PC fans spin up then stop, and nothing appears on the screen?











up vote
0
down vote

favorite
1












I've run into an issue with an old PC that was working fine before.



When turned on, it makes all the right noises etc and the fans start to spin up, then they start slowing down and just stop. Nothing appears on the screen, it just says "No signal".



I'm 99% sure it's something to do with the graphics card - I had tried adjusting it to make sure it was sitting right and then it suddenly booted fine, but then started turning off again after I rebooted. Makes me think the rest of the PC is fine cause that was the only thing I'd touched. I can't really tell if there's a problem with the contacts on the card or the PCI-E slot or something though.



If I unplug the DVI from the card the screen wakes up and changes to "Cable not connected", so I guess it is still detecting the card. When I boot the PC the GPU fan doesn't spin, but when I hold the power button for 5 seconds to kill it, it briefly spins right as everything turns off.



I can't even get into BIOS or anything because the screen doesn't come on.



Motherboard is an HP M2N68-LA, GPU is a AriesATX-21-M04 (both came with the PC, it's an HP prebuild).










share|improve this question
























  • A can of electrolube can work wonders if you have no other start-point for diagnosis. It's cheaper than a new GPU.
    – Tetsujin
    Aug 11 '17 at 15:39






  • 1




    if your Fans are all shutting down, then your issue is probably either with your power supply or your motherboard. your GPU is likely one of your more power hungry components, so it may be related, but if your CPU fan stops spinning, its because the system has powered itself off, likely due to insufficient power.
    – Frank Thomas
    Aug 11 '17 at 15:43










  • It still stays on after the fans spin down, the lights stay on and I can hear the HDD and PSU. I guess I'll try removing extra power hungry components and see if that saves it.
    – carkul
    Aug 11 '17 at 15:52










  • I'd unseat and reseat everything including the RAM with the power disconnected. You might even hold down on the power button of the tower (if applicable) once the electrical is unplugged just to discharge any residual voltage—might as well take out the CMOS battery for a few seconds and put it back in while you're reseating all other components from the motherboard. Be sure to check the MOBO for blown or swollen capacitors, charred marks from heat damage, etc. too as something obvious there means you may be chasing ghosts.
    – Pimp Juice IT
    Aug 13 '17 at 2:09

















up vote
0
down vote

favorite
1












I've run into an issue with an old PC that was working fine before.



When turned on, it makes all the right noises etc and the fans start to spin up, then they start slowing down and just stop. Nothing appears on the screen, it just says "No signal".



I'm 99% sure it's something to do with the graphics card - I had tried adjusting it to make sure it was sitting right and then it suddenly booted fine, but then started turning off again after I rebooted. Makes me think the rest of the PC is fine cause that was the only thing I'd touched. I can't really tell if there's a problem with the contacts on the card or the PCI-E slot or something though.



If I unplug the DVI from the card the screen wakes up and changes to "Cable not connected", so I guess it is still detecting the card. When I boot the PC the GPU fan doesn't spin, but when I hold the power button for 5 seconds to kill it, it briefly spins right as everything turns off.



I can't even get into BIOS or anything because the screen doesn't come on.



Motherboard is an HP M2N68-LA, GPU is a AriesATX-21-M04 (both came with the PC, it's an HP prebuild).










share|improve this question
























  • A can of electrolube can work wonders if you have no other start-point for diagnosis. It's cheaper than a new GPU.
    – Tetsujin
    Aug 11 '17 at 15:39






  • 1




    if your Fans are all shutting down, then your issue is probably either with your power supply or your motherboard. your GPU is likely one of your more power hungry components, so it may be related, but if your CPU fan stops spinning, its because the system has powered itself off, likely due to insufficient power.
    – Frank Thomas
    Aug 11 '17 at 15:43










  • It still stays on after the fans spin down, the lights stay on and I can hear the HDD and PSU. I guess I'll try removing extra power hungry components and see if that saves it.
    – carkul
    Aug 11 '17 at 15:52










  • I'd unseat and reseat everything including the RAM with the power disconnected. You might even hold down on the power button of the tower (if applicable) once the electrical is unplugged just to discharge any residual voltage—might as well take out the CMOS battery for a few seconds and put it back in while you're reseating all other components from the motherboard. Be sure to check the MOBO for blown or swollen capacitors, charred marks from heat damage, etc. too as something obvious there means you may be chasing ghosts.
    – Pimp Juice IT
    Aug 13 '17 at 2:09















up vote
0
down vote

favorite
1









up vote
0
down vote

favorite
1






1





I've run into an issue with an old PC that was working fine before.



