I know most setups for 2 or more GPUs were via riser. Just curious if anyone tried installing 2 GPUs onboard instead of risers.
What motherboard do you recommend that can accomplish this?
I still have a mini-rig with two Gigabyte R9 290s (reference design) installed on motherboard (ASRock Z87 Pro4). This setup is working in mining since January, 2014 (Sic!).