Only use this with RX470s with HYNIX VRAM! do NOT use this with ELPIDA VRAM. ... DIY How to modify your Bios, overclock your memory, downclock and downvolt/undervolt your GPU to get 29 MH/s @100+ Watts or 28 MH/s @ 70+ Watts Sapphire Nitro+ RX470 4G Bios Mod for Ethereum Mining AMD Radeon Polaris.. Using some of the values from Boysies Rom.
This is specifically for the AMD Radeon Sapphire Nitro+ OC RX470.
Should also boost mining rate for other alt coins like LBRY and Monero
- AMD 16.9.2 drivers
- Sapphire Trixx:
- AMD 16.9.2 drivers
Get Sapphire Trixx Here:
Get Atiwinflash here:
Get Polaris Bios Editor here:
Get your Ledger Wallet Nano S or Blue here:
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I hope you liked this video and found it helpful, if you would like to leave me a tip please send any amount of coins to any of the following addresses:
Thank u sir. But what about gpu memory error in hwinfo. As we increase memory clock above 1900 or 2000mhz gpu memory error started increasing. Most of the people say it should be zero.so what about that. Can we ignore that gpu memory error? Does that have bad affect on gpu? Or we get no share in ethereum mining? Plz answer
How much does this shorten the life of Card ? Is this big pressure for card ? Cuz mine does not have a warranty but i want it to mine at best hash rate i can get. Or should i switch coin. I wanna mine eth.. For now. All answers welcome.
I hereby request a VBIOS rom for the following graphics card.
Model: RX 580 Nitro+
Memory size: 8GB
Memory manufacturer: Hynix
Custom settings: Want higher hashrate for XMR or Zcash if any other Cryptocurrency mining.
Hi Cryptomined, after editing the rom and flashing the card, you then tweak additional settings with Trixx, can you not take those values that you tested with Trix and put them in polaris and flash the rom again, giving you the card at peak independent of any OS etc?
Nice work on your videos! Thanks!
Great Videos! I was wondering out of the brands you have played with, which is your favorite 470 and 480? Stock is low in many places and cost on the 480 sometimes is a lot higher. I would want to run of course the highest hash rate and getting around that 70w power would be great. Thanks! I know that trixx app looks pretty cool, but don't want that to be the deciding factor.
i have rx 470 4gb elpida red dragon power color 17.1.1 drvr, , i already overclock my croe clock to 1174, but after claymore creating and setting the DAG, its decrease to 850-900mhz, any one have the solution? :(
Hi I did the BIOS mod and had it mining and then I started messing w/ OC of the memory and the screen went black. Tried reseating GPU, different cables, etc. but no video signal to monitor. Swapped out GPUs and the new one works so the PCI slot is fine. Did I fry my GPU?? It was only a week old!! FML. Let me know what you think.
Ethereum has no value for the simple reason that there is no limits on the number that can be produced, Bitcoin has a limit of 21 million and is impossible to mine more than that.
The best crypto to buy now is IOTA, it as no transaction fees like bitcoin and ether and the transactions are fast because it is not based on the blockchain.
Want a good crypto to invest ? IOTA is the best for many reasons.
Hey I am now building a rig off 6 gpus and I did exactly your guide. It runned stable at 1250/2000. some needed to run a bit lower and 2 can run 2050.
But when I do like gpu clock 1050/1950 or 2000+ 1 or more off the gpus are crashing and it stops mining after a while. Do 1 off the gpus then got a very bad asic or doing something wrong? It does not really show the reason so it can by a lot off reasons.
Also I can't get the wattage lower then 105 watt. Maybe some off the trixx fuctions not working? Edit: I mean I can get it down a bit but not the same as your video.
Problem with that is even with 5 gpus the psu off 1000 watts is running at its max. So really wanna get the watts down so I can add a 6th.
I have the same sapphire nitro+ oc hynix as you got.
Now gonna experiment again in a few minutes. Any tips you can give me?
Update: got it stable mining at 1150 / 1950 think can go 2000+ to. But the wattage is not lowering yet its mining at 103 watts. so gonna try a other bios and trying msi afterburner.