When turned on, it makes all the right noises etc and the fans start to spin up, then they start slowing down and just stop. Nothing appears on the screen, it just says "No signal".



I'm 99% sure it's something to do with the graphics card - I had tried adjusting it to make sure it was sitting right and then it suddenly booted fine, but then started turning off again after I rebooted. Makes me think the rest of the PC is fine cause that was the only thing I'd touched. I can't really tell if there's a problem with the contacts on the card or the PCI-E slot or something though.



If I unplug the DVI from the card the screen wakes up and changes to "Cable not connected", so I guess it is still detecting the card. When I boot the PC the GPU fan doesn't spin, but when I hold the power button for 5 seconds to kill it, it briefly spins right as everything turns off.



I can't even get into BIOS or anything because the screen doesn't come on.



Motherboard is an HP M2N68-LA, GPU is a AriesATX-21-M04 (both came with the PC, it's an HP prebuild).










share|improve this question















I've run into an issue with an old PC that was working fine before.



When turned on, it makes all the right noises etc and the fans start to spin up, then they start slowing down and just stop. Nothing appears on the screen, it just says "No signal".



I'm 99% sure it's something to do with the graphics card - I had tried adjusting it to make sure it was sitting right and then it suddenly booted fine, but then started turning off again after I rebooted. Makes me think the rest of the PC is fine cause that was the only thing I'd touched. I can't really tell if there's a problem with the contacts on the card or the PCI-E slot or something though.



If I unplug the DVI from the card the screen wakes up and changes to "Cable not connected", so I guess it is still detecting the card. When I boot the PC the GPU fan doesn't spin, but when I hold the power button for 5 seconds to kill it, it briefly spins right as everything turns off.



I can't even get into BIOS or anything because the screen doesn't come on.



Motherboard is an HP M2N68-LA, GPU is a AriesATX-21-M04 (both came with the PC, it's an HP prebuild).







boot graphics-card desktop-computer






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Aug 11 '17 at 19:08









Glorfindel

1,30841220




1,30841220










asked Aug 11 '17 at 15:32









carkul

111




111












  • A can of electrolube can work wonders if you have no other start-point for diagnosis. It's cheaper than a new GPU.
    – Tetsujin
    Aug 11 '17 at 15:39






  • 1




    if your Fans are all shutting down, then your issue is probably either with your power supply or your motherboard. your GPU is likely one of your more power hungry components, so it may be related, but if your CPU fan stops spinning, its because the system has powered itself off, likely due to insufficient power.
    – Frank Thomas
    Aug 11 '17 at 15:43










  • It still stays on after the fans spin down, the lights stay on and I can hear the HDD and PSU. I guess I'll try removing extra power hungry components and see if that saves it.
    – carkul
    Aug 11 '17 at 15:52










  • I'd unseat and reseat everything including the RAM with the power disconnected. You might even hold down on the power button of the tower (if applicable) once the electrical is unplugged just to discharge any residual voltage—might as well take out the CMOS battery for a few seconds and put it back in while you're reseating all other components from the motherboard. Be sure to check the MOBO for blown or swollen capacitors, charred marks from heat damage, etc. too as something obvious there means you may be chasing ghosts.
    – Pimp Juice IT
    Aug 13 '17 at 2:09




















  • A can of electrolube can work wonders if you have no other start-point for diagnosis. It's cheaper than a new GPU.
    – Tetsujin
    Aug 11 '17 at 15:39






  • 1




    if your Fans are all shutting down, then your issue is probably either with your power supply or your motherboard. your GPU is likely one of your more power hungry components, so it may be related, but if your CPU fan stops spinning, its because the system has powered itself off, likely due to insufficient power.
    – Frank Thomas
    Aug 11 '17 at 15:43










