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Pc turns on but nothing comes up on the monitor

Hi everyone,

So one night my computer was working perfectly fine and then the next day it stopped working.
It was turning on but nothing was showing on the monitor. I googled the problem and did a few things.

1) I removed all the hardware, except processor & power supply but same issue.
2) I tried after removing ram, & then by switching ram slot but still no use.
3) I tried removing my gtx970 graphics card and use the built in monitor port and nothing worked.
4) I removed hdd and still nothing.
5) I removed the computer cord, & pressed & hold the "ON" button for 30 to 60 seconds but no use.
6) I tried to clear CMOS and still nothing.
7) I tried a different monitor and nothing.

I took it to a computer repair store and the guy told me the mobo was dead. So I switched it and when i did that it would turn on for a few seconds and turn off. It would continue to do that on its own, still nothing on the monitor display.

I then took it to another guy who said its not the mobo but its the graphics card and before i go spend money on a new one I want to make sure that, that's 100% the problem.

Any idea how to fix this issue or what is wrong with my computer?

Thanks.


My specs
Motherboard- MSI ATX Z97-G45
New motherboard- Gigabyte GA-Z97X-UD3H
Processor- Intel Core i7-4790K
Ram- G.SKILL Ripjaws X Series 16GB
PSU- Corsair CX750 Builder Series ATX 80 PLUS Bronze Certified Power Supply
Graphics card- EVGA GeForce GTX 970 SSC ACX 2.0+
HDD- WD Blue 1TB SATA
3 answers Last reply Best Answer
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  1. That is an insane diagnosis considering the computer should boot WITHOUT a GPU. How a GPU that isn't even installed in a PC could be blamed as the culprit is beyond me.

    That fact means the GPU is probably just fine. The fact that your PC used to work means that the motherboard was just fine (mobos RARELY fry, they usually arrive dead or die slow deaths as capacitors fail).

    The fact that it doesn't respond to RAM changes tells me the RAM is probably fine.

    Intel CPUs are robust and rarely die, degrade, or arrive dead, they are pretty solid.

    That leaves us the PSU. The fact that the first mobo wouldn't boot, and the second mobo has intermitent power problems... I'd like you to replace the PSU. The PSU will be dramatically cheaper than replacing any other component, and can always be returned if it doesn't seem to resolve anything.

    I don't usually see customs with intermitent problems like you describe, but i do see a lot of OEM Dells with similar issues.

    Try swapping the PSU.
  2. greens said:
    That is an insane diagnosis considering the computer should boot WITHOUT a GPU. How a GPU that isn't even installed in a PC could be blamed as the culprit is beyond me.

    That fact means the GPU is probably just fine. The fact that your PC used to work means that the motherboard was just fine (mobos RARELY fry, they usually arrive dead or die slow deaths as capacitors fail).

    The fact that it doesn't respond to RAM changes tells me the RAM is probably fine.

    Intel CPUs are robust and rarely die, degrade, or arrive dead, they are pretty solid.

    That leaves us the PSU. The fact that the first mobo wouldn't boot, and the second mobo has intermitent power problems... I'd like you to replace the PSU. The PSU will be dramatically cheaper than replacing any other component, and can always be returned if it doesn't seem to resolve anything.

    I don't usually see customs with intermitent problems like you describe, but i do see a lot of OEM Dells with similar issues.

    Try swapping the PSU.


    Sorry for taking so long to respond. The psu I bought just came and when I tried it with the Msi mobo it turned on but then froze and didn't work so I turned it off and tried it again and back to the same problem. Tried it with the other mobo and same problem as before. I don't know what else it could be. Hopefully you know something that I don't. Thank you.
  3. Best answer
    Lunation said:
    Hi everyone,

    So one night my computer was working perfectly fine and then the next day it stopped working.
    It was turning on but nothing was showing on the monitor. I googled the problem and did a few things.

    1) I removed all the hardware, except processor & power supply but same issue.
    2) I tried after removing ram, & then by switching ram slot but still no use.
    3) I tried removing my gtx970 graphics card and use the built in monitor port and nothing worked.
    4) I removed hdd and still nothing.
    5) I removed the computer cord, & pressed & hold the "ON" button for 30 to 60 seconds but no use.
    6) I tried to clear CMOS and still nothing.
    7) I tried a different monitor and nothing.

    I took it to a computer repair store and the guy told me the mobo was dead. So I switched it and when i did that it would turn on for a few seconds and turn off. It would continue to do that on its own, still nothing on the monitor display.

    I then took it to another guy who said its not the mobo but its the graphics card and before i go spend money on a new one I want to make sure that, that's 100% the problem.

    Any idea how to fix this issue or what is wrong with my computer?

    Thanks.


    My specs
    Motherboard- MSI ATX Z97-G45
    New motherboard- Gigabyte GA-Z97X-UD3H
    Processor- Intel Core i7-4790K
    Ram- G.SKILL Ripjaws X Series 16GB
    PSU- Corsair CX750 Builder Series ATX 80 PLUS Bronze Certified Power Supply
    Graphics card- EVGA GeForce GTX 970 SSC ACX 2.0+
    HDD- WD Blue 1TB SATA


    have you look at this
    http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
    "No POST", "system won't boot", and "no video output" troubleshooting checklist
    "No POST", "system won't boot", and "no video output" troubleshooting checklistThis checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively... Read More
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