Where do you mine?
I'm mining at blocksolved.com at the moment but my daily earning is lower than I have expected.
570 kh/s = 300k/day @blocksolved.com (= 12,5k/hour)
and only 200k/day @nut2pools.com (= 8,5k/hour)

When I calculate my estimated earnings with a calculator at the current block reward and current diff I should get about 500k (~ 20k/hour) and compared with your earnings at least 1/4, so 17,5k/hour.
How can this differ so widely?

BTW my hashrate is always shown 30-50% lower on the pool dashboard  than in my miner. Haven't seen more than 450kh/s on the dashboard for 2 days, mostly it shows about 250kh/s.

does your workstation have more then 12GB ram ?

Try taking one card out and see if it works, ie run with 2 cards and 8GB Ram.
not sure if your using windows, stick in a 8GB USB and readyboost it, or try and match system ram >= with the total ram of the VGA cards.

I know that a guy at work couldn't get microcoin miner to work on his box with 1 R9 290 and 4GB ram.

for some reason intensity on my 270x's means very little until u dip down under 12 or 13. I only lose like 4 kh per card when I drop from 18 to 17 and so on. As for Thread concurrency, this miner's settings are almost half what I us on cgminer (16,000 TC here and 28,000 TC on cgminer). I haven't had to change mine with Nfactor yet... -w should stay the same I believe, and I think 290 uses 512 bus width? The 280 is -w 384 I think, and my 270 is  -w 256  (works on 512 but probably counter productive to my card?) My only guess would be to drop thread concurrency in half and see if that helps, then work up from there to where it stops working. Also try using low intensity until you find problem (like 13 or so). I also have glitches sometimes, like when I go to start mining with my main card after gaming on it and mining on 2+3, it stays at a really low hash rate, like 1/10 of my other cards, until I restart my pc. Seems to only happen when I use my GPU for other purposes while mining. So first things first if it is a mining rig that's on constantly, try a restart. Good luck

8x 290!! I would have that setup too!   however just for curiosity could you put some photo about your mining rig? I'm very interested to know how is set up, it's very hot i suppose..and you have more than 3,5 kw of available electricity in your place, or do you have yor cards in a place that's not you home??

However with that setup you could be considered one of the first wales of MRC! wow!   (just kidding ay!)

Do you get 900 kh/s on all of your cards?

do you not scare mine this with 8x 290 ?) You can waste ******kWh, becouse this coin can be 0 prifit in future, we have great coin, but sux PR

my config

Ok mate, please read carefully all things written in post...just if you watch the screenshot you see i'm using the miner of the OP..i'm mining mrc since launch block and developer of one of the mrc faucet, so i should know this basic stuff. 

However still waiting for someone could help me for real.

and please read the posts before posting answers!

Hi guys, i started mining also with a laptop hp pavillion that was sitting there unused..cgminer works well, the videocard in an ATI 5000 series, catalyst and amd sdk installed properly, OS WIN7 as on the other mining rigs.

Now the issue i got it's quite stange because gpu is caught by the miner, it shows gpu 0 temperature and % fan speed. It also show an average hashrate o 1.3xx MH/s but the U parameter is steady at 0.00  ... so it's like the card it's not processing anything...

this is my bat file config: http://postimg.org/image/tc6gl0n81/


If anyone could help i can send a nice MRC tip to him!

Donation addresses added to signature and OP. Even small donations are appreciated

do any of you guys know what a 7950 should be running on scrypt jane... when micro 1st launched I was hitting 2.5mh/s is that good or could I have got like 4mh/s if optimized? anyone else mine in the begging with 7950's

Thanks - that worked, sending 1000 micro coin your way - cant believe I lost sleep over that :-)

New to this crypto mining, added a second R2 290, now bat file doesn't work - just a black screen when I run it. Can someone post an example on how to get their 2 x R9 290 or similar working, thanks.

I have search ybcminer on google for 2 card examples, but cant find any.

I am by no means an expert, but are you sure it's that low if you haven't measured it? 250w with full throttle just sounds too good to be true.