GPU1: Free VRAM: 7.948 GB; used: 0.052 GB
GPU1: Disabling DAG pre-allocation (not enough VRAM)
GPU1: Allocating DAG for epoch #382 (3.98) GB
GPU1: Generating DAG for epoch #382
error=Disabling DAG pre-allocation (not enough VRAM)
in 7xRx-580 8Gb
Have you tried to add the "-rvram 1" parameter to the miner? If not it should free up more memory for the GPU's, and buy you some more time. Best option would be to use teamredminer, but I guess that does not work with Hawaii cards?