ya i figured out whats happening, for whatever reason excavator drops my GTX 1080 memory down by 400 hz
I have to overclock my memory by 800 mhz (5800), so that when excavator launches, it drops it down to 5400, which is still 'good', and i get 500 sols then on my gtx 1080
but very unstable. EWBF figured out how to not have this happen obviously as with stock settings (not overclocked memory) I'm getting 500+ sols with his miner
Here is a photo showing the ridiculous memory overlclock I need to make nice hash miner (excavator) keep up with ewbf. notice that even with +800 and a clock of 5800, when excavator launches, it drops to 5350
http://imgur.com/gEx0wmpEDIT: This seems to happen (the memory drop) on other algorithms too using nicehash miner, including LYRA etc, so seems like im not mining to max on any coin. Hopefully nicehash miner gets updated with a fix for nvidia