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Need help with multiple GPUs

Vortosh
By Vortosh
in Graphics Cards
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So to put it basically, I want to run my second and third monitor off of a different graphics card. I have done this in my system before with a GTX 645 borrowed from a friend. This worked without a problem for a fair bit of time. I needed to change what card I was using for my monitors as the old one is no longer available to me. 

 

My main card is a Radeon R9 380. I picked up a Radeon HD 6870 cheap and put it in the system. I ran the installer for the drivers (once I found ones that worked for the card) but nothing worked. so I took out the R9, uninstalled all drivers and just ran with the HD. This was mostly just to check the card is working and everything is fine... until I put the R9 back in and had to put its drivers back on. After installing the R9's drivers the HD card stopped working. So I went back to stage one and did it again, 3 times. 

 

If you hadn't picked up on the key question by now I would like to know if it is possible to run two Radeon cards in one system without crossfire. I think the problem is that the two drivers are over writing each other, dose anyone know if this is the case or is there something I am missing? 

 

Thanks for the help I hope someone will provide..

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You will need to download the latest driver that supports both cards. 

To be an expert is to know more about less.

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Would you have any idea where I could find this driver that supports both? 

If I try and use the 'detect my hardware tool' Radeon provide for their drivers it says that the HD card needs legacy drivers but it installs the R9 card fine. Because the HD card is a few years old now and probably not supported anymore but the R9 is still sort of new and updated is there a chance that there wont be a driver that supports both? 

 

 

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Just now, Vortosh said:

Would you have any idea where I could find this driver that supports both? 

If I try and use the 'detect my hardware tool' Radeon provide for their drivers it says that the HD card needs legacy drivers but it installs the R9 card fine. Because the HD card is a few years old now and probably not supported anymore but the R9 is still sort of new and updated is there a chance that there wont be a driver that supports both? 

 

 

What OS do you have and what bit version is it?

To be an expert is to know more about less.

  • 2014 Build --> FX 8350 4.7GHz {} ASRock Fatal1ty 990FX Killer {} Reference GTX 980 4GB {} 2x4GB 1866MHz HyperX {} Seagate 2TB 7200rpm {} 840 EVO 120GB {} XFX PRO850W {} Noctua NH D14 {} Fractal Define R4 White Windowed
  • 2018 Build --> Ryzen 7 2700X {} ASRock Fatal1ty X470 Gaming K4 {} Gigabyte RTX 2070 8GB {} 2x8GB HX Fury 3200MHz {} Toshiba P300 2TB {} Kingston 480GB A1000 {} Corsair RM750W {} Enermax LIQMAX II 240 {} Fractal Focus G
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13 minutes ago, Vortosh said:

Windows 10 64bit. 

The only driver I found was this one http://support.amd.com/en-us/download/desktop/previous/detail?os=Windows 10 - 64&rev=15.7

But have in mind this driver is from 2015 so you will have perfomance issues and some games may not even work ect. 

It's a to big generation difference to have it really working fine. 

So try that driver and best of luck.

To be an expert is to know more about less.

  • 2014 Build --> FX 8350 4.7GHz {} ASRock Fatal1ty 990FX Killer {} Reference GTX 980 4GB {} 2x4GB 1866MHz HyperX {} Seagate 2TB 7200rpm {} 840 EVO 120GB {} XFX PRO850W {} Noctua NH D14 {} Fractal Define R4 White Windowed
  • 2018 Build --> Ryzen 7 2700X {} ASRock Fatal1ty X470 Gaming K4 {} Gigabyte RTX 2070 8GB {} 2x8GB HX Fury 3200MHz {} Toshiba P300 2TB {} Kingston 480GB A1000 {} Corsair RM750W {} Enermax LIQMAX II 240 {} Fractal Focus G
  • 2021 Build --> Ryzen 9 5900X {} ASUS ROG Strix X570-F GAMING {} ASUS GeForce RTX 3080Ti ROG STRIX OC {} Gigabyte AORUS RGB DDR4 32GB {} Kingston KC2500 M.2 2280 NVMe 2TB {} Seasonic FOCUS GX-1000 {} ASUS ROG Ryujin 240 AIO {} NYXT H710i
  • 2026 Build --> Ryzen 9 9950X3D {} ASUS ROG CROSSHAIR X870E HERO {} ASUS GeForce RTX 5090 32GB ASTRAL LC {} G.Skill TridentZ Royal Neo RGB Silver DDR5 CL28 6000MHz 2x16GB {} Samsung SSD 4TB 9100 PRO M.2 {} Seasonic 1600W PRIME TX Noctua Edition {} Fractal Lumen S36 V2 RGB 360mm AIO {} Fractal Design North XL Charcoal
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