Windows 8 won't start after video card and PSU upgrade

Hi!

Please help, I just upgraded my video card and PSU, and now my OS (windows 8 pro) won't start.

I can see the 'Gateway' screen on the monitor bur after that, just an annoying black screen.

I might have forced some connectors in and out the mother board, and I'm worried I could've damaged something. Also, the SATA connector plug that came with my new PSU wouldn't fit in my HD!! so I really forced it in (after reading a post in this very same site that said the ONLY solution to this was doing so).

Is it possible that a forced connection of the SATA cable to the hard drive is affecting it's performance and preventing the OS to start? Or did I damage something while installing my new cool hardware???

Please help me!!

TKS!
4 answers Last reply
More about windows start video card psu upgrade
  1. Start by checking all your connection including data cables.
  2. What is the model number of your Gateway system?

    What is the brand and model of the new video card and PSU?

    Which video port do you have the monitor plugged into?
  3. What is the model number of your Gateway system?
    GATEWAY GT3020M

    What is the brand and model of the new video card and PSU?
    COOLERMASTER EXTREME II 475W
    NVIDIA QUADRO PNY 600 1GB DDR3

    Which video port do you have the monitor plugged into?
    THE VIDEO CARD PORT

    Thaks a lot for answering, hope you can help me :)
  4. Test one new component at a time.
    Does the PC boot with just the new PSU and using the Intel GMA 900 integrated graphics? If it does then the hard disk drive works. If it doesn't then you may have a boot device problem and will have to remedy that first.

    If you can boot from the hard disk drive then power down the PC and unplug the AC power cable. Re-install the discrete graphics card and power it back on.

    Attempt to boot into Safe Mode. What happens?
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