Topic: [GUIDE][TUTORIAL][XMR,ETH]How To Mod Bios RX470/570/480/580 VEGA Mining 💰⛏ - page 31. (Read 220957 times)

RX 570 all the way. RX 460 I don't like them, but yeah you can try it I think the released Hynix timing should work with that, not sure if you have Micron how it will work.

There's definitely a learning curve, but once you understand how to do it, you can just set it and forget it.


https://forum.ethereum.org/discussion/12970/undervolting-through-hex-editor-simplemining

He doesn't explain how to fix the table pointers after you delete the extra bytes from the padding, but gupsterg @ overclock.net has a video for that here:

http://www.overclock.net/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/#post_25860237

There's some more info in this thread too:

http://www.overclock.net/t/1605757/vrmtool-a-simple-tool-to-read-and-write-to-i2c-vrm-controllers/

Ciao Hello Matthev ... First thank you for publishing this information!
I have two old RX-460 OC 2G Sapphire dual fans, unlocked, I thought of upgrading the BIOS and using the one of the RX-560 and optimizing the BIOS for mining. Do you think it is possible and above all it makes sense?
I'm currently down to 320 h / s in cryptonight sgminer-5.5.5.

I also have an unmodified 4G Sapphire RX-570 that mines at 590 h / s sgminer-5.5.5
Does it make sense to try to modify the BIOS here too?



Italian post!------------------------

Hello Ciao Mattthev  ... Innanzi tutto grazie per aver pubblicato queste informazioni!
Io ho due vecchie RX-460 OC 2G Sapphire dual fan, sbloccate,   pensavo di fare un upgrade del BIOS e usare quello delle RX-560  e ottimizzare il BIOS per il mining. Pensi sia possibile e soprattuto ha senso?
Attualmente sto minando a 320 h/s in cryptonight sgminer-5.5.5.  

Ho anche una RX-570 pulse 4G Sapphire non modificata che mina a  590 h/s  sgminer-5.5.5
Anche qui ha senso provare a modificare il BIOS?

could anyone report the consumption of vega 56/64
and income?

didn't find it.
would you mind to share a link to this?
thanks

You are like random tech words generator...

Let's do some math. Stock RX 470 doing like 20MH/s, with modded bios you can have more than 30MH/s so that's 50% improvement in gains, considering you will also undervolt and save electricity costs, let's start easy with 125W stock and 100W modded that's saving 20% on costs.

I mean all this hell of modding bioses, patching drivers, undervolting, memory types, power limits, fine tuning all this shit, endless bugs... considering all these things constantly changing... and all of this to get at most 30% more profit from mining.

Wolf0 I could scratch you behind the ear till your hind leg shakes. That post on the Ethereum forums about how to apply a global voltage offset in the BIOS for Sapphire cards was what I needed.

Wut?

All this Sodom and Gomorrah for 30% more profit... no, thank you very much!

 

You know that's BS right?

I have yet to see a GPU straight out of the box that hashes 30Mh.

Undervolting shouldn't directly affect hash rates. It would either give you a black/blue screen or crash your rig instantly. Fluctuating hash rates are the effect of improper/over OC.

And if you think your 75C cards would magically come down to 60C once you've put them in an open-air frame, you're mistaken. Best they would do is drop it down to 72-70 - but that's still one hell of a temperature. Dial in your undervolt and you'll drop it down to 62-65C.

has anyone seen an update on xmr-stak yet? I just don't see a download version or am I blind?

https://github.com/fireice-uk/xmr-stak-cpu/releases/tag/final

OK, so Amazon decided to send me 4 RX580 that I ordered back in july/august
Since then I built only nVidia mining rigs, but now I decided to give it a go with RX 580s, but it is completely new territory for me...

For now, I got 2 XFX RX580 GTS 8Gb XXX editions, one with Samsung and one with Hynix memory.

The cards have a small microswitch for dual BIOS, so I switched to the so called mining BIOS. The thing is I'm not exactly happy with the card's performance, as I understand they should hit 30 Mh/s easily while solo mining with Claymore

Here are the facts:
- I installed the latest radeon drivers, and made sure that it was set to compute workload (I'm using Win10 and Claymore 10.1 btw.)
- I didn't update the BIOS yet, since they are supposed to have Mining BIOSes already (As advertised by XFX)
- The one equipped with Samsung RAM can reach 30Mh/s with heavy OC (1250/2230, and no undervolt). Undervolting to 925mV in MSI AB drops performance to 28,5Mh/s)
- Hynix card is even worse, around 27Mh/s and setting power limit or voltage in MSI AB doesn't seem to have any effect, it stays above 1000mV (1150/2200).
- I checked the BIOS of the card with SAMSUNG RAM, and it has the same strap for 1750 and 2000 so I don't know how could I finetune the memory timings
- Right now the 2 GPU's are in my gaming PC, the top one is getting pretty hot around 75 celsius (this won't be a problem once I move the cards to an open air rig.)

Any suggestions/tips would be welcome

find better strap or bios?

what must i do for better result

Pretty nice guide. I will add it.

For the sake of anyone reading this later, the reddit guide has been superseded by this:

https://vegamining.blogspot.co.uk/

That is not my work, and it is not the definitive Vega guide, but it is close.  I think UK blogspot/circusdad does a better job explaining OverDriveNTool, and its associated .ini file and how this all relates to SoftPowerPlay mods.

And he explains how to automate several steps into one .bat file.  And if you look into Windows tasksch[eduler], you can automate the whole process on reboot.

The UK blogspot guide is a bit terse about reducing power draw, but once you understand that you can edit the OverDriveNTool .ini profile or profiles, without  having to make permanent changes to your SoftPowerPlay mod, you are well on your way.

Editing the one line in the "StartMining" example .bat file (point it to your Start-Cast .bat file) allows this to be applied to Cast, though the tutorial is focused on XMR-STAK.

Yes, I have that in mind! And I think so, but why this is offered as a solution?
That's why I said, that I was confused and asked for a guide to installing these drivers. And you said that I can not install them

What do you exactly do with PCs? Sure, you can install them both but to different cards obviously, I don't see any advantage of doing this.

Nope.. I got installed AB, but it is closed while i do it in Overdrive..