Adjusting your settings might prevent future crashes. It took me about a week of tinkering (per card in my rig) to get the best balance of hashrate/stability/power consumption. You want to push your memclock higher, then drop your core clock and power down to lower power consumption.

Not sure how NVIDIA cards do with it, but I run Claymore's dual miner with ETH and DCR. Basically the same ETH hashrate and very little additional power, but you mine a second coin.

Good luck.