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Board Mining (Altcoins)
Re: Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 11/07/2019, 15:53:30 UTC
Quote from: Johny101010 on July 11, 2019, 12:40:38 PM
Try2 has the voltages of a normal 470, non mining edition. I have a few of them so I changed the voltages to the ROM you sent me to match the other ones and moded the timing to ubermix.

So I tried to flash try1 and ATIFlash says "Cannot erase ROM".

Anyway, I now used PBE one-click on 193398.rom and flashed it.
On 1150/1950 it does 27Mh/s
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 11/07/2019, 07:55:26 UTC
Quote from: Johny101010 on July 11, 2019, 12:52:40 AM
So i think Saphire power gated their rom.
I think this one is the OG Rom:
https://megaupload.nz/dfPcTfy8n2/193398_rom

This is the modded OG rom

https://megaupload.nz/c3P0T8y0n3/try1_rom

And this is the non power gated modded rom by me. Be careful on this one as I can not be responsible for board damages from over powering.

https://megaupload.nz/b9P2Tfybn1/try2_rom


Let me know what happens. Im curios lol.


I actually found this one too. But I found 8 different BIOSes on techpowerup that had K4G41325FC (SAMSUNG) VRAM so I wasn't sure which is the right one.

If I understand correctly the modded OG rom is with ubermix 3.1 straps. And so is your modded rom. How are try1 and try2 different.

I will try them today in the afternoon.
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 10/07/2019, 11:10:06 UTC
Quote from: Johny101010 on July 09, 2019, 09:59:43 PM
Quote from: snowpix on July 09, 2019, 05:31:04 PM
The Mining edition of these cards don't have switchable bioses. I checked anyway, but they don't.

I tried downloading SRB Polaris V3.5, but it somehow doesn't work for me. Pimp my straps, strap editor and any other options don't work. I tried version 3.0 and that one works, but it doesn't have pimp my straps option.

After trying some other things I figured out, that the tool completely works for a different BIOS (from a RX580 8GB). Weird...

Just for curiosity, download the bid and upload them in here. Id like to see the actual file content myself and hopefully figure something out.

This is the BIOS that the cards came with.

https://mega.nz/#!bvwi3SBA!R6Lw3sLmm34GLYdAzN75znBnqsNaze0OFwb6NRW_PrQ
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 09/07/2019, 17:31:04 UTC
The Mining edition of these cards don't have switchable bioses. I checked anyway, but they don't.

I tried downloading SRB Polaris V3.5, but it somehow doesn't work for me. Pimp my straps, strap editor and any other options don't work. I tried version 3.0 and that one works, but it doesn't have pimp my straps option.

After trying some other things I figured out, that the tool completely works for a different BIOS (from a RX580 8GB). Weird...
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 08/07/2019, 13:39:52 UTC
Quote from: Xazax310 on July 07, 2019, 09:05:43 PM
Any reason you're not using Claymore's 14.7 with timing straps? or just use PBE? I have RX470 4Gbs (samsungs non-mining edition) and get 30mh~ with these with no errors 900/900mv @2000mhz

I tried but - strap doesn't work. Which drivers do u use?
Post
Topic
Board Mining (Altcoins)
Re: Hashrate RX 470
by
snowpix
on 08/07/2019, 08:38:18 UTC
Quote from: Johny101010 on July 08, 2019, 02:43:56 AM
Quote from: snowpix on July 07, 2019, 04:49:14 PM
Can anyone help me get higher hash rates?

I bought used Sapphire RX470 4GB mining edition cards and I don't have the original bios to mod it. With current bios and others that I have tried, the cards give cca 26Mh/s @ 1150/1850.

If I raise the mem clock above 1850 I get errors instantly. No matter the BIOS.

The cards have Samsung memory. I'm using win 10. Cards are overclocked with claymore miner.

Did u check if they are power gated at bios? Easiest way is to go + on voltage and raise memory accordingly.

I tested them with 1000mv on core and mem voltage so I don't think that could be the problem.
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 07/07/2019, 18:59:40 UTC
Quote from: 0xcosmos on July 07, 2019, 06:55:35 PM
backup the current bios
then modify that bios
copy 1500 memory strap to higher straps (1750,2000,2250,etc.)
and see if it increases your hash

Been there, done that.

I get to 1850 mem clock and 26.7 Mh/s. Anything above that, I get errors.
Post
Topic
Board Mining (Altcoins)
Topic OP
Sapphire RX470 4GB Mining Edition HELP
by
snowpix
on 07/07/2019, 17:18:13 UTC
Hi guys.

I just bought some used Sapphire RX470 4GB Mining edition GPUs (Samsung mem).

The problem is that I don't have their original BIOS. With the current bios i get 26Mh/s at 1150 core, 1850 mem clock. Anything over 1850MHz get instant errors, which is weird, since these cards should go above 2000MHz and above 29Mh/s.

Anyway, I'm wondering if there is a "universal" RX470 Samsung mem BIOS, that could get me better results, or if anyone is willing to share theirs if they have the same cards.

I am using Win 10 and I am using claymore miner to mine ETH and to overclock the cards.
Post
Topic
Board Mining (Altcoins)
Re: Hashrate RX 470
by
snowpix
on 07/07/2019, 16:49:14 UTC
Can anyone help me get higher hash rates?

I bought used Sapphire RX470 4GB mining edition cards and I don't have the original bios to mod it. With current bios and others that I have tried, the cards give cca 26Mh/s @ 1150/1850.

If I raise the mem clock above 1850 I get errors instantly. No matter the BIOS.

The cards have Samsung memory. I'm using win 10. Cards are overclocked with claymore miner.