[Question] RX570 Nitro+ mining 20mh/s with BIOS mod

[simon66]

So I've been trying to mine Ethereum with a RX570 8GB Nitro+(Hynix) and for some odd reason I can't get it to mine more than 20mh/s

My Spec:

Windows 7 Home Premium
Claymore 9.8
Crimson Relive (lastest one) + leaked DAG fix
BIOS mod (strap 1750 to 2250)

I clocked my GPU to 1300 and mem to 2100 (Anything over than that gives me a lot of errors on hwinfo).

How are people able to get 30 mh/s yet this card is only able to get 20 mh/s?

Any help?

Thanks!

[1715339842]

1715339842

[Vann]

The 1750 MHz timing strap mod is only for cards with Samsung memory. I have a Nitro+ RX 570 4GB card with Hynix memory. I copied the 1500 MHz strap to the higher timings and get ~29 MH/s UBQ and 760 MH/s DCR dual mining. I use an overclock of 1150 MHz core clock 2075 MHz memory clock with a -96 mv undervolt and -10% power limit in Afterburner.

[simon66]

The 1750 MHz timing strap mod is only for cards with Samsung memory. I have a Nitro+ RX 570 4GB card with Hynix memory. I copied the 1500 MHz strap to the higher timings and get ~29 MH/s UBQ and 760 MH/s DCR dual mining. I use an overclock of 1150 MHz core clock 2075 MHz memory clock with a -96 mv undervolt and -10% power limit in Afterburner.

Hum... I tried flashing 1500 strap to the higher timings (even 2250) but when I OC my mem to 2000 on AB, the system crashes. Don't think it worked :S

[Vann]

The 1750 MHz timing strap mod is only for cards with Samsung memory. I have a Nitro+ RX 570 4GB card with Hynix memory. I copied the 1500 MHz strap to the higher timings and get ~29 MH/s UBQ and 760 MH/s DCR dual mining. I use an overclock of 1150 MHz core clock 2075 MHz memory clock with a -96 mv undervolt and -10% power limit in Afterburner.

Hum... I tried flashing 1500 strap to the higher timings (even 2250) but when I OC my mem to 2000 on AB, the system crashes. Don't think it worked :S

If your cards has two sets of memory timings you need to copy the 1500 MHz timing from both sets. Use 1:1500 strap to replace all the higher frequency 1: straps and the 2:1500 to all the 2: higher frequency straps.

[simon66]

The 1750 MHz timing strap mod is only for cards with Samsung memory. I have a Nitro+ RX 570 4GB card with Hynix memory. I copied the 1500 MHz strap to the higher timings and get ~29 MH/s UBQ and 760 MH/s DCR dual mining. I use an overclock of 1150 MHz core clock 2075 MHz memory clock with a -96 mv undervolt and -10% power limit in Afterburner.

Hum... I tried flashing 1500 strap to the higher timings (even 2250) but when I OC my mem to 2000 on AB, the system crashes. Don't think it worked :S

If your cards has two sets of memory timings you need to copy the 1500 MHz timing from both sets. Use 1:1500 strap to replace all the higher frequency 1: straps and the 2:1500 to all the 2: higher frequency straps.

My card only has 1 set of memory timing.
Here's my Original BIOS:

https://www.dropbox.com/s/t6zekfi7b2cdu0j/Original_RX570_8GB_Nitro_Plus_Hynix.rom?dl=0

[Branko]

The 1750 MHz timing strap mod is only for cards with Samsung memory. I have a Nitro+ RX 570 4GB card with Hynix memory. I copied the 1500 MHz strap to the higher timings and get ~29 MH/s UBQ and 760 MH/s DCR dual mining. I use an overclock of 1150 MHz core clock 2075 MHz memory clock with a -96 mv undervolt and -10% power limit in Afterburner.

nonsense

1750 should work as well, too, except 1500 should give somewhat better results. However, many Hynix chips can't stand it

[syraka76]

I also have the same problem with the same 570 8gb nitro + card, I can not exceed 24 / 25mhs, I tried everything, timing 1500,1625,1700,2000 etc ...,
Hynix memory, windows 10 pro operating system

[bearsworth]

I am getting 26 mh/s with these cards and same memory. I don't quite remeber what I did but would be willing to help for a small tip since its my time.

[Branko]

Good photo of memory chips would be helpful

[simon66]

Good photo of memory chips would be helpful

I would if it didn't void my warranty.


=== Update ===

Looks like the 570 is just plain crap. I replaced it with a 580 4gb, did a bios mod and bam! 27 mh/s (Without tweaking). Time to tweak and see if I can get 30 mh/s.

tl;dr; Don't buy RX570's. Unless you land a Samsung or have the patience to tweak your card.


Thanks everyone for the help
I've struggled 5 days with this card trying to figure a way to increase performance.

[Souran]

Had the same issue with 8GB Hynix models till I found this post:
https://www.reddit.com/r/EtherMining/comments/6erzbx/my_305_mhs_hynix_memory_settings/

Used the same timings posted there, and I am able to do ~30/850 ethdcr on all my 570 nitro+ 8gb hynix

Also this issue was only present with the 256kb hynix bios,, the cards with 512kb hynix bios worked fine with just copying memory straps

[Vann]

The 1750 MHz timing strap mod is only for cards with Samsung memory. I have a Nitro+ RX 570 4GB card with Hynix memory. I copied the 1500 MHz strap to the higher timings and get ~29 MH/s UBQ and 760 MH/s DCR dual mining. I use an overclock of 1150 MHz core clock 2075 MHz memory clock with a -96 mv undervolt and -10% power limit in Afterburner.

nonsense

1750 should work as well, too, except 1500 should give somewhat better results. However, many Hynix chips can't stand it

That must be your Hynix VRAM. All my RX 570/580 Hynix memory cards, 7 in total from Sapphire and Powercolor have a simple 1500 MHz strap mod and all get at least 28.5 MH/s.