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How do I reset BIOS to default with constant black screen?

For a few weeks now, I've been experiencing BSOD every time I play a game that requires a lot from the system or if I run Microsoft Security Essentials. About halfway through the scan it gives BSOD.

According to online sources, it was some malware and people suggested Malwarebytes. It found quite a lot of content to delete so it did but the BSOD kept persisting. I also tried CCleaner and it also cleared temporary files and such, but I still got the same errors.

I went to the last resort of reinstalling windows. After installing all the drivers I ran a Microsoft Security Essentials scan and it gave the same error. Note that I have not formatted my other drives, which leads me to believe that that's where the problem might be.

I thought the problem would be from BIOS somewhere, due to some fan problem (never did overclock or stuff like that). I accidentally set the display option to Manual or VGA (I can't remember exactly) and ever since I have constant black screen, but the system works perfectly. I can hear the Windows start-up music playing, and if I press F2 it enters BIOS since I do not hear any music playing.

I have an ASUS Z97-K Motherboard, and it enters into EZ BIOS menu, from which I could press F 5 to reset to default BIOS settings and then F10 to save and exit. I wonder though if it will ask me whether I am sure in which case would a simple enter button work to make the screen work again
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  1. Best answer
    Have you tried plugging the monitor in to the board's integrated GPU port to get a signal to it
    (or is that the only GPU your system has)?
  2. Phillip Corcoran said:
    Have you tried plugging the monitor in to the board's integrated GPU port to get a signal to it
    (or is that the only GPU your system has)?


    I haven't although I am not sure if I have one, I just searched the internet for the motherboard but cannot seem to find an integrated GPU port. (I am currently away from home so I cannot check directly). I have a GPU: AMD Radeon 6800 Series if memory serves, can't tell which model exactly. Which one would the integrated GPU port be according to this link?:

    http://dlcdnet.asus.com/pub/ASUS/mb/LGA1150/Z97-K/E9017_Z97-K.pdf

    Sorry for not knowing some (probably) basic stuff.
  3. I've already checked the motherboard specs and it definitely has an integrated GPU otherwise I wouldn't have suggested using it.
    In the manual scroll down to sections 1-13 & 1-14 (Rear Panel Connectors). All the I/O ports are shown on those pages.
  4. Phillip Corcoran said:
    I've already checked the motherboard specs and it definitely has an integrated GPU otherwise I wouldn't have suggested using it.
    In the manual scroll down to sections 1-13 & 1-14 (Rear Panel Connectors). All the I/O ports are shown on those pages.


    You are my hero! Thank you so much for helping me out with this one! Would you also happen to have a hunch as to why I am still getting BSOD whenever I run Microsoft Security Essentials scan or play games that require a lot from the PC?

    Thanks again for all the quick replies and help you have given!
  5. Not too hot on BSODs but you might want to test for hardware causing them (HDD & RAM). Test them both:

    HDD test: download CD image of DFT, create CD from it & boot your PC from it:
    https://www.hgst.com/support/downloads/legacy-downloads#DFT

    RAM test: download CD image of Memtest, create CD from it & boot your PC from it:
    http://www.memtest.org/#downiso

    If nothing wrong with either of those, I suggest you start a new thread to stimulate fresh interest.
    Mention that RAM & HDD have been tested and are OK.
  6. Phillip Corcoran said:
    Not too hot on BSODs but you might want to test for hardware causing them (HDD & RAM). Test them both:

    HDD test: download CD image of DFT, create CD from it & boot your PC from it:
    https://www.hgst.com/support/downloads/legacy-downloads#DFT

    RAM test: download CD image of Memtest, create CD from it & boot your PC from it:
    http://www.memtest.org/#downiso

    If nothing wrong with either of those, I suggest you start a new thread to stimulate fresh interest.
    Mention that RAM & HDD have been tested and are OK.



    I doubt it, all my hardware except the GPU are relatively new, about 7 months old, with absolutely no problem up to the last couple of weeks when the BSOD started. I will run the tests though once I get home, thanks again!
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