  • It still stays on after the fans spin down, the lights stay on and I can hear the HDD and PSU. I guess I'll try removing extra power hungry components and see if that saves it.
    – carkul
    Aug 11 '17 at 15:52










  • I'd unseat and reseat everything including the RAM with the power disconnected. You might even hold down on the power button of the tower (if applicable) once the electrical is unplugged just to discharge any residual voltage—might as well take out the CMOS battery for a few seconds and put it back in while you're reseating all other components from the motherboard. Be sure to check the MOBO for blown or swollen capacitors, charred marks from heat damage, etc. too as something obvious there means you may be chasing ghosts.
    – Pimp Juice IT
    Aug 13 '17 at 2:09


















A can of electrolube can work wonders if you have no other start-point for diagnosis. It's cheaper than a new GPU.
– Tetsujin
Aug 11 '17 at 15:39




A can of electrolube can work wonders if you have no other start-point for diagnosis. It's cheaper than a new GPU.
– Tetsujin
Aug 11 '17 at 15:39




1




1




if your Fans are all shutting down, then your issue is probably either with your power supply or your motherboard. your GPU is likely one of your more power hungry components, so it may be related, but if your CPU fan stops spinning, its because the system has powered itself off, likely due to insufficient power.
– Frank Thomas
Aug 11 '17 at 15:43




if your Fans are all shutting down, then your issue is probably either with your power supply or your motherboard. your GPU is likely one of your more power hungry components, so it may be related, but if your CPU fan stops spinning, its because the system has powered itself off, likely due to insufficient power.
– Frank Thomas
Aug 11 '17 at 15:43












It still stays on after the fans spin down, the lights stay on and I can hear the HDD and PSU. I guess I'll try removing extra power hungry components and see if that saves it.
– carkul
Aug 11 '17 at 15:52




It still stays on after the fans spin down, the lights stay on and I can hear the HDD and PSU. I guess I'll try removing extra power hungry components and see if that saves it.
– carkul
Aug 11 '17 at 15:52












I'd unseat and reseat everything including the RAM with the power disconnected. You might even hold down on the power button of the tower (if applicable) once the electrical is unplugged just to discharge any residual voltage—might as well take out the CMOS battery for a few seconds and put it back in while you're reseating all other components from the motherboard. Be sure to check the MOBO for blown or swollen capacitors, charred marks from heat damage, etc. too as something obvious there means you may be chasing ghosts.
– Pimp Juice IT
Aug 13 '17 at 2:09






I'd unseat and reseat everything including the RAM with the power disconnected. You might even hold down on the power button of the tower (if applicable) once the electrical is unplugged just to discharge any residual voltage—might as well take out the CMOS battery for a few seconds and put it back in while you're reseating all other components from the motherboard. Be sure to check the MOBO for blown or swollen capacitors, charred marks from heat damage, etc. too as something obvious there means you may be chasing ghosts.
– Pimp Juice IT
Aug 13 '17 at 2:09












1 Answer
1






active

oldest

votes

















up vote
0
down vote













This is a power problem of some kind. And it may involve the graphics card but the easiest things to check don't.



First, disconnect every USB and firewire device from your computer. Yes, including mice, keyboards, hubs, wireless adapters. If anything is plugged into a USB port unplug it from that port. This also means disconnecting any internal USB devices you might have connected to the motherboard headers (flash card readers, etc). Then disconnect power from the computer and walk away for 5 minutes or so. When you come back restore power but don't plug any of the usb devices in. Try to start the computer. If it works then one of your usb devices are shorted out.



If that doesn't work, remove power from the computer again and then disconnect all power connections from the PSU. Then remove all expansion cards and the memory modules (but not the CPU). Unplug all SATA connectors as well. Then carefully reconnect/install each removed component, taking your time, and being sure they are all seated completely in their slots/plugs. Then reconnect the PSU the same way. This will ensure none of your components are failing to make a clean connection to the mobo or the PSU. It will also eliminate the possibility of a component half-in-half-out of a slot shorting out multiple contacts in the slot.



Failing that, you're probably looking at a defective or incompatible component. If your motherboard has onboard video start by removing the GPU and trying to start the system without it. If that works it's either the GPU or the PSU doesn't have enough power to also run the GPU or the PSU's rail that provides power for the PCIe connectors is failing. It could literally be any component in the computer but the single most likely culprit with these symptoms is actually the PSU.



