This weekend I combined two smaller rigs with two cards each into one large => to save energy and improve stability. I don't have to mention what a hassle it is to get even geth properly running. First I ran into corrupt database errors mining stale blocks and what not and later I'd simply not find any blocks at all with the new setup.
Added my old SSD drive and within minutes I was finding blocks, very strange but goes to show: Never touch a running system
Anyway, my question is how good of an idea it is to to have one large rig rather than two smaller. In theory it should be more reliable. I used a Add2PSU adapter to combine 2 PSUs and I use regular risers for the cards.. all works fine. Had a small issue with ASUS surge protection triggering but after I added the hard drive to the 2nd PSU, everything went smoothly and its now my most stable rig. No issues whatsoever. I'll take some pictures later, looking good