Can one install Nvidia and ATI on the same Windows rig? Anyone experimented NVidia cards on PCI-e risers?
I ran GTX670 as a primary and R290X as secondary on Windows 7 for a month. Cgminer is a pain in the ass to tweak though, wrong settings would either stall the computer or reboot it spontaneously, I had days were it ran well for hours and days were it rebooted every 5min on same settings.
Getting your actual accepted hash was a pain also, you might be mining at 900Kh but W/U would only be 750-800
I swapped for the Gigabyte 780 Ghz edition. To be honest lost maybe like 100-150kh (accepted) (regular scrypt), but:
1) Runs much more stable
2) Cudaminer keeps boosting performance, specially for like Vertcoin, YAcoin
3) you can actually take advantage of the second nVidia card if you decide to play games
4) produces less heat
R290x doesn't work unless you plug a monitor to it or use a dummy plug.
Orange is rejected
https://i.imgur.com/4isfWxA.png