Windows 8 and 8.1 Forums


No Post and No power LED

  1. #1


    Posts : 87
    Win 10 Enterprise X64

    No Post and No power LED


    so In many years in pc experience I noticed in my case I would know the day that my pc wont post
    The normal post I look at the power LED on and H.D.D LED begins to blink as PC is starting
    when they are suddenly off in the next restart I surely know that the PC wont post
    IS there a link between the power led and Post ability
    I am know at this case sometimes they turn on sometimes they dont
    Trying to reset CMOS until they are on again after 10 times clearing
    What is wrong?
    Thanks

      My System SpecsSystem Spec

  2. #2


    No, there's no real relation between the two, except that the power LED means that the system is powered up and will begin the POST process. In your case I'd say it sounds like your motherboard has bad caps. It's a common symptom where a computer may take multiple tries to boot and will stall somewhere during the POST sequence, but run perfectly fine when it does boot normally.

    Unless you're extraordinarily skilled with a soldering iron, there's no way to fix this except to replace the motherboard, assuming it is indeed bad caps. A less likely, but still possible, explanation would be a failing power supply.
      My System SpecsSystem Spec

  3. #3


    Posts : 87
    Win 10 Enterprise X64


    Quote Originally Posted by asvent View Post
    No, there's no real relation between the two, except that the power LED means that the system is powered up and will begin the POST process. In your case I'd say it sounds like your motherboard has bad caps. It's a common symptom where a computer may take multiple tries to boot and will stall somewhere during the POST sequence, but run perfectly fine when it does boot normally.

    Unless you're extraordinarily skilled with a soldering iron, there's no way to fix this except to replace the motherboard, assuming it is indeed bad caps. A less likely, but still possible, explanation would be a failing power supply.
    but why it dont give any beep code
    tip: this case before was the cpu failing long time ago
      My System SpecsSystem Spec

  4. #4


    Quote Originally Posted by asvent View Post
    No, there's no real relation between the two, except that the power LED means that the system is powered up and will begin the POST process. In your case I'd say it sounds like your motherboard has bad caps. It's a common symptom where a computer may take multiple tries to boot and will stall somewhere during the POST sequence, but run perfectly fine when it does boot normally.

    Unless you're extraordinarily skilled with a soldering iron, there's no way to fix this except to replace the motherboard, assuming it is indeed bad caps. A less likely, but still possible, explanation would be a failing power supply.
    I would lean toward the Power supply You probably want a bigger one for your next build anyway and it might solve your current problem
      My System SpecsSystem Spec

  5. #5


    Posts : 87
    Win 10 Enterprise X64


    Quote Originally Posted by Clintlgm View Post
    Quote Originally Posted by asvent View Post
    No, there's no real relation between the two, except that the power LED means that the system is powered up and will begin the POST process. In your case I'd say it sounds like your motherboard has bad caps. It's a common symptom where a computer may take multiple tries to boot and will stall somewhere during the POST sequence, but run perfectly fine when it does boot normally.

    Unless you're extraordinarily skilled with a soldering iron, there's no way to fix this except to replace the motherboard, assuming it is indeed bad caps. A less likely, but still possible, explanation would be a failing power supply.
    I would lean toward the Power supply You probably want a bigger one for your next build anyway and it might solve your current problem
    Thanks for reply tried another one
    the same thing
    tip: the PC fans states changed to spin for 2 sec and then shuts off then on again in a loop
      My System SpecsSystem Spec

  6. #6


    Quote Originally Posted by Gamer11 View Post
    but why it dont give any beep code
    tip: this case before was the cpu failing long time ago
    That's completely normal for bad capacitors.
      My System SpecsSystem Spec

  7. #7


    Posts : 87
    Win 10 Enterprise X64


    Quote Originally Posted by asvent View Post
    Quote Originally Posted by Gamer11 View Post
    but why it dont give any beep code
    tip: this case before was the cpu failing long time ago
    That's completely normal for bad capacitors.
    is this normal for this condition
    what about the case of the cpu ago I changed it and the PC posted again??
    I want to make sure its 100% the capacitors caused this
    the PC fans states changed to spin for 2 sec and then shuts off then on again in a loop
    thanks
      My System SpecsSystem Spec

  8. #8


    You'll never know for sure until you swap out some component unless you can visually see bulging and/or leaking capacitors on the motherboard, but it being bad capacitors fits the symptoms much better than a bad CPU. Unless when you swapped the CPU it started posting 100% of the time for an extended period of time, it was nothing more than a coincidence.
      My System SpecsSystem Spec

  9. #9


    Quote Originally Posted by Gamer11 View Post
    Quote Originally Posted by Clintlgm View Post
    Quote Originally Posted by asvent View Post
    No, there's no real relation between the two, except that the power LED means that the system is powered up and will begin the POST process. In your case I'd say it sounds like your motherboard has bad caps. It's a common symptom where a computer may take multiple tries to boot and will stall somewhere during the POST sequence, but run perfectly fine when it does boot normally.

    Unless you're extraordinarily skilled with a soldering iron, there's no way to fix this except to replace the motherboard, assuming it is indeed bad caps. A less likely, but still possible, explanation would be a failing power supply.
    I would lean toward the Power supply You probably want a bigger one for your next build anyway and it might solve your current problem
    Thanks for reply tried another one
    the same thing
    tip: the PC fans states changed to spin for 2 sec and then shuts off then on again in a loop
    I have run into loop problem like that few times an it turned out that start button was getting stuck in ON position. It's aesy to check for that by disconnecting it from MB and using a screwdriver to shorten the contacts instead. One second is enough.
      My System SpecsSystem Spec

  10. #10


    Posts : 87
    Win 10 Enterprise X64


    Quote Originally Posted by asvent View Post
    You'll never know for sure until you swap out some component unless you can visually see bulging and/or leaking capacitors on the motherboard, but it being bad capacitors fits the symptoms much better than a bad CPU. Unless when you swapped the CPU it started posting 100% of the time for an extended period of time, it was nothing more than a coincidence.
    I checked all caps but I didnt see anyone leaking but I am not sure maybe a cap I dont see
    My cpu worked in another board so its caps to my board
    Thanks for all your help
    the PC Now is normal fan spinning but No post
    It sometimes start then stop then start again
    onetime it stated and Posted and after Windows 10 logo looped again
      My System SpecsSystem Spec

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No Post and No power LED
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