Update2: All that had no effect running at 0mv is 133 watts and -100mv = 103 watts. I am missing something or is this as low I can go?
My GPU-Z does not show the 3rd Asic Quality tab. I only just installed the program so I should have the latest version. Have they taken this feature away or do I need to do something to make it appear? Many thanks
will try this out
have questions for you: i notice when you power your system you use like wired button plugged to an usb ??
and can i use my cpu( A10 7850) as video output ?!
Can i use an wifi usb adapter to connect my rig and mine ? or have to be done via Ethernet cable ?
its not so much the quantity of ram that matters (though you need 3GB or more to mine ethereum), its more about the speed of the ram. most 570 4g cards have mem that runs at 7Gbps where the 580s have mem that runs at 8Gbps, this makes a slight difference in hashrate for ethereum, but not really much for zcash for example. Brand again is not as important as components used in certain cards.. most brands have a large line up of cards with varying memory types for example, and this will make the largest difference in how they perform. XFX, Sapphire and Powercolor are generally great cards. I personally stay away from the big manufacturers who make both Nvidia and AMD cards as they tend to reuse heatsinks and fans on AMD cards that were originally designed for Nvidia cards. The AMD only companies like XFX, Powercolor and Sapphire design their heatsinks with AMD cards in mind and nothing else.
yeah you know i cant remember if it was 1750 copied up to 2000, or 1500 copied up to 1625,1750 and 2000. so i think its safe to try 1750 up to 2000 first, if that does nothing, try to copy the 1500 up to the straps above. I think buriedoneblockchain has a video up on it.. i think he copied hte 1750 over,.. but for some reason I think I copied the 1500 up on mine... so maybe its different.. mine was a 4g card.. i think his was an 8g 470. so probably yeah 1500 up for 4g and 1750 for 8g. but again, you can try the 1750 first.
check out buriedoneblockchains videos (I helped him come up with his name :P LOL )
Hi! I just built a 7 470 mining rig. I used Win10, Asus Strix 470 4bg cards and a MSI z97 gaming 5 motherboard and I cant get the GPUs to mine any faster than 25 mh/s after modding. I get this blue screen displaying the error: Thread_stuck_on_ device_ driver over and over. Can anyone help me?
I just finished installing everything and I cant really say theres any improvement at all... Suddenly it stopped outputting any signal out of any card, and now I am operating the computer through teamviewer. I cant get past 25.4 mh/s and 1100 core clock and 1850 mem clock without getting the computer restarted. This really frustrated me, Ive got 7 more cards on the way and I expected them to run at almost 27-28 mh/s
Hi Cryptomined! Thanks again for helping me. Actually yes, that was the first thing i did. I am now thinking about switching to Windows 8.1, do you think that might increase the mining speed? I tried mining with every gpu alone and everyone of them have the same problem...
i hear some boards that have 2 m.2 slots may work, i have a gigabyte z170 G1 board and it has a plex chip so it probably also works, but thats a gaming rig and very very expensive board so I would not recommend it for mining. go with B250 or Z270
Cryptomined I just saw that the z97 board only had 4 pci express slots, I returned it back to amazon. I am trying other boards to see what works. do any of the z170 boards work. I have 1 z170 motherboard but it can only mine on 4 rx480s, it has 6 pci-e slots. I'm reading it's common for z170 motherboards to get only 4 working.
Wow thanks so much for explaining about the under voltage i didn't know we could go that low. My Sapphire Nitro rx 480 8gb and 4gb 6 card rigs just went from around 930 watts to around 770 watts. I do not have those overclocked version cards like you have with the overclock switch, but using trixx I am still able to get 26.3 to 27.3 mh/s. I went to -110 volts on all of my cards, most could handle -120 volts but there was always one card per rig that just didn't like it, so -110 volts was good enough to keep a stable hash rate 24/7. Oh, and now all of my cards run even cooler about another -5 degrees from what they were running at.
I have an MSI RX 470 Armor 8GB OC (Samsung memory) with Radeon driver version 16.300.2311.0. Will I need to do something to bypass a signature check if I mod the ROM? Or can I simply mod the strap timings, flash the ROM and reboot without any issues of the driver refusing to load due to the modded ROM?
