GPU Upgrade Problem

Hello,

I wanted to replace my old graphics card (a PNY GEFORCE 550TI) with a EVGA GEFORCE GTX 950.

I installed the new card in the slot but I can not get past BIOS whatever I do - pressing the prompted key like DEL/F9/F10 etc does nothing and eventually I get a black screen and have to turn the system off. I have put my old card back in and that will boot to Windows fine. The on board graphics will boot too.

I removed all the old drivers, removed the memory and resited it. I made sure I had up to date motherboard drivers and that the BIOS was set up correctly so I am a bit at a loss where to go next.

I was thinking it may be something to do with the PCI connections. My old card had a 6pin connection and the new one has 8. An adapter was provided but I have tried lots of variations in connections and nothing changes.

MB is a Gigabyte GA Z77X D3H, PSU is XFX PRO850W, 8GB RAM.

Any suggestions?

Thanks for any advice!
Reply to nicholasduncan777
2 answers Last reply
More about gpu upgrade problem
  1. Used card? I suspect it is faulty. Try putting the old card back in and running DDU to uninstall the old driver package. Then swap out cards. If the card doesn't allow you to boot to the desktop, I'd suspect it is bad. Of course, you'll have to re-install the driver for your old card again.
    Reply to clutchc
  2. nicholasduncan777 said:
    Hello,

    I wanted to replace my old graphics card (a PNY GEFORCE 550TI) with a EVGA GEFORCE GTX 950.

    I installed the new card in the slot but I can not get past BIOS whatever I do - pressing the prompted key like DEL/F9/F10 etc does nothing and eventually I get a black screen and have to turn the system off. I have put my old card back in and that will boot to Windows fine. The on board graphics will boot too.

    I removed all the old drivers, removed the memory and resited it. I made sure I had up to date motherboard drivers and that the BIOS was set up correctly so I am a bit at a loss where to go next.

    I was thinking it may be something to do with the PCI connections. My old card had a 6pin connection and the new one has 8. An adapter was provided but I have tried lots of variations in connections and nothing changes.

    MB is a Gigabyte GA Z77X D3H, PSU is XFX PRO850W, 8GB RAM.

    Any suggestions?

    Thanks for any advice!



    that power supply should have a 8-pin or 6+2-pin pcie cable

    no adapters are needed, connect it directly
    Reply to maxalge
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