BIOS and mods for Sapphire RX 480 8gb Micron Memory - 0.25 ETH reward for help

[insider00]

Hello

I just got a 5 of Sapphire RX 480 8gb Micron Memory hashing at 24.2XX

I need help in reaching the best speed on ETH with these GPUs with a modded bios, i know how to change time strap but this card time straps is different than the other cards i ever seen check screenshot ( http://prnt.sc/eolr9f ) . The memory type is Micron
BIOS Download : https://www.dropbox.com/s/a1abv2t548jqezb/micron4802.rar?dl=0

I have searched the forum here for help and even Google but it seems that there is no reliable/helpful advice with this card in particular.

0.25 reward to the person that helps the most

[percy_tc]

copy faster timings value and paste to the last field.

example: copy "18400..." value to " 1900.." field.

[insider00]

i don't think that u toke a look on the bios i sent

it's has 2 memory straps profiles each profile has 11 field, it's a really strange bios to me

[Set Ready Go]

check out this video on youtube, talks about micron memory and why it isnt moddable.



https://www.youtube.com/watch?v=TWX5bOTjipQ

[cryptominer420]

Here are 3 bioses modded for you.
1625 Memory straps https://www.dropbox.com/s/qs3av04vv5e1skn/micron4802-1625%20Straps.rom?dl=0
1700 Memory straps https://www.dropbox.com/s/292axebpcc3pghb/micron4802-1750%20Straps.rom?dl=0
1500 Memory straps (may not work at all) https://www.dropbox.com/s/0x6767hd9idlnxm/micron4802-1500%20Straps%20May%20noy%20work%20under%20load.rom?dl=0

This is the usable Micron and elpida version of polaris bios editor https://www.dropbox.com/s/5r3z83yg15arymq/PolarisBiosEditor-micron-elpida.rar?dl=0

[insider00]

Here are 3 bioses modded for you.
1625 Memory straps https://www.dropbox.com/s/qs3av04vv5e1skn/micron4802-1625%20Straps.rom?dl=0
1700 Memory straps https://www.dropbox.com/s/292axebpcc3pghb/micron4802-1750%20Straps.rom?dl=0
1500 Memory straps (may not work at all) https://www.dropbox.com/s/0x6767hd9idlnxm/micron4802-1500%20Straps%20May%20noy%20work%20under%20load.rom?dl=0

This is the usable Micron and elpida version of polaris bios editor https://www.dropbox.com/s/5r3z83yg15arymq/PolarisBiosEditor-micron-elpida.rar?dl=0

Thank you for your help, but are you sure this one will work ? have you tested it before ? i didn't flash it yet, but i used similar mod yesterday and didn't work, alot of people saying it's can't be modified, just want to make sure that u tried it before ?

thanks

[Raja_MBZ]

If you want to attain stable 27 MH/s, do you know you can get it without flashing through Claymore miner's integrated functions?

Use -cclock and -mclock, check FAQ of Claymore miner for more information.

[cryptominer420]

Thank you for your help, but are you sure this one will work ? have you tested it before ? i didn't flash it yet, but i used similar mod yesterday and didn't work, alot of people saying it's can't be modified, just want to make sure that u tried it before ?

thanks

I have not tried it however there is no reason it shouldn't work. If I had the card in front of me I would keep going even if that ment I had to start digging into hex. However I had to put together a separate machine running 16.11.5 to flash some of my samsung memory cards then when put back into a system running 16.9.2 they worked perfectly.

Side note if none of them work your not out anything however if they work and you chose to send me a tip that would be cool.

[boatznhoes]

I believe I have these same cards. Let me know if these work out for you.

[IojkinKot]

Hello

I just got a 5 of Sapphire RX 480 8gb Micron Memory hashing at 24.2XX

I need help in reaching the best speed on ETH with these GPUs with a modded bios, i know how to change time strap but this card time straps is different than the other cards i ever seen check screenshot ( http://prnt.sc/eolr9f ) . The memory type is Micron
BIOS Download : https://www.dropbox.com/s/a1abv2t548jqezb/micron4802.rar?dl=0

I have searched the forum here for help and even Google but it seems that there is no reliable/helpful advice with this card in particular.

0.25 reward to the person that helps the most

Try to use my PBE
https://github.com/IojkinKot/PolarisBiosEditor

[boatznhoes]

Hello

I just got a 5 of Sapphire RX 480 8gb Micron Memory hashing at 24.2XX

I need help in reaching the best speed on ETH with these GPUs with a modded bios, i know how to change time strap but this card time straps is different than the other cards i ever seen check screenshot ( http://prnt.sc/eolr9f ) . The memory type is Micron
BIOS Download : https://www.dropbox.com/s/a1abv2t548jqezb/micron4802.rar?dl=0

I have searched the forum here for help and even Google but it seems that there is no reliable/helpful advice with this card in particular.

0.25 reward to the person that helps the most

Is your current bios 113-1E353FU.O50?

[insider00]

Hello

I just got a 5 of Sapphire RX 480 8gb Micron Memory hashing at 24.2XX

I need help in reaching the best speed on ETH with these GPUs with a modded bios, i know how to change time strap but this card time straps is different than the other cards i ever seen check screenshot ( http://prnt.sc/eolr9f ) . The memory type is Micron
BIOS Download : https://www.dropbox.com/s/a1abv2t548jqezb/micron4802.rar?dl=0

I have searched the forum here for help and even Google but it seems that there is no reliable/helpful advice with this card in particular.

0.25 reward to the person that helps the most

Is your current bios 113-1E353FU.O50?

Yes it's the same one u mention

[boatznhoes]

Great Ive hard a hard time finding any compatible bios for it. Im running ethos, so I dont think I can use polaris or anything.
Let me know if any of the above work and your results. I will split the tip with you.

[insider00]

Thank you for your help, but are you sure this one will work ? have you tested it before ? i didn't flash it yet, but i used similar mod yesterday and didn't work, alot of people saying it's can't be modified, just want to make sure that u tried it before ?

thanks

I have not tried it however there is no reason it shouldn't work. If I had the card in front of me I would keep going even if that ment I had to start digging into hex. However I had to put together a separate machine running 16.11.5 to flash some of my samsung memory cards then when put back into a system running 16.9.2 they worked perfectly.

Side note if none of them work your not out anything however if they work and you chose to send me a tip that would be cool.

Woohoo, Who said Micron is sucks , Finally it's worked hashing at 30.3XX, after few edits in bios and Wattool,

0.25 Eth Sent
https://etherscan.io/tx/0x273384d026f0200920ee8a7196382afde13b37d0cc749fc8cb092d0aecd319bd

Thanks .

[cryptominer420]

Eth received, Thank you.  I enjoy bios modding on my cards however it has always been a pain with some memory types. For example on rx 470 4gb Hynix cards I can't get them to hash over 27Mh but all my rx 470 4gb samsung cards hash at 29-30MH.

[insider00]

Eth received, Thank you.  I enjoy bios modding on my cards however it has always been a pain with some memory types. For example on rx 470 4gb Hynix cards I can't get them to hash over 27Mh but all my rx 470 4gb samsung cards hash at 29-30MH.

i think i can help u with the Hynix memory i have edited the bios before and getting 28.8XX, RX 470 4gb

[lazyboi]

i have Sapphire Nitro NON PLUS Micron memory
bios version 0.15.050.000.001.000000
i get about 24.500
after overclocking through wattman  memclock to 2000 and gpu clock to 1350 i get max 25.200 and temp goes 80+ (iam from india here temperature is 40C) 


should i take the risk i heard it can HