Quote from: JCR27 on March 03, 2014, 01:58:24 AM

Hi
I have (2) XFX R9 290X GPUs and I consistently get different (seems consistently different) Hash Rates:

Running: Windows 8.1 - 64 bit, CGMiner 3.5 with these settings:

--scrypt -o stratum+tcp://eu.coinmine.pw:1111 -u UN -p x --thread-concurrency 28500 -I 20 -w 512 --shaders 2048 --lookup-gap 2 --text-only --expiry 1 -s 1 --no-submit-stale --queue 0 --gpu-powertune 20 -g 1 --gpu-engine 936

Hash rates I get (pretty consistent):

GPU0 ~ 710 kH/s
GPU1 ~ 860 kH/s

Any suggestions for getting consistent (~860 kH/s) for both GPUs? Any suggestions for improved Hash Rate?

Thank You
Jim

Do you get the same result when you switch the 2 cards on the motherboard? Try to know which ram is used on the cards with the Tahiti mem tool.