So I have 2 R9 295x2's in my new 4k oriented system. Issue is performance... Crysis 3 for example seems to go to a crawl, and that's on the menu not even made it into the game yet. Witcher 2 crashes on game load.... I'm using Beta 14.6 drivers, but something is not right... Any help on this would be greatly appreciated.... Thanks in advance! System specs: Corsair 760T Case Corsair AX1500i PSU Gigabyte G1 motherboard Intel i7 4790k Corsair Vengeance Red 32GB RAM 2x Powercolor R9 295x2 4x 1TB Samsung 840 Evo SSD (RAID 0) Windows 8.1
Test each card to their own, see if they work. before the upgrade did everything work? Check that ur PSU is enough for everything, cause those 2x295 need nuclear plant.
to test both cards individually, will simply unplugging the power from them but leaving them in the PCI-E slot be ok? Or will they need to be removed completely? FYI: I played Arkham Origins for a couple of hours with no issues and Heaven benchmark also works flawlessly...
You can't just unplug the power cables afaik. With my board there's a switch to turn off the PCI-e slot, which is the easiest way to do it. See if you have this functionality on yours Also - holy cow, that's a lot of GPU power you have there
Haha thanks, well it would be if they frigging worked! EDIT: It's this board, GA-Z97X-Gaming G1 WIFI-BK do you know if it has that functionality? Unmounting the rads is something I could do without lol
Lmao dude is that PC even real? 4TB of SSD storage? What is that even for? xD Do the games work in 'single card' mode in CCC?
Bloody hell mate, you seem to have spend a small fortune on a system, that you don't seem to really understand (no offence!) 99% of people on this forum would have said that crossfiring 295x2 is a really bad idea Disable crossfire in the CCC
Ok, well I don't know what the problem was, but uninstalling the cards, testing them individually and then combining them again has solved everything. Crysis 3 runs insanely well and looks incredible. Well if games don't support the Crossfire now, hopefully they will later. I got the system that way to maximise performance @ 4k. Based on the Crossfire performance for Crysis though, well worth it to me!
If a game doesn't support crossfire, you're looking at single 290x performance, or worse (negative scaling). Crossfire support is good nowadays though. I still wouldn't have gone with 2 of those cards, just to much hassle. But I'm glad it all works for you now.
I hope that AMD quad gpu support is better than Nvidia's counterpart - when i ran quad sli with 295's, the support was pretty lackluster... Im guessing driver issues is the same issue that you are encountering with your quadfire setup.
You live near a power plant so your PC directly connected getting enough watt?... Even NASA don't have this power at there disposal
