Crossfire Activity in CCC

cheeto2

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Apr 4, 2018
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4,530
Sapphire Radeon HD 6850 1GB (each card; 2gb total)
Running windows 10 latest updates
CCCC 15.7.1
CCC Drivers 15.20.1062.XXXXXXXXX

In CCC under "performance>>>AMD Overdrive where I can select one of two "AMD Radeon HD 6800 Series" GPUs one of the cards indicates very little under "Activity during gameplay whereas the other card shows about 95% active and about 20C hotter at 75c (cooler card being around 55c).

Is the game/PC actually using both cards?

Enabling and disabling crossfire seems to have no impact on FPS.

Thanks for any help.
 
Solution
Check the game and make sure it actually supports SLI/Crossfire. Many newer games are dropping support for multi-card setups. Check to make sure your motherboard actually supports Crossfire. Just because it has two PCI-Ex16 slots does not necessarily mean Crossfire is supported.

-Wolf sends

Wolfshadw

Titan
Moderator
Check the game and make sure it actually supports SLI/Crossfire. Many newer games are dropping support for multi-card setups. Check to make sure your motherboard actually supports Crossfire. Just because it has two PCI-Ex16 slots does not necessarily mean Crossfire is supported.

-Wolf sends
 
Solution

cheeto2

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Apr 4, 2018
43
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4,530
Thanks. Motherboard is a Biostar A870U3. Checked the manual and there is no mention of crossfire. Game I am trying to play is Kingdom Come Deliverance. Getting about 20FPS. I know this is a tough game, but I just want to make sure the game is actually using both cards.

My laptop i7, 8GB PC4, and a 2gb 940mx plays this game as well as this desktop with a 965 BE, 2-HD6850s and 16GB PC3.

Should I try removing the crossfire cable and compare FPS?
 

cheeto2

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Apr 4, 2018
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4,530
Just got the Crossfire logo to load in COD WW2 (terrible framerate)...lesson learned...2 dated cards do not make a decent card. :(

Was working for sure this time... GPU temps were low 60c and only 2-4 degrees variation.

Guess I will use laptop for Kingdom Come Deliverance.