From there I would test components by temporarily replacing them in this order (order selected based on ease, likely availability of spare parts to test with, and the likelihood of it being the cause of the problem).




  • Optical/HDD/SSD drives (just disconnect them)

  • PSU

  • GPU (if you didn't have onboard to test with)

  • RAM

  • CPU

  • Motherboard (which likely means new RAM and CPU too since it's an old system)


Or take it to a technician.






share|improve this answer





















    Your Answer








    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "3"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1239988%2fpc-fans-spin-up-then-stop-and-nothing-appears-on-the-screen%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    0
    down vote













    This is a power problem of some kind. And it may involve the graphics card but the easiest things to check don't.



    First, disconnect every USB and firewire device from your computer. Yes, including mice, keyboards, hubs, wireless adapters. If anything is plugged into a USB port unplug it from that port. This also means disconnecting any internal USB devices you might have connected to the motherboard headers (flash card readers, etc). Then disconnect power from the computer and walk away for 5 minutes or so. When you come back restore power but don't plug any of the usb devices in. Try to start the computer. If it works then one of your usb devices are shorted out.



    If that doesn't work, remove power from the computer again and then disconnect all power connections from the PSU. Then remove all expansion cards and the memory modules (but not the CPU). Unplug all SATA connectors as well. Then carefully reconnect/install each removed component, taking your time, and being sure they are all seated completely in their slots/plugs. Then reconnect the PSU the same way. This will ensure none of your components are failing to make a clean connection to the mobo or the PSU. It will also eliminate the possibility of a component half-in-half-out of a slot shorting out multiple contacts in the slot.



    Failing that, you're probably looking at a defective or incompatible component. If your motherboard has onboard video start by removing the GPU and trying to start the system without it. If that works it's either the GPU or the PSU doesn't have enough power to also run the GPU or the PSU's rail that provides power for the PCIe connectors is failing. It could literally be any component in the computer but the single most likely culprit with these symptoms is actually the PSU.



    From there I would test components by temporarily replacing them in this order (order selected based on ease, likely availability of spare parts to test with, and the likelihood of it being the cause of the problem).




    • Optical/HDD/SSD drives (just disconnect them)

    • PSU

    • GPU (if you didn't have onboard to test with)

    • RAM

    • CPU

    • Motherboard (which likely means new RAM and CPU too since it's an old system)


    Or take it to a technician.






    share|improve this answer

























      up vote
      0
      down vote













      This is a power problem of some kind. And it may involve the graphics card but the easiest things to check don't.



      First, disconnect every USB and firewire device from your computer. Yes, including mice, keyboards, hubs, wireless adapters. If anything is plugged into a USB port unplug it from that port. This also means disconnecting any internal USB devices you might have connected to the motherboard headers (flash card readers, etc). Then disconnect power from the computer and walk away for 5 minutes or so. When you come back restore power but don't plug any of the usb devices in. Try to start the computer. If it works then one of your usb devices are shorted out.



      If that doesn't work, remove power from the computer again and then disconnect all power connections from the PSU. Then remove all expansion cards and the memory modules (but not the CPU). Unplug all SATA connectors as well. Then carefully reconnect/install each removed component, taking your time, and being sure they are all seated completely in their slots/plugs. Then reconnect the PSU the same way. This will ensure none of your components are failing to make a clean connection to the mobo or the PSU. It will also eliminate the possibility of a component half-in-half-out of a slot shorting out multiple contacts in the slot.



      Failing that, you're probably looking at a defective or incompatible component. If your motherboard has onboard video start by removing the GPU and trying to start the system without it. If that works it's either the GPU or the PSU doesn't have enough power to also run the GPU or the PSU's rail that provides power for the PCIe connectors is failing. It could literally be any component in the computer but the single most likely culprit with these symptoms is actually the PSU.



      From there I would test components by temporarily replacing them in this order (order selected based on ease, likely availability of spare parts to test with, and the likelihood of it being the cause of the problem).




