I'm running xubuntu on this motherboard and three sapphire 7950 graphics cards. The computer boots and works fine when I have just two of them installed, but when I attach the third the computer stops booting in the middle of the Xubuntu loading screen.
I don't think that this is being caused by lack of power because I'm using this 1600 Watt power supply and I'm able to navigate around the bios page just fine.
What could be causing this? Any suggestions on how to fix?
This is what I found when I go into advanced mode and look at the
and it keeps on giving me the message
udevd: timeout: killing /sbin/modprobe -vb pci:XXXXXXXXXXXXXXXXXX 
When I do as khajvah suggests and enter advanced mode and then as root run
sudo startx I get
Fatal server error: could not create lock file in /tmp/.tX1-lock
xinit: giving up xinit: unable to connect to X server: Connection refused xinit: server error xauth: error in locking authority file /root/.Xauthority
here is the whole message