CPU: AMD Phenom II X4 970
MOBO: Biostar TA890FXE
RAM: 2x Crucial 4GB DDR3 1333MHz and 2x Kingston 4GB DDR3 1333MHz
GPU: 2x Saphire Radeon HD 7790 OC 1 GB GDDR5
OS: Windows 7
Graphics Driver: AMD 16.7.1
I hope I got everything, let me know if I need to provide more.
I had just bought the 2 graphics cards recently, and after installing them had some issues with enabling crossfire between them. I have done a complete uninstall of the drivers and reinstall of the new drivers a couple of times, had a couple of hiccups while installing them, but finally got that squared away. However when I went to set them up in crossfire, I am not seeing the option to do so in any of the settings, I am using the Crimson AMD Radeon Settings and not under the game profiles, global settings profile, or the additional settings sections am I seeing the crossfire option. And I just noticed that my second card is disabled in the system tab. However in my device manager it is showing as both cards are enabled, and that driver software is up to date for both. And I also just noticed that under the tab for each card, all the information is the same, except for "Current Bus Settings" for my primary it reads as PCI Express 2.0 x4, and for the disabled it reads PCI Express 2.0 x1, not sure if that is causing an issue or not, and I would like to point out also, on the mother board the slots appear to look the same.
As far as other fixes go, I have downgraded my drivers back to the Catalyst Control Center versions, multiple ones that supported the cards, I have tried multiple versions of the new Crimson drivers and none have had the crossfire support. I have rebooted after each installation/uninstallation to ensure the changes were made, plugged my monitor into each graphics card, both worked and shows the picture, I have swapped cards with the other slot. Both cards are plugged into the power supply. Also if it matters I use an HDTV as a monitor, using just standard HDMI cords, not going DVI to HDMI.
As far as testing to see if the cross fire was working, which being as I am not sure whether or not its enabled in the first place I had to double check anyway, I run GPU-Z and it says crossfire is disabled, I have MSI Afterburner running and while playing various games, which should be crossfire compatible such as Skyrim/Fallout 4, and possibly others which aren't going to be compatible anyway, but their profiles popped up in the Crimson settings, the MSI Afterburner shows that the second card is doing nothing except running the fan at 20%, otherwise GPU 1 is doing all the work. I ran both cards in Fur Mark and both showed close to same results and handled the stress test quite well I thought.
Outside of all of that, I have checked across multiple forums for various solutions, I can't remember all of different ones I tried, being as that has been a couple months now (work got hectic and I spent most of my time at home eating and sleeping, not messing with my computer). Oh, also I have had a strange graphics glitch with fallout 4, which I assume was due to an over heating issue, the game after a certain period of time would cause the graphics to do like a negative picture thing, and well...not sure how else to describe it but here's a video it would also happen in certain area's of the game randomly, not sure if that will help any knowing, but I figure it might help in trouble shooting.
MOBO: Biostar TA890FXE
RAM: 2x Crucial 4GB DDR3 1333MHz and 2x Kingston 4GB DDR3 1333MHz
GPU: 2x Saphire Radeon HD 7790 OC 1 GB GDDR5
OS: Windows 7
Graphics Driver: AMD 16.7.1
I hope I got everything, let me know if I need to provide more.
I had just bought the 2 graphics cards recently, and after installing them had some issues with enabling crossfire between them. I have done a complete uninstall of the drivers and reinstall of the new drivers a couple of times, had a couple of hiccups while installing them, but finally got that squared away. However when I went to set them up in crossfire, I am not seeing the option to do so in any of the settings, I am using the Crimson AMD Radeon Settings and not under the game profiles, global settings profile, or the additional settings sections am I seeing the crossfire option. And I just noticed that my second card is disabled in the system tab. However in my device manager it is showing as both cards are enabled, and that driver software is up to date for both. And I also just noticed that under the tab for each card, all the information is the same, except for "Current Bus Settings" for my primary it reads as PCI Express 2.0 x4, and for the disabled it reads PCI Express 2.0 x1, not sure if that is causing an issue or not, and I would like to point out also, on the mother board the slots appear to look the same.
As far as other fixes go, I have downgraded my drivers back to the Catalyst Control Center versions, multiple ones that supported the cards, I have tried multiple versions of the new Crimson drivers and none have had the crossfire support. I have rebooted after each installation/uninstallation to ensure the changes were made, plugged my monitor into each graphics card, both worked and shows the picture, I have swapped cards with the other slot. Both cards are plugged into the power supply. Also if it matters I use an HDTV as a monitor, using just standard HDMI cords, not going DVI to HDMI.
As far as testing to see if the cross fire was working, which being as I am not sure whether or not its enabled in the first place I had to double check anyway, I run GPU-Z and it says crossfire is disabled, I have MSI Afterburner running and while playing various games, which should be crossfire compatible such as Skyrim/Fallout 4, and possibly others which aren't going to be compatible anyway, but their profiles popped up in the Crimson settings, the MSI Afterburner shows that the second card is doing nothing except running the fan at 20%, otherwise GPU 1 is doing all the work. I ran both cards in Fur Mark and both showed close to same results and handled the stress test quite well I thought.
Outside of all of that, I have checked across multiple forums for various solutions, I can't remember all of different ones I tried, being as that has been a couple months now (work got hectic and I spent most of my time at home eating and sleeping, not messing with my computer). Oh, also I have had a strange graphics glitch with fallout 4, which I assume was due to an over heating issue, the game after a certain period of time would cause the graphics to do like a negative picture thing, and well...not sure how else to describe it but here's a video it would also happen in certain area's of the game randomly, not sure if that will help any knowing, but I figure it might help in trouble shooting.
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