Hi! Flashing your cards will inevitably reduce their lifespan right? If that's so, then the question is if it is still better to mine faster for lesser time than to mine slower at a more conservative rate...
How much do you think or maybe have heard the lifespan of the GPUs is reduced by flashing them? :) I have 6 NITRO+ rx 470 for little month that a month already, all of them (except one) mine at 24.6 MH/s (the other one allways mines a at 21MH/s don't know why)
Thank you in advance! This video tutorial is very clear! But im not still sure if I should do it or not because of the things that I have already told asked! :) Im very open to read your arguments and maybe you end up convincing me of doing it. (I'll send a tip if you really put some effort in the argumentation) THANK YOU THANK YOU THANK YOU!
had a power spike about a month ago and had to replace the motherboard and processor, anyway, when I fire up trixx and noticed it before the power spike, trixx was stating gpu voltage on running the programme at +144550 mv also the clock went to 8000 and the gpu clock at 2000 on my rx 470 when I move the slider down to -100mv I its like 3 pixels from the end, the range on this slider is from +14550 to -200 right in the middle where it should be 0 % it says its +7824 have you ever come across this if so how do I fix it?
I have a 380x windforce installed too running at stock speeds
Hello, I have a SAPPHIRE NITRO + Radeon ™ RX 470 4G D5 OC (Hynix), and I followed the steps in your BIOS Falsh guide. However, after doing so and running the miner's script, I throw an error saying that my GPU does not have enough memory. Additionally, the catalyst control center says that it can not be executed as there is no card connected. So I had to restore the BIOS.
I think it has to do with the driver, since I do not understand that it can be wrong. I am using the "AMD Radeon Software Crimson Edition 16.11.4" version. This is another problem that I have, only with this driver the ethermine recognizes the GPU, with any other it is not possible to do it.
Please, I ask for your urgent help. Thank you very much in advance.
you can flash cards connected through a riser, this has never been a problem for me... i flash most of my cards actually through a riser. I'm not sure why you had problems flashing through a riser.
you should not need the relive patch on those drivers... were you using 16.12 drivers? i have another video on 16.12 drivers and the patch if you check my video playlists
you said you were using 16.11.4... which is not a relive driver... the link you gave me is for relive.. which I have a video on here:
Cryptomined, I'm not quite sure what you mean, because I'm new to this. But I have 8 GB of RAM, and if I run the miner with the default configuration of the card, I can mine without any problem. The issue is when I apply the flash to the bios.
I think so, but so many people have asked about so many cards, and I remember some people having problems with MSI here and there, but also some people having success.. I really forget what everyone has said... the best thing to do is to check through these comments for anyone who asked the same question (about 480 4g cards) and see what they have said. (since I dont actually have these cards).. also check through the DIY 480 8g comments for anyone posting about the 480 4g cards.
Should I get the 8GB RX 470 (it's on sale for $209 on Amazon), or the 8GB RX 480 ($259)? I'm planning to buy them for Ethereum mining, but I'm also waiting for the Ryzen processor and will buy an AM4 motherboard when they come out.
NOTE: Also, the 470 8GB is the only 470 with 8000 MHz. All the 480's have 8000 MHz.
I just use the Pi itself. There's no need to buy block erupters as they cost $50 (even more than the Pi), & they're sought out by other people and are usually put on auction.
My other mining rig has a i3-6100, three 8 GB Sapphire RX 470's (the MSI one doesn't have the BIOS switch although it's $20 less), a 3-way crossfire board, 1 stick of 8GB DDR4 RAM, and a Corsair Carbide ATX case. Btw it cost me $1600 to make that system, but I project that my main mining rig will make $700 each year.
+Cryptomined Well a Pi has a CPU & a GPU, albeit the GPU is quite laughable compared to a 1060. However, a Pi consumes only 1.2 watts of electricity, which is good for ETC, considering that ETC is quite new in the crypto-currency market. I'm experimenting with ETH as well as I added one Pi as a separate component by using Ubuntu Mate, and it makes 9 cents a day of profit, which is still profit at the very least & is quite impressive for a $35 computer.
