Computer turns on for a second or two, then turns off

Hi:

Wondering if you can tell me what's going on with my computer? When I first turn it on in the morning, it goes on for a second or two, then shuts off. When I try again a second and/or third time, it starts up normally. Do I have a short or something? A time or two, I got a black screen with some "suggestions" -- one was to start Windows normally -- I clicked on that and everything started up normally.

I am not a hands-on repair person, so if it looks like I have to take apart my computer, I will call Geek Squad!
5 answers Last reply
More about computer turns turns
  1. Is it an Asus P5Q board? If so, let it "turn off" and wait about 5 seconds to turn back on.

    If not, are you detaching the power cable after shutting dwon at night?
  2. it seems like you have a capacitor which is taking time to charge up.

    this could be on the powersupply or the motherboard. - the power supply is the easiest to change and the cheapest.
  3. could also be a part overheating:

    open up the case of the computer and dust it off.

    Also check to see if fan is running properly and also power supply might have problems.

    Good luck
  4. dextermat said:
    could also be a part overheating:

    open up the case of the computer and dust it off.

    Also check to see if fan is running properly and also power supply might have problems.

    Good luck


    I don't know how it can overheat in 1 or 2 seconds. He said he waits a few seconds, tries again and it works. My Asus P5Q SE mobo does what his does with the on/off/on again all by itself, but only after I change the BIOS settings or after I leave it unplugged overnight.
  5. dextermat said:
    could also be a part overheating:

    open up the case of the computer and dust it off.

    Also check to see if fan is running properly and also power supply might have problems.

    Good luck



    it would not be over heating


    it would run for longer than 1-2 seconds before shutting down.


    but it could be a fan issue sticking which stops the pc from getting hot as a fan failure circuit should work.
Ask a new question

Read More

CPUs Computer