Installing new gfx card help!!

i bought an ATI hd 6870 today and im swapping from nvidia, i installed the hd 6870 and i plugged in the vga to dvi adapter to the card then put my monitor vga into the dvi adapter, then when i run my pc i get no signal on my monitor, ive read forums that say i need to uninstall my nvidia drivers and then install ati drivers but how can i when my pc wont detect the new graphics card
28 answers Last reply
More about installing card help
  1. Put your old gpu back, uninstall driver, turnoff, put in new gpu. The gpu should run at vga resolution for you to install a new driver from disk. Then update to newest driver.
  2. Need to know your set up(PSU, Mobo)
    Did you plug in the external power cables to your 6870?
    On-board graphics?
    Which card upgrade from?
  3. Pyree said:
    Put your old gpu back, uninstall driver, turnoff, put in new gpu. The gpu should run at vga resolution for you to install a new driver from disk. Then update to newest driver.


    i tried that then when i plug my new card back in i still get no signal, so i need to use onboard vga slot to see anything
  4. jeepster50 said:
    Need to know your set up(PSU, Mobo)
    Did you plug in the external power cables to your 6870?
    On-board graphics?



    my psu is coolermaster gx750 and im not sure about my mobo
  5. Ryoere said:
    i tried that then when i plug my new card back in i still get no signal, so i need to use onboard vga slot to see anything

    You need to disable on board graphics in the bios.
  6. just remember to uninstall nvidia drivers before upgrade and disable on board graphics in bios on power-up after install.
  7. jeepster50 said:
    just remember to uninstall nvidia drivers before upgrade and disable on board graphics in bios on power-up after install.


    im too confused, nvidia drivers are uninstalled, on board graphics is disabled, i plug my monitor vga into my hd 6870 but it says no signal on a black screen, the hd6870 is working though cuz the fan is on
  8. Need AMD drivers
  9. Try the other dvi
  10. jeepster50 said:
    Need AMD drivers


    when i install them it does nothing, it doesnt install control center the only thing i get from it is run ati problem wizard...
    ffs
  11. Pyree said:
    Try the other dvi


    the dva to vga adapter wont fit in the other dvi
  12. Ok, that is good. At least you have picture. It looks like you have 2 computer, download the newest driver from amd and use a usb to install the latest driver.
  13. Pyree said:
    Ok, that is good. At least you have picture. It looks like you have 2 computer, download the newest driver from amd and use a usb to install the latest driver.


    noo dude im only getting picture cuz im using the onboard VGA slot even though its disabled.. its so ******* stupid and confusing why cant it just work
  14. Google it and download the manual for it.
  15. You might have to update your mobo bios, you can check with manufactures website!
    I know its a little late but you should always research before not after upgrading, to avoid unpleasant surprises.
  16. jeepster50 said:
    You might have to update your mobo bios, you can check with manufactures website!


    cant find it anywhere
  17. ok I think its time for system restore to when you still have nvidia driver. then you can put the old card back in and try again in correct sequence.
  18. Pyree said:
    ok I think its time for system restore to when you still have nvidia driver. then you can put the old card back in and try again in correct sequence.

    Hes using on-board VGA why go back?
  19. Whats SiSandra show as your mobo model?
    It's under hardware tab. Post a screen shot of it.
  20. jeepster50 said:
    Hes using on-board VGA why go back?


    Well I though that he is not familiar with his hardware, so I am trying to lead him to solve the problem with an alternative approach without the need to flash bios etc.
  21. Pyree said:
    Well I though that he is not familiar with his hardware, so I am trying to lead him to solve the problem with an alternative approach without the need to flash bios etc.

    He may not have to flash it. Its probably in bios settings that hes missing so the next step would be to identify the mobo.
  22. The 6870 might be incompatible with his set-up.
    Onboard Nvidia chipset = AMD no work.
  23. I am betting on the backward compatibility of pci-e if it is hardware. May be he is one of those 2.1 and 1.0 incompatible combination. Never heard of the nvidia chipset amd gpu incompatibility before. Did a google search, I think it is rumor.
  24. By the way whee is ryoere? Still waiting for his mobo detail.
  25. Pyree said:
    I am betting on the backward compatibility of pci-e if it is hardware. May be he is one of those 2.1 and 1.0 incompatible combination. Never heard of the nvidia chipset amd gpu incompatibility before. Did a google search, I think it is rumor.

    I know they don't play nice together.
  26. I think I will leave the problem for you to solve, if ryoere turn up again. It's late in Australia.
  27. Without his input nocan-do.
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