Monitor "no Signal" after Windows Boot


  1. Atomtomate
    Posts : 7
    Windows 7 Ultimate x64
       New #1

    Monitor "no Signal" after Windows Boot


    Hi,
    this is a problem with completely new hardware:
    - 350W power suply. this is not strong enough but the problem keep happenung without external graphics card
    - 4x4 CorsairDDR3-1600 DIMM CL8
    - AMD A10 Series A10-5800K
    - XFX Radeon HD 7970 925M
    - Gigabyte GA-F2A75M-D3H
    - windows 7 SP1 64bit

    After windows install and reboot the windows logo appears and stays as long as it normally takes to boot. then the monitor showes "no signal" and stays that way. i have tried:
    - booting without extarnal graphics card
    - booting in safe/low graphics mode
    - switching onboard graphics off/on
    - setting default display port manually
    - reinstalling window for most of these configurations
    the monitor is rather old and only has a vga cable i did use a adapter for dvi tho.
    the porblem doesn't change at all when trying these steps.

    are there any other things i can try?
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  3. Ztruker
    Posts : 6,285
    Windows 10 Pro X64
       New #2

    I would suspect the monitor first. Can you borrow another to try?

    You will definitely need another power supply too.
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  4. Atomtomate
    Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       New #3

    hi,
    just wanted to let you know that it turned out to be a bios issue. after resetting the bios (whole bios not just configuration) the pc was booting properly. thanks for the help!
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  6. Ztruker
    Posts : 6,285
    Windows 10 Pro X64
       New #4

    That's good news, glad it was something easy to fix. Still think you need a better power supply though, but you can't argue with success. Does it work with the video card installed or only the onboard video chip?
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  7. Atomtomate
    Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       New #5

    it works with both. honestly i am also supürised the power suply is sufficient but it seems to work perfectly fine in benchmarks
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