      • Optical/HDD/SSD drives (just disconnect them)

      • PSU

      • GPU (if you didn't have onboard to test with)

      • RAM

      • CPU

      • Motherboard (which likely means new RAM and CPU too since it's an old system)


      Or take it to a technician.






      share|improve this answer























        up vote
        0
        down vote










        up vote
        0
        down vote









        This is a power problem of some kind. And it may involve the graphics card but the easiest things to check don't.



        First, disconnect every USB and firewire device from your computer. Yes, including mice, keyboards, hubs, wireless adapters. If anything is plugged into a USB port unplug it from that port. This also means disconnecting any internal USB devices you might have connected to the motherboard headers (flash card readers, etc). Then disconnect power from the computer and walk away for 5 minutes or so. When you come back restore power but don't plug any of the usb devices in. Try to start the computer. If it works then one of your usb devices are shorted out.



        If that doesn't work, remove power from the computer again and then disconnect all power connections from the PSU. Then remove all expansion cards and the memory modules (but not the CPU). Unplug all SATA connectors as well. Then carefully reconnect/install each removed component, taking your time, and being sure they are all seated completely in their slots/plugs. Then reconnect the PSU the same way. This will ensure none of your components are failing to make a clean connection to the mobo or the PSU. It will also eliminate the possibility of a component half-in-half-out of a slot shorting out multiple contacts in the slot.



        Failing that, you're probably looking at a defective or incompatible component. If your motherboard has onboard video start by removing the GPU and trying to start the system without it. If that works it's either the GPU or the PSU doesn't have enough power to also run the GPU or the PSU's rail that provides power for the PCIe connectors is failing. It could literally be any component in the computer but the single most likely culprit with these symptoms is actually the PSU.



        From there I would test components by temporarily replacing them in this order (order selected based on ease, likely availability of spare parts to test with, and the likelihood of it being the cause of the problem).




        • Optical/HDD/SSD drives (just disconnect them)

        • PSU

        • GPU (if you didn't have onboard to test with)

        • RAM

        • CPU

        • Motherboard (which likely means new RAM and CPU too since it's an old system)


        Or take it to a technician.






        share|improve this answer












        This is a power problem of some kind. And it may involve the graphics card but the easiest things to check don't.



        First, disconnect every USB and firewire device from your computer. Yes, including mice, keyboards, hubs, wireless adapters. If anything is plugged into a USB port unplug it from that port. This also means disconnecting any internal USB devices you might have connected to the motherboard headers (flash card readers, etc). Then disconnect power from the computer and walk away for 5 minutes or so. When you come back restore power but don't plug any of the usb devices in. Try to start the computer. If it works then one of your usb devices are shorted out.



        If that doesn't work, remove power from the computer again and then disconnect all power connections from the PSU. Then remove all expansion cards and the memory modules (but not the CPU). Unplug all SATA connectors as well. Then carefully reconnect/install each removed component, taking your time, and being sure they are all seated completely in their slots/plugs. Then reconnect the PSU the same way. This will ensure none of your components are failing to make a clean connection to the mobo or the PSU. It will also eliminate the possibility of a component half-in-half-out of a slot shorting out multiple contacts in the slot.



        Failing that, you're probably looking at a defective or incompatible component. If your motherboard has onboard video start by removing the GPU and trying to start the system without it. If that works it's either the GPU or the PSU doesn't have enough power to also run the GPU or the PSU's rail that provides power for the PCIe connectors is failing. It could literally be any component in the computer but the single most likely culprit with these symptoms is actually the PSU.



        From there I would test components by temporarily replacing them in this order (order selected based on ease, likely availability of spare parts to test with, and the likelihood of it being the cause of the problem).




        • Optical/HDD/SSD drives (just disconnect them)

        • PSU

        • GPU (if you didn't have onboard to test with)

        • RAM

        • CPU

        • Motherboard (which likely means new RAM and CPU too since it's an old system)


        Or take it to a technician.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Aug 11 '17 at 15:58









        Cliff Armstrong

        1,149112




        1,149112






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Super User!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.





            Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


            Please pay close attention to the following guidance:


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1239988%2fpc-fans-spin-up-then-stop-and-nothing-appears-on-the-screen%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            How do I know what Microsoft account the skydrive app is syncing to?

            When does type information flow backwards in C++?

            Grease: Live!