Hello,
few days ago I got my fifth 280x. Now I'm trying to get it to work with all five GPUs.
I had AMD 13.12 driver installed but the fifth GPU showed error 43 in the device manager. I switched the slots and it's always a different GPU showing that error. Then I read that with Windows 7 I need the older 12.6 AMD driver. Now they're all recognized as 7900 series and I get only about 500 kh/s (before that I got 730-750 kh/s).
And the strangest thing is: The fifth GPU runs only with about 18 kh/s.
I hope you can help me