+Cryptomined I mean the block rate in ETH hasn't reduced yet, and they said it would take a couple months for that to happen. At the same time, however, I'm working on adding 4 more Raspberry Pi's to my ETC rig, as I like both ETH & ETC.
Thanks for putting up those videos. Watching them made me decide to join the mining community.
So far I’ve purchased a MB with CPU and memory, a Sapphire RX 470 nitro+ 4GB and a PSU evga 1600. I would greatly appreciate it if you could let me know if it is necessary to get an on-off button or not. Thanks
well you can use a screw driver and short it if you want, but sure a cheap on off button helps :P i just use the cheap wire kind, if you buy anything from cryptomined.com I ship out at least 2 for free with all packages (*surprise free gift) https://cryptomined.com/index.php?main_page=product_info&cPath=1_81&products_id=69&zenid=pcj6vvdd44nhtm68fupglsja05
Hi Cryptomined, thanks for this great tutorial ! Would this work on a Sapphire RX470 OC 4GB reference (non Nitro) ?
This one: http://www.materiel.net/carte-graphique/sapphire-radeon-rx-470-oc-4-go-133269.html
It has HYNIX VRAM but no BIOS switch
Hi This is very exciting but I run into a problem that no body looks like experience so far. I have 2 MSI RX470 Gaming X - After following the steps I got a "successful completion of the bios mod" restart windows and then, windows works but the graphic card is not recognized any more. GPUZ shows GPU Clock and memory 0, Pixel fill rate 0, Bandwidth 0.reinstalling drivers do not help. after flashing back to original everything is fine. I tired few times same result. After flashing no AMD GPU found. Any advice ?
Hey there miners… I have an issue no one seems to have an answer as to why this issue… one of Rigs stops mining on Windows 10 I constantly get the message
“application has been blocked from accessing graphics hardware”
I have done countless things to try and resolve the issue for the past 2 weeks from Regedit commands to blocking defender and firewall etc nothing seems to work… I have also replaced all risers and even cloned the SSD from my first rig and placed it on my second and it blocks it…
Does anyone have any suggestions? $50 in BTC for a solution that keeps me mining more than 24 hours straight Whatsapp USA +1 210 723 1239 you can team view it if you are serious about this Gig…
I also bought Ethos thinking it was going to be easy to get it going but there is no good ethos video on youtube…
it doesnt really matter, I suppose it more depends on which bios you want to use when not using the modded rom, usually its suggested to flash over the silent rom, but you can flash over either.n I always flash over the silent mode - closer to the ports
+Aleksandar Šalamon you should compare the timings with the 4g and 8g roms, and see what you can do. Im not sure but i have heard of others getting 4g with samsung - I assume they are really 8g cards but set to use only 4g, but again I do not know for sure. best you can do is try some mods yourself and compare with whats already out there.. if i had i could try myself but I dont
No, I have 4gb card Sapphire RX 470 OC Nitro+ with Samsung memory. I have read all that you wrote but I did not find the solution. It appears that samsung memory is used for 8Gb cards and for RX 480 also.
I know this is one of your older videos but my question is relevant to this one. I did this before with one card and it worked perfectly. I got 2 more of the exact same card and same memory type and then flashed them 1 at a time while in the mobo by themselves. But now when I flash any of them I lose the capability of controlling them in MSI afterburner or Trixx. Any idea what would cause that?
Well figured out my bios issue sort of. Not sure why but there must have been an issue in the Display driver. After using DDU and then reinstalling the drivers everything is working fine now. I'm able to mod bios and then control them anyway I want. now to work on getting those voltages down I'll be good to go.
Sorry Cryptomined, for being so invasive.
I did the flash for my RX 470 with Elpida Memory in the Silent bios side of the card, as described at the video, and all went smooth. I am now hashe-in Eth with Claymore's at a steady 25.3MH/s, from a 22.5 that was on stock bios in OC bios side.
