hello. i've been trying to set my rig on risers since 3 days already and i got to the point where things are not supposed to be logic anymore.
my system is ubuntu 12.04.2 x64 (tried it on 13.10 before). the cards were all connected by risers and visible in system before installing drivers - i checked it via
after installing AMD Catalyst 13.11 Beta system won't start anymore - first monitor didn't turn on, after one reset or two it worked but system were hanging up every time at ubuntu loading screen. those drivers worked for me before on 3 cards connected directly to the motherboard. moreover the system didn't start even after removing all cards and leaving only one connected directly to mobo. then i tried to make a fresh install of ubuntu but my display was so blurred I couldn't see anything. so i set bios settings to default and then i could start ubuntu without reinstalling it. before resetting bios the settings were set to disable all peripheral devices i weren't using, also PCI-e 3.0 was disabled too (i was using default settings before, but since it didn't work in the first place i was trying other settings in bios). now i'm again able to run 3 cards connected directly to mobo. i have no idea what i can do to make it work. i have powered pcie-risers with capicitors. the cards on risers are connected with 8+6 pins and riser's molex are used too.
any ideas? please help. i'll try it on windows today, but i prefer linux in long-term so i have to solve this issue.
