hello guys,
i have this version of gpu
http://xfxforce.com/en-us/products/amd-radeon-rx-500-series/rx-570-rs-4gb-dd-blackedition-rx-570p4dbd6

it use 4gb memory EDW4032BAB and H5GC4H24AJ. In my case it uses elpida and not hynix. i used custom timings from this threat and pasted it into 1750/2000:
 
777000000000000022AA1C00315A5436A0550F15B68C1506004082007C041420CA8980A9020004C 01712262B612B3715

this is my custom bios settings:


this is my gpu Z


and hwinfo


my results in dual mining eth+lbs is 28,5 + 82 and my questions are:

- how much further i can go? using 2050 or 2025 mem is getting me mem errors in hw info...so is this maximum fort this memory?
- i can see in gpouz that VDDC power draw+VDDCI power draw is giving together  gpu power draw  value. how can this be changed? did i well to use stages in bios as above? does it have impact on these two values?
- what about only VDDC number? is 0.9313V good for 1200/2000? is possible to have less? my ASIC quality is 77%
- VRM Efficiency 99% is ok? or too high or almost perfect? im trying to udnerstand what i should achieve as best result as my gigabyte rx 580 XTR aourus 8GB is having 79% efficiency but ASIC quality is 83%

thank you

Dont know if something wrong here. before i use windows 7 and with that windows i can not use blockchain driver. At windows 7 with that timing i got around 890 h/s 70watt on GPUZ using claymore 10.2.
Since i really want to use blockchain driver, i change my windows to windows 10 but still got same h/s using claymore. And after that i check another miner software, and i got that result using zawawa gatelessgate with less watt.
I got the straps from ElioPV and then fixed by laik2, and after more refining with guide from laik2, i got the last straps that used here.

Okay, two things:

1. Do NOT use the Blockchain driver for XMR.

2. Use the following config : -ri 512 (or 504), -w 4, -g 2.
Report again whats your hashrate. You are using a lot lower than what is supposed to be.

Also, this gotta be some real crazy strap to run like that, or something is not right. I am doing 900h/s at 1305mhz Core/2000Mem and 867h/s at 1225core/2000mem, and its not the best one, but 1kh/s is insane. Also, is that strap shareable?

Either you are running it differently, either something is wrong.

896 w8 g2 makes the cards barely hashing, like 50h/s or 400h/s.

896 w8 makes them to hash with 100h/s less than normal.

Anyway, for some reason, the blockchain driver on my 470 and 480 give ~20h/s LESS and it increases the power consumption.

Go figure.

What GPU that you use? And can you try sgminer or gatelessgate?
After I check it for few days at pool, the hashrate really increase.

sgminer-gm 5-5-5, Windows 10, 17.2.1 drivers, RX470 XFX single fan 1225c/2000m ; RX480 Sapphire Nitro+, 1305c/2000m.
Using on both ri 512, w4 g2 and getting 470 = 867h/s, 480 = 900h/s.

The blockchain driver is useless for me for XMR, tried it like 3 different times with DDU, each time i was getting less hash for more power draw.

Also, @doktor83, i will fiddle with this today again, i will install a 580 as well.

BTW, my cards are using Hynix (the 470 and 480), which are running the public strap from this thread, but modified a bit more.

896 w8 g2 is the best you can get for 470/480/570/580

and yes, he has some nice straps.
and yes, you can use blockchain drivers for xmr, i get 925mhs on 1130/2000 with sapphire nitro+ 570 4gb

Okay, i havent seen any Elpida straps for XMR here actually.

Got a 580 4GB Gaming X with Elpida. Did some mixed Samsung/Hynix/Elpida, getting at 1355c/2000m 948h/s.

But, for some reason, even after relaxing the timings, going to 2100Mhz BSODs me instantly with Thread_STUCK.

Thats with TRC=64 and TCL=22.

Is there difference in the timings for the 5xx series, specifically for the

TCRCRL, TFAW/32, ACTRD/WR, RASMACT, RP, WRPLUSRP and BUS_TURN?

Those are the only values, that i didnt bother raising any further from the Samsung/Hynix ones.

Oh, and also, TCKE = 10, which is less than the RX 470 and 480.

Everything else looks completely normal to me.