Hey, people. I just found the best
BIOS for Sapphire Nitro+ OC RX 480 8GB. Tested it on 8 GPUs, all of them are working great with no problem so far.
This bios is from a
Sapphire Nitro+ OC RX 480 8GB with Samsung memory, some say that all 8GB cards have Samsung memory only and 4 GB cards are based on Hynix or Elpida memory.
Here is the exact GPU i am using in this tutorial ( also on SALE 🙂 )
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Before to use this
ROM, make sure your GPU has Samsung memory by checking it with GPU-Z
First of all i will tell you the exact tools and software i am using, maybe this will make the difference..
Everyone should give a big thanks to
Jukebox, from Ethereum forum.
thread here, Jukebox posted a BIOS ROM that he was testing, “ “. He also stated that “If you Here is my another ROM with 1150/2150 clock settings, that does 29.8 MH, Use it on your own risk. VERY lucky, you can try to clock up to 1225/2300 MHz and reach 31.5-32 Mh with this ROM, but test it yourself. “, but i guess that would be too much and will also increase the power consumption.
Here what you should do to achieve this awesome results 1 Download ATIflash and BIOS ROM file
2 Backup & Flash the BIOS ROM
First of all make a backup of the original BIOS (OC version) with ATIflash
Shutdown the rig
Switch VBIOS to the other side (side with HDMI cable)
Turn on the rig
Create a backup of “silent” ROM
Now that we have a backup of both BIOSES, let’s flash the
Start ATIflash as administrator
Click “ Program” and wait, the programming process will take max 1 minute
Restart the rig once you get the confirmation that the ROM was successfully programmed
I made a special video just for this, here it is
VIDEO 3 Claymore’s Dual Ethereum Miner
Download the latest version https://mega.nz/#F!O4YA2JgD!n2b4iSHQDruEsYUvTQP5_w
Create a text document and paste the following code inside
EthDcrMiner64.exe –epool eu1.ethermine.org:4444 –ewal ETHEREUM_WALLET_KEY.RX480s –epsw x –dpool dcr .suprnova.cc:2252 –dwal SUPRNOVA_USERNAME.WORKER_NAME –dpsw WORKER_PASS –tstop 85 –dcri 34
Save the file as .bat, like ETH+DCR.bat
Now run the .bat file 4 Sapphire Trixx – Overclock and Undervolt
Download the latest version http://www.sapphiretech.com/catapage_tech.asp?cataid=291&lang=eng
Install, start Sapphire Trixx and set the following values if not already added
GPU Clock: 1150
Memory Clock: 2150
Apply changes, and after that make this modification
Repeat this steps for each card
Check Claymore for results 5
Registry modification & Virtual Memory
I am using a file created by a user from Ethereum forum which let’s you to disable a lot of unuseful features for a mining rig like windows update, windows defender, OneDrive etc..
Before to run the modifier, please backup your registry first
As for virtual memory, claymore’s is asking for it, and this will improove your rig performance, at least for me it did
Go to “ System” -> “ Advanced system settings“
On “ Advanced” tab where its says “ Performance” click on “ Settings“
Select “ Advanced” tab again
Click “ Change” button
Uncheck “ Automatically manage paging file size for all drives“
Check “ Custom size“
For “ Initial size (MB)” i usually use the recommended one which in my case is “ 2938“, so i will add: 3000
For “ Maximum size (MB)” add: 16000
Click “ Set” button
If you have less than 6 GPUs on your rig then, i gues, not reall sure 100% but you will have to use a different
–dcri, to find the best –dcri value for your rig increase or decrease intensity by pressing “ +” or “ –“, then press “ S” to see current hashrate.
And finnally, the numbers, best moment of this tutorial 🙂
Profitaility UPDATE: Wednesday, March 29, 2017
If for some reason this
BIOS ROM does not work for your card as it happen with John here, like you get blue/black/green screens while starting to mine or booting to windows, low hashrate etc.. is maybe because of bad chips, you can use this ROM : https://mega.nz/#!M14GXLgS!n03dhVJZeHkTyFff48dpUqFE8hK3Rj0Ek7D8dcB7vMY , it is a bit slower but will work for sure. Check this tutorial if you need help re-flashing your GPU: How to FIX & RE-Flash BIOS of Bricked GPU on RX 470 / 480 Series
Happy mining! 🙂
Thank you for reading. As always, your comments, suggestions and questions are welcome.
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