I get 0 h/s with my RX580

and SRB
I don't have any idea ..

Claymore, Claymore, Claymore

I LIKE CLAYMORE--
It is like an old, comfortable shoe, runs very reliably, and can be tweaked with the right drivers.
BUT,
my 1080ti gets 1990H/s with XMRv8 using XMR-Stak. My old i7 2600 CPU went to 230H/s vs. 90-110 H/s on XMRv7. EDIT: After a reboot, I noticed my CPU was performing at the same old speed, and that my 1080ti was performing at about 980H/s I have not figured out just why, yet. Pool speed matches better than when I had the erroneous readout at the console.
I'd rather run Claymore, it has built-in watchdog and monitoring. XMR-Stak is not easy to tweak, but somehow, it runs
like crazy ok on my 1080ti. My old 750ti cards perform about the same, XMR, XMRv7, XMRv8. --scryptr
P.S. Too good to be true!

--scryptr