There is only one thing that i dont understand. When i open GPU-Z or STRIX, it shows GPU clock at 1260mhz and Memory clock at 1750Mhz. i don't now if it should be like this or not. I see that it should be GPU at 1060mhz and Mem at 1950, or am i missing something??? Please if any one knows, let me know, before i begin with the overclock.
Hello Crytomined, I made a mistake. Was making the modification in a rig with 2 Rx 470 and Strix Radeon R9 380. I changed the numbers the GPU and modified the R9 380. And this card had not saved the original file. You can help me fix this. it is possible to reset the card graphic? I tested it on 3 machines and they do not recognize. [email protected]
just wanted to say thanks for a good couple of videos you made, helped me alot, I purchased a rx470 8GB combined your rx480 and this video to tweak the card, modded it got an extra 3MHS out of the 470and then followed this vid to get the voltage down lost about half MHZ but about about half the voltage to around was at 130w now at 68w -113 voltage and fan speed is at 43% so really happy, thanks again
Hello, can be used RX 470 in second pci express to mining. if in First slot ist Radeon 5770 and monitor is conecting to this old radeon ? (RX 470 dont suport VGA conector, MB - M4A89GTD_PROUSB3 ) Thanks for answ
you can send it from your wallet to an exchange, and then trade it for BTC or a real currency. I use exchanges in China so not sure if a video explaining on how I exchange ETH will help anyone on here.
Thank you for your quick answer. No, I modified only what you too. Ofcourse, I am using the trixx and the 28Mhs not stable. The BIOS mod was right, but it is not the best hash rate / power setting, need the fine tuning. 27Mhs/100W is stable, but it is not the best setting.
The 28,3Mhs/75W available with watt tool, but the problem is the voltage offset, because this is not permanent value.
The ASIC value of the card is 75,3.
Hi Laszlo, have you modified any other settings? undervolted extra? overclocked the memory in wattman or trixx? if your using trixx and having this issue, try to minimize those changes or stop using trixx...
if you still have those problems, flash back to original bios, I'm not sure why your card would totally reject the memory timings, but maybe something on the card doesnt like it? what is your ASIC value?
Did you change the TDP in the bios?
not so easily as with polaris bios editor, and I have no idea of the changes you would make exactly to make that card perfect. You would have to use a hex editor and do it manually. There are some guys who can create you a custom Bios, like Wolf, but they charge a lot of money
i personally think its better to have extra headroom when it comes to a PSU, so id recommend the 1200G2 or 1200P2 EVGA even if your not going to use it all (or the 1300G2 or P2), others might say 1000W is enough, but its kinda tight with modded bios and without an undervolt and GPU downclock
the nitro have the 8 pin power on the back of the card, so you just can't see it in the video but it is plugged in. I used the same video card that was powering the screen. If you are worried, try to use the command line to flash as there is less chance for it to freeze and crash.
Just make sure that Nothing else is running the GPU - no trixx, no miner, etc... screen powered by the GPU you are flashing should be ok. Bios is generally used when the OS is loading, you should be ok
sorry my english, i saw one of your videos that the card you flashed has no cable coming out of it, so i thought that you have used another videocard for the screen, while you flash the one that is not hooked up, is that correckt? i mean i only have this card on my system anyway, so just wanted to be sure that i can flash it while i am using it!!
some recommend against it, say you should have 2 in and flash the second one.. yet lots of people recommend only having one in the system so you dont screw up any others - ... I always only have one in my system... flashed cards maybe 50 times the last month and never had a problem, so I say flash it up
Hello, I'm doing all like you're telling in the video. If I connect one GPU i can get 28 MH @ 60 Watts. BUT if I connect few GPUs there is one overclocking only!
All of connecteed GPUs gave me 28 MH when they were connected as only a card in the system but when i connect multiple one GPU only gives 28 and all others 23. what am i doing wrong? Help me please
ill unplug 4 cards from the 6 GPU rig and see what that runs from the wall in the morning without any extra undervolts, GPU's flashed with Boysies Modded Rom... (running ASRock Pro BTC Motherboard, 4 Gigs ram, G1840 CPU on the stock cooler and 2 Nitro 470 4g GPUs).. ill reply back as soon as I have the time to do that for you.
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