Mine seem to crash a lot
Motherboards make a HUGE difference. I only use higher end ones. The little extra is worth all the time and headaches saved.
Powersupply is another big thing.
I always stick with asus, but for one time I bought asrock. The mobo is not stable and they are not issued new bios since release...
Damn
Im going to try the new Asus Z370 Gaming F in the next few days. Reading through the manual it seems it should work with 9 cards (7 in pcie and 2 in m.2).