Does anyone know if its possible to make Furmark stress a crossfire setup. At the moment with my two 3850's, running the benchmark puts the first card on full load and seems to ignore the second card, leaving it at 0% load. Does Furmark not have Crossfire support?
Obvious questions: but is CrossFire enabled in the driver? Does it have the CrossFire connector between the cards and what drivers are you using?
Yes crossfire is enabled. I can see it through GPUZ. I've got both connectors connected and I'm using Catalyst 8.9
If you want crossfire to work in Furmark, you need to rename the FurMark.exe to something with a crossfire profile in the drivers. Try renaming FurMark.exe to ETQW.exe Before doing this I was getting a score of 4400. After the rename I got around 8500. (this was with 2 HD4850s at stock)