Quote from: semajjames on July 31, 2015, 08:11:45 PM

Quote from: MehZhure on July 31, 2015, 10:51:16 AM

That is a bit of a bummer about the drop in profitability. That said, it isn't all bad, at least for me. This drop in profitability spurred me to switch back to xpool and do some further tweaking of my settings to try and drive up my profitability. And wow. Some of the stuff I have learned over the past few days, reading and experimenting, has helped significantly.

As of right now, my 290 has been staying at, or below, 64C. The vrm is staying at about 73C (well below the 90C I have seen in the past). And the avg power draw is currently 172W. I am showing a > 9,6 Mh/s in the sgminer display, but xpool is reporting my accepted avg hash rate to be 10.2 Mh/s. I honestly did not think this was possible with a single r9 290. Oh, and no HW errors, and 0.9% rejection over the last hour...since I started up with these most recent settings.

Looking forward to seeing what I can manage to attain with the 290x.

I don;t get this :- you are getting 9.6M with a r9 290 on a dev sgminer at xpool

but you only get 64% at Dashminer

What kernel are you using with the dev sgminer at xpool ?

EDIT I'm getting 80% at Dashminer with an old hot r9 290

He is actually getting 111.8%, please re-read his latest post:

Quote from: MehZhure on July 30, 2015, 01:33:31 PM

I did some further tweaking to see what kind of speed I could safely get out of a single r9 290. So far it isn't too bad. I had to run a bit slow for a couple hours, and thought I would just see about pushing it to make up for lost time.

taking my avg stats over the last 50 mins (since I started tweaking the settings for speed, I am turning up an avg rate of 111.8%. The actual interesting part is my temps. The gpu is staying at or below 70C, and the vrms are staying at 90C. The power usage is 209.7W. So, a 16% increase over stock settings with only 8 W more power usage.

It will be interesting to see what I get from the 290x when it arrives.

But to be honest, I don't understand how this is possible. Perhaps you can share more details? Brand of the card, operating system, driver...
Maybe it is already R9 290X? :-)

I have Sapphire R9 290 TriX and that's a reference 100%. But somehow your R9 290 is 11.8% faster. ?!

This same card only does 7.68 MHS on Wolf0 miner. So your 9.6mhs is also quite an achievement!

Quote

EDIT I'm getting 80% at Dashminer with an old hot r9 290

Something is wrong with your settings. Should be at least 95%.
R9 280X is about 85%.