I really for the life of me can't figure out what the issue is.  I'm trying to set up the Red Dragon itself.  I copied the timings from 1500 to everything under it, yet it's still hashing at the same rate.  I even copied the 1750 to 2000 as well.  When I try to raise the memory clock up to 2100 it goes DOWN.  This is one ETH mining only.  Maybe I got a bum card?

I have a similar issue. With a Sapphire ITX RX470, I only get around 22 MH/s at stock speed and maybe 23 Mh/s with memory up to 2000. How much would other memory timings / BIOS mod affect the result? I've read about people getting up tp 30 Mh/s out of a RX470, is this also possible for RX570, and is this only becuase of the changed memory timings?!?

My reply was for the person that started the thread, but it may help others too.

Since I have a 7x rx470 rig (asus strix OC 4G), I can share some settings with you.

Did you made bios mod on the cards? (copy 1500 timings to all the boxes under 1500 in polaris bios?)
If yes, then the setting's I'm using on MSI afterburner are as follows:

Core Voltage: -96 (can't go -100)
Power Limit: -50 (ETH only mining) and +0 (for dual mining)
Temp Limit: 90
Core Clock: 1110
Memory Clock: 1950
Fan speed: Auto

I'm getting 27,8 Mhs for ETH only, and 20,1 Mhs ETH + 605 Mhs SIA (dual mining)

Hope you can replicate the setup and get your hashrate up

Got home and played around with things a little.  I started with the Red Devil card.  I verified that the straps were set correctly.  I was able to get 29 mh/s with this card by itself!  Core was at 1100, and memory at 2100.  Upping the memory to 2200 seemed to drop hashing down to 11?  

Then I moved onto the Red Dragon.  It looked like I missed changing the memory straps on this one.  After making the changes I tried mining with it alone and am only getting like 18 mh/s .  Looks like the memory is Hynix?  Is that the reason it hashed so low?

I might have to just sell the Red Dragon I guess and try to find another Red Devil.

ETA:  The Red Dragon seems to be all over the place with the hashing power.  It varies from 5 to 18.

I tried your suggestion and lowered the intensity for sia.  That seemed to help a little, but I'm not able to really get over 48=50 mh/s.  I've tried upping the memory clock, but I seem to get a BSOD when I push it up to 2200.  Anyone have other suggestions?  I'm currently mining just ETH, and still seeing the same hash rate.

Ok, nice, thank you! What is your opinion on gtx 1070? I heard this is
a very efficient gpu (electricity is very expensive in Germany , sth like .3$ )
Maybe you're more lucky with your electricity rate in NZ

Sure, I'm glad if I can help. But can I ask you for a little favor in exchange: Can you advise
me which GPUs and Coins are the best choice for this board? I had a little break from mining
so my knowledge is outdated

We have a group buy going on, based in Germany maybe your interested:
https://bitcointalk.org/index.php?topic=1942213.0
Shipping with DHL wpuld be possible for around 20 EUR.
(I'm not the organizer, but the organizer is a trusted member of the
german sub forum)

Do you guys not know that you can get these at www.newegg.com and pay with BTC. They are all very cheap with the rebates since they are going on clearance due to the RX 570/580. Why buy used when you can have brand new for the same price? I don't understand.

Here $139.99 BRAND SPANKING NEW

https://www.newegg.com/Product/Product.aspx?Item=N82E16814131705

i have 2 antminer S7's currently hosted @ Cryptoborea's (allinvain)

looking to sell both.

1 runs fine, however 2nd one has 1 dead board so only runs at half speed

pm me any offers.

sale will definitely be via ESCROW

looking to buy another S7

must be 100% working (4.7ths)

shipping to Canada: Quebec (H1S0A5)

pm me if your interested in selling, and include the price you want for it incl shipping