Quote from: ddd1 on December 20, 2013, 12:18:36 PM

Quote from: SimonG on December 20, 2013, 12:11:54 PM

What coin are we currently mining? I came home today and my 280X cards were only pushing 500 kH/s instead of normally 700-750 kh/s. Something must be wrong I think cause now when I've restarted cgminer its back to 700 kh/s again but slowly dropping down. This happens on both EU and US server.

Code:

cgminer.exe --scrypt -o stratum+tcp://eu.middlecoin.com:3333 -u 12H4mX2JoPUFkTTbWHadDkCfs9CrETkpnD -p x --thread-concurrency 11200 -g 2 -I 13 -w 256 --auto-fan --gpu-fan 30-100 --temp-cutoff 85 --temp-overheat 80 --temp-target 72 --gpu-memclock 1500 --gpu-engine 1080 --gpu-powertune -20

I have a 750 w PSU and 2xAsus 280x TOP OC.

are we supposed to run much lower intensity and thread concurrency compared to litecoins?
I mined litecoins with 7950: I20 and thread-concurrency 21000

I'm trying out the middlecoin pool, is I20 and thread concurrency 29000 too high for R9 290?

280s are effectively 7970s; which run optimally on I=13

You will need to do research on your own card as to what performs better for you.