse, plugged in and there was a loud pop with a faint smell.I would suspect the power supply may have blown but I don't really know.So - any advice on what to do next, what and how to check?
The supply is a Switching Power KY-500 ATX P4 400W whatever all that means.Any help would be very greatfully received - thanks in advance.

BC AdBot (Login to Remove)


#2 usasma


    Still visually handicapped (avatar is memory developed by my Dad

  • BSOD Kernel Dump Expert
  • 25,091 posts
  • Gender:Male
  • Location:Southeastern CT, USA
  • Local time:08:29 PM

Posted 20 January 2007 - 11:11 PM

Try cracking open the case and sniffing around to see where the smell comes from. You can also try a cheap PSU tester (they're about $10 online)
My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

#3 Guest_uhaligani_*


  • Guests

Posted 21 January 2007 - 02:09 AM

Also try unplugging all the devices inside the cabinet and switiching on again. If that works, the you will have to try pluging everything back in one by one. Leave the motherboard until last - thats the most expensive component. Check also that you do not have any "dangling" fan connections, such as on the CPU, which may be touching something.

#4 dc3


    Bleeping Treehugger

  • Members
  • 30,810 posts
  • Gender:Male
  • Location:Sierra Foothills of Northern Ca.

Posted 21 January 2007 - 02:45 AM

I take it you didn't like the answers you got from forums.computing.co.uk.

Where exactly is this fuse that you keep blowing?

One of the suggestions at the other site was to disconnect the 20/24 pin connector and place a jumper between the green wire and any black wire and then turn on the PSU. I would also add that you should unplug the PSU before you attempt this. If the fuse blows again after this you will know that you need to replace the PSU.

Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users