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POST no bios goes to disk boot failure. Also when I plug in the power supply to the graphics card and start it nothing appears

Gigabyte GA-78LMT-USB3 Motherboard
Gigabyte AMD R9 380 GPU
AMD FX 8350 CPU
This is my first computer build idk whats wrong.
I did the power on self test and it'll show the bios for maybe 2 seconds and then it'll go to the disk boot failure screen.
If i plug in the power to the GPU the screen never shows anything
12 answers Last reply Best Answer
More about post bios disk boot failure plug power supply graphics card start appears
  1. Make and model on the power supply?
  2. logainofhades said:
    Make and model on the power supply?


    Evga 500w model number 100-w1-0500-kr
  3. That is not a very good unit. Tier 1 or 2 only 550w+ http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
  4. Best answer
    Kevin_134 said:
    Gigabyte GA-78LMT-USB3 Motherboard
    Gigabyte AMD R9 380 GPU
    AMD FX 8350 CPU
    This is my first computer build idk whats wrong.
    I did the power on self test and it'll show the bios for maybe 2 seconds and then it'll go to the disk boot failure screen.
    If i plug in the power to the GPU the screen never shows anything


    First, do not run the system with the power disconnected for the video card, you can damage the video card and possibly the motherboard. Second, you should have someone that built computers before look over your work to make sure everything is connected properly.

    And upgrading the power supply as above for a power hungry system with that CPU and video card is also a good idea. If you used a lower power system with nVidia and Intel parts you would be Ok with the PSU you got, with the 380 and the FX 8350 you need a better power supply.

    You also need a better motherboard for the FX 8350, read this http://www.tomshardware.com/answers/id-1896886/motherboard-amd-8350.html it has some info about stability of the system with that CPU on cheap boards.

    About the boot failure, did you install Windows on the hard drive?
  5. hang-the-9 said:

    About the boot failure, did you install Windows on the hard drive?


    No.
    so do i absolutely need a new psu and motheboard?
  6. Kevin_134 said:
    hang-the-9 said:

    About the boot failure, did you install Windows on the hard drive?


    No.
    so do i absolutely need a new psu and motheboard?


    If you did not install Windows, how to you expect it to NOT to have a message about disk boot failure? It has nothing to boot to. That's normal, so the only issue is no video when using the video card. Is the video cable in the video card or the motherboard video ports? And as before, make sure you do not run the system with the card in but no power to it. It may have been damaged already if you did that.

    You can test the system with a low power video card (maybe borrow from a friend or somewhere?) and see if the power supply needs upgrading to run. If the system runs fine on the low power card, need a new power supply. If it does not run even then, something is not right with other components.
  7. Thank you for telling me I needed to install Windows. I didn't do that but I have now.
    I tried the video cable in both the video card port and motherboard port and neither work. My monitor does not get signal from either. It works with the graphics card not connected at all, using the onboard graphics.
    So psu needs to be upgraded?
  8. The FX CPU does not have a graphics chip, so using the motherboard port won't help you. But the video card should work, unless the power supply is not working properly. Do you have both power leads to the video card? Can you test the card in another system that can run it? Can you have someone that build computers before check over the build to make sure it's setup properly? Motherboard stand-offs in right, CPU seated properly, etc...
  9. hang-the-9 said:
    The FX CPU does not have a graphics chip, so using the motherboard port won't help you. But the video card should work, unless the power supply is not working properly. Do you have both power leads to the video card? Can you test the card in another system that can run it? Can you have someone that build computers before check over the build to make sure it's setup properly? Motherboard stand-offs in right, CPU seated properly, etc...


    760g motherboards have the IGP built into the motherboard, because it is such an old chipset. No AM3+ CPU has IGP built in.
  10. logainofhades said:
    hang-the-9 said:
    The FX CPU does not have a graphics chip, so using the motherboard port won't help you. But the video card should work, unless the power supply is not working properly. Do you have both power leads to the video card? Can you test the card in another system that can run it? Can you have someone that build computers before check over the build to make sure it's setup properly? Motherboard stand-offs in right, CPU seated properly, etc...


    760g motherboards have the IGP built into the motherboard, because it is such an old chipset. No AM3+ CPU has IGP built in.


    You mean the onboard video will work on that motherboard even though the FX chip does not have a video processor?
  11. Yes, it will. The IGP is part of the chipset, for 760g. The G stands for graphics. It is an old chipset, made before IGP was added to CPU. It has been around since the original AM2+ Phenoms. Not really any different than how Intel used to do things, back in the Core 2 days.
  12. It works now! I moved some cables around and it works now lol.
    Thank you guys for trying to help out.
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