Hi guys, I'm having a major issue and I don't know why.

http://i.imgur.com/69VGffx.jpg

My 3x7990's arrived and I'm building the new addition to my mini-farm but at stock settings, the 7990 is throwing up HW errors and I'm not sure why.

Originally I thought it was because I was trying to undervolt (man these cards run hot) but even at stock settings... no dice.

Below is my config, let me know if there is anything I can do/try to get this thing going and it's really annoying me. Last night I got it stable but woke up with morning with no HW errors but CG miner crashed shortly after I went to bed.

What voltage should I try?

Cards are 2x ASUS and 1x MSI.