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Num and Caps lock keys on constantly

Discussion in 'Specific Hardware Issues' started by Emz, Apr 4, 2018.

  1. Emz

    Emz

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    When i turn on my laptop the Num and Caps lights come on solidly but the screen nor computer start up. The power on button is lit. This is happening nearly everytime i turn it on now and the only way to get it back is to hold power key down and try again.
     
  2. Tony D

    Tony D Super-Moderator Super Moderators

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    Hello and welcome Emz,

    That may be just bad RAM or it could be a system board.
    Remove everything external to the computer as a start. I'm talking keyboard, mouse, external drives, printers, etc. If this is a desktop, leave the monitor connected.

    Are you comfortable inside a computer? Also, please provide a bit more information.
    Is this a laptop or desktop?
    What is the make/model of the computer?
     
  3. Tony D

    Tony D Super-Moderator Super Moderators

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    Seth pointed out to me that this is a laptop. Sorry I missed that initially.
     
  4. Seth Anthony

    Seth Anthony Registered Members

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    As Tony mentioned, it could be the RAM, but try the following first if your laptop has a removable battery:

    - Remove the battery and unplug the power cord.
    - Hold the power button down for about 30 seconds.
    - Plug the power cord back in (leave the battery out for now), and see if it turns on.
     
    Tony D likes this.
  5. plodr

    plodr CHF Advisor CHF Advisers

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    Please post the brand and model of laptop. None of our laptops have lights for num lock and caps locks.
    I want to try and find a manual. I had a problem with a desktop computer, years ago, where something was on and it should not have been. This prevented something from working. It was so long ago that I can't remember but I do know that I had to boot into the BIOS and change something.
     
  6. Seth Anthony

    Seth Anthony Registered Members

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    Many laptops have a caps lock and/or num lock LED.
     
  7. plodr

    plodr CHF Advisor CHF Advisers

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  8. Seth Anthony

    Seth Anthony Registered Members

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    Regardless, the OP's laptop does.
     
  9. Emz

    Emz

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    Sorry i haven't been unable to respond until now. It's a Toshiba Satellite P50-C-18J .
    Seth thanks, i have tried that method but still no difference.
    Haven't got a problem with taking computers apart if anyone knows of something else that would solve this, thanks.
     
  10. Seth Anthony

    Seth Anthony Registered Members

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    The method I posted may take a few times to work. If that still doesn't help, then as Tony posted, try one stick of ram at a time.

    If all that fails, then it seems your keyboard or motherboard is shorting out.
     
  11. Emz

    Emz

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    Will give it a try, thanks for the help!
     
  12. plodr

    plodr CHF Advisor CHF Advisers

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    How do you know that the computer is not starting up if you have no display? The power button is lit and Windows could be loading but you have no display to tell if it stops at the login screen (if you have one).

    I downloaded the manual from here
    Code:
    http://www.mytoshiba.com.au/file/download/resource/file/28625/sc50%20sl50%20sp50.pdf
    but it wasn't too helpful.

    I also looked through an online manual for your model here
    https://www.manualslib.com/products/Toshiba-P50-C-3932355.html
     
  13. Emz

    Emz

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    Thank you Plodr, you usually hear the system booting up when the computer comes on but that isn't happening. The screen is blank, Power, Num and Caps lock lights are on but nothing else?
     
  14. plodr

    plodr CHF Advisor CHF Advisers

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    okay, my netbooks are so quiet that I don't hear Windows booting up. I thought perhaps yours was the same.
     
  15. Rustys

    Rustys Super-Moderator Super Moderators

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    With some Laptops that I have seen when the lights come on like that and there is no flash pattern can some times indicated hardware failure.

    Have you tried a different power supply the one you have may be starting to fail.
     
  16. Emz

    Emz

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    Thanks Rustys, no i haven't tried that, its only just over a year old and this started a few months into having the laptop! Sent it back for repair 3 times but they couldn't even find the fault, although i do think they were useless in all ways!
     
  17. Tony D

    Tony D Super-Moderator Super Moderators

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    It's been back to Toshiba and they haven't found the problem? Well, it definitely has a problem now.

    Did you do what was suggested in posts #2 and #4? If you did, and it's still having issues, it's the system board.
     
    Rustys and allheart55 (Cindy E) like this.
  18. Emz

    Emz

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    Yes did the both of them. It was with Knowhow (Currys) not Toshiba as it was under warranty. Don't have much faith in them though! Thanks.
     

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