Had some time and did some testing with these Tahiti GPU.

Basically XMR-Stak seems to work. The version I used is XMR Aeon Stak 2.5.2 and I found the link in Mattthev signature.

If you got the 7970/280X use intensity 920 and you should get at least 500Hs and up to 550Hs depending on how high your core/engine clock is set. At 1000/1500 you should get close to 500Hs and the GPU shouldn't consume much electricity, around 130Watts or so.

With 7950 with 28 Compute units you will need to lower the intensity a little bit and your speed will be slightly lower.

If you are getting incorrect shares, you will need to lower your memory clock.

Putting these numbers into What to mine with 10 cent power results in a total net profit of nothing. So if you are a die hard hodler or got free or cheaper power, you can mine XMR but for most i think it's time to pack up these GPUs.

To get such a big profit in such a short period of time, you need to pay attention to investing in ICO projects. Or invest in Cardano and similar projects.

have a look at OPEN platform, they are giving a 2:1 bonus on token swap

Good to see it works great!
I am planning to upgrade to Adrenaline 18.5.2 and Claymore 11.8, but I have doubts that there could be no significant hash rate bumps.
Do your hash rate increase or it remains the same?

better GPU temperature between 60-70°C, you can put an additional fan to keep the temperature stable, almost all my rigs are AMD cards and used to mine in ETH from one year ago though for now isn't a good condition to start mining.

This series I have:
■ R9 series started from 290, this series has hungry power consumption
■ RX series started from 480, 580
■ Vega

Thanks for the encouragement! From the looks of things around here most people are hostile to new miners. While I know I missed the boat so to speak, I am only doing it as a hobby, and as you said I can game with the cards as well.

I am looking to put them in a open air frame though, as running inside my PC case is quite warm even with extra fans. Does anyone else run their gaming PC in an open air design, or run a dual gaming mining rig?

There are lot of candidates for 5x. Of course it requiares to hold them for several months.
I bought some coins 5 moths ago and most of them gave me 5x return.

Still seems pretty competitive -- very much so on my CPUs (I've got more power in CPUs than AMD GPUs).

Gonna give it a shot for a bit... I noticed today the diff has actually decreased so maybe the initial flood of AMD GPUs has run it's course for the time being.

I have 20 rigs , I put half on nicehash crypto v7 and the rest on nanopool

unfortunately the stats on both pools are are still messed up, it seems there are two forks now

the old fork with asic still on it has pretty much thw same diff which is strange

the new for has like only 20 percent of the old hash rate , there is no way that asics and bots were 80
percent of the global hash.

either way things should be interesting next 8 hrs

Don't know really, hard to be optimistic when bear is so strong. I guess one unknown for sure. probably this year ETH will beat BTC.

It is acceptable but 22 incorrect is about 4%. You would have a higher profit slowing the cards down and eliminating those errors. A 29mhs card with 0% errors has higher profit than a 30mhs card with 4% errors.

I'd start with lowering each mclock by just 20Mhz and see if that clears up the error rate.

Of my 17 cards I tolerate an incorrect shares rate of 1% on one card that I can't shake no matter what timings I use and 0.5% on 2 others. The rest can all go weeks without an incorrect share.

Interesting options, but i guess i'll wait for the 2000 series, as it's just around the corner. Hopefully can get my hands on a few of those, if they'll have a fair price/performance.
Still it's good that we get more variants, since everybody struggles with GPU shortages. We'll see if these mining cards actually hit the store shelves

I guess it would be a problem if Iceland's Energy Authority starts prioritizing mining more Bitcoins rather than serving their people by providing ample energy for their homes; but I guess they all have it figured out. I just hope that equal amount of energy is given to the other aspects that needs such amount of energy to function as to not cause any trouble or chaos with regards to the distribution of energy.

I used to say you don't need 8GB of RAM.  Now that I have been running 4 rigs with 8GB of RAM for a week, I realize why people do it.  The system just runs that much more stable.  Things don't seem as laggy when I'm remoted in from another location either.

If you can spend a little more and get a Pentium CPU, I would do that too.  I paid $40usd for my Celeron ... I think the Pentium was $52.  It's not that much more money.

I have found v10.1 version to be highly unstable.
Every day i get all GPU complete failure (all 4 gpu lost by system) I even lowered OC that on 9.8 could work for 3 weeks with no fails.

Now using v10. at the moment it has been 2 days. and it seems to be ok, well better than 10.1

This is nice, with big investor coming, and wider adoption, bitcoin will skyrocket...

In single mode - no, until we have new miner or driver with promised 50+ mhs.
In dual mode - maybe ... but again ... current buggy blockchain drivers won't let you downvolt to 800mV keeping good speed ... so I think currently polaris cards are better even in dual mode.
see: vega is 43eth+220lbc@300watt. Good polaris can do 30eth+90lbc with 130-150watt
 

i dont understand what you mean by mixing and matching nano and 480, but as i have said i will repeat myself:

Nanos + blockchain drivers works in ASM mode for ethereum but dont work for zcash
Nanos + older drivers works both ways

And since you metioned 480

480 + blockchain drivers dont work on eth with ASM on but on older drivers it works fine..

I have machines with both types of cards (and cards are not mixed they are separated)

Just a question I don't know. Is the Bitcoin a digital currency or a digital good?

It is single mode.
Dual mode needs more voltage to be stable and consumes 280-300watt. it is 43eth+220lbc
It is with blockchain drivers.
With 17.8.2 I was getting 41+200 at 240-260 watt
It was with win 7. With win10 and 17.8.2 I was getting only 38+200 (((

Need some time for further tuning ... but only when my air Vega will arrive.