- 890FXA-GD70 mobo. plenty of power
- using PCIe x1 & x16 Extender from: http://forum.bitcoin.org/index.php?topic=6128.0
Windows7 x64. sdk2.4 video driver 11.5 or 11.6
The system is completely unstable. BSOD (from video driver) or it simply freezes.
I don't even begin overclocking anything (not enough time to get that far before issues occur). Stock settings.
if I take out the 4th card the system runs just fine... not using crossfire.
Does anyone have any ideas about this? Have you experienced this too or have you heard about it?