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Mining rig crashing with rx5700 xt sapphire

Thnaks for the tip, it is in my queue of settings to be tested :slight_smile: Just one question: why do you specify the eth_config to be the B608? I thought this was a “random” number as I get different ones (eg. B564, B623, B576). Does this termination matters or only being Bxxx is enough?

I tried 1350 / 750 / 800 /1320 / 910 and got an uptime of 1 day 12 hours, which for me is a big improvement. I’ll try your settings (1280 750/800/1320 910 ) to see if improves a bit. If not, then I’ll give a shot at Claudio_Fresta settings :slight_smile:

Bxxx is not a random number but a TRM setting. It tell TRM how to deal with your card.

I will keep an eye on them! Maybe they are the key to this :smiley: I’ll report back soon some results regarding this :slight_smile: did you tried the B608 value?

Guys I answer everyone like that with facts and pictures.
Hi everyone.

Guys to get these results you have to modify your current GPU bios!
Open the bios with Igorlab’s Red Bios Editor go to VRAM Timings click on 1550 or 1500 change both bios and
for samsung than for micron.
A new page will open, you have to double the value you find in the DRAMTiming13 box in my case 2945
I double it x2 and it becomes 5890 and hit ok.
At this point, delete all straps strings greater than 1500 or 1550 and copy the strap of 1550 or 1500 in
1750-1800-1875-2000 MHz etc. etc. in both Memory Types and save the new bios created.
At this point you just have to flash the new bios.
Fix the overclocks shown above in Hive os and that’s it
Maximum efficiency MH / s Vs Watt.
Good job everyone.
red bios editor

Hi, I got my power down a little with your settings, but can’t use B608, not enough memory? I got 8gb 5700,s and one XT, but they use B576. Any idea?


The last two cards are 580 8gbs.

When you specify a higher value than supported, your GPU automatically thanks the highest value supported. From the images, I don’t see any XT… which #gpu it is?

Thanks for sharing! I’ve done that mod but seems that Pulse model is very sensitive to B-mode value vs OC. I’m trying to figure out which is the optimal values for it!

Gpu 0 is a shappire 5700XT with 5700 bios and 1,2,3 are 5700s.

Ciao.Se non hai il bios modificato come ho detto sopra ti conviene inserire la modalita A
A-Mode 1400 @ 725mV, Mem 912 MHz --eth_config=A620

Do you also used MorePowerTools to mod your bios, or only RBE ?

Made these small changes for mine and much more stable …
Then you know each gpu is different … From this base you have tried some small changes to optimize your rig.
We all know that from one gpu to another everything can change.
Good job everyone.

1 Like

I didn’t use MorePowerTool because I changed the already modified bios of igorlab and that was already set with modification via MorePowerYTool to 725 725 180 so I only changed the x2 parameter that I told you before.
I advise you if you already have the igorlab bios mod on your gpu to make the change directly in the one there!

Yes, I already have all my bios modded like IgorLab said. I also used the AppleStrap for timings rather than copy/paste the 1500 parameters. Do you used the AppleStrap or did you copy/paste the original 1500 settings ?
I’ll give a try. Thank

I don’t know what AppleStrap is honestly!
From the already modified bios of igorlab I changed the 2x parameter and I copied from 1500 or 1550 to all the higher ones in both memory types.

AppleStraps are settings for Memories that you can use with RBE. These settings came from Apple because they use RX5700XT on there high end computer (MacPro).
These settings where provided per IgorLab and they state that they are better than the Sapphire settings.
Apple seem to have done great job for finding good settings that are efficient

Here the AppleStrap settings :

  • K4Z80325BC (Samsung GDDR6)

1000 MHz - 000000005E0C000000000000DA08000040000000101E0F092D000F0004040002100000000606060010000000110806000000010101000101001718003C0F00000A0A000078000000780000004A5156023C0000000C000A0A0F0400011F2A0C00780000004AF3130F7800000000000000

1250 MHz - 000000007E000000000000006A090000400200001426130D3900130006060002140000000607070014000000218A06000000010101000101001B18000B1300000D0D000096000000960000004D5166024B0000000C000A0D130400011F2A0C00960000000AF4130F9600000000000000

1550 MHz - 000000000F040000000000007A09000040030000162D170F4400170006060002180000000708080018000000210C07000000010101000101001C18009D1700000F0F0000B4000000B40000004F5178025A0000000C000A0F150500011F2A0C00B4000000CBF4130FB400000000000000

1800 MHz - 000000000F040000000000007A09000040030000162D170F4400170006060002180000000708080018000000210C07000000010101000101001C18006C1B00000F0F0000B4000000B40000004F5178025A0000000C000A0F150500011F2A0C00B4000000CBF4130FB400000000000000

2000 MHz - 000000001F080000000000000A0900004003000018341B114E001A000808000220000000070909001C000000218E07000000010101000101001E1800781E000012120000D2000000D200000052518602690000000C000A12170500011F2A0C00D20000008BF5130FD200000000000000

2250 MHz - 00000000280C0000000000001A090000400300001A3C1F135A001E000808000220000000080A0A0020000000211008000000010101000101001F18004722000014140000F0000000F000000054519802780000000C000A14190600011F2A0C00F00000004CF6130FF000000000000000

  • MT61K256M32 (Micron GDDR6)

1000 MHz - 40060000550C0000000000004A090000400000000F19110B28000F00040400020C0000000506060010000000218A05000000010101000101001718003C0F00000A0A000078000000780000008A204C02320000000A00040A0E0300011F2A0C006E000000C2F2130F6E00000000000000

1250 MHz - 0008000065000000000000005A090000400200001120150F33001300060600020C0000000507070014000000210C06000000010101000101001918000B1300000A0A000096000000960000008A205C02400000000A00040A100300011F2A0C008A00000082F3130F8A00000000000000

1550 MHz - 800900007D040000000000006A09000040020000142619133D00170006060002100000000508080018000000218E06000000010101000101001C18009D1700000A0A0000B4000000B40000008A206C024C0000000A00040A130300011F2A0C00A500000002F4130FA500000000000000

1750 MHz - 800900007D040000000000006A09000040020000142619133D00170006060002100000000508080018000000218E06000000010101000101001C1800A91A00000A0A0000B4000000B40000008A206C024C0000000A00040A130300011F2A0C00B400000002F4130FB400000000000000

1800 MHz - 000B00000D08000000000000EA09000040030000162C1D1747001B000808000210000000050909001C000000319006000000010101000101001E18006C1B00000A0A0000D2000000D20000008A207C02580000000A00040A150300011F2A0C00D2000000C2F4130FD200000000000000

1875 MHz - 000B00000D08000000000000EA09000040030000162C1D1747001B000808000210000000050909001C000000319006000000010101000101001E1800931C00000A0A0000D2000000D20000008A207C02580000000A00040A150300011F2A0C00D2000000C2F4130FD200000000000000

2000 MHz - C00B0000150A000000000000FA09000040030000172F1F194C001D000808000214000000050A0A001E000000311207000000010101000101001F1800781E00000A0A0000E1000000E10000008A2084025E0000000A00040A160300011F2A0C00E100000002F5130FE100000000000000

Are these 100 x 100 safe ??? Do you have these?
Let’s do this since you already have this bios modify this with VramTiming 13 doubling the value that comes out and then kindly you could post the results here so I understand better if it’s worth trying it or not.
Thank you very much in advance, very kind.

Another question, sorry.
But are these settings of stock bios or already modified to do more MH / s like the modification of igorlab?
I wonder why in case just copy paste and change only the 2x parameter and see how it behaves.

Could you send me the bios x the sapphire rx 5700 xt nitro + oc already ready with these parameters that you wrote here of AppleStraps x Favor.
Thanks Do I email you or do you share it via google drive? what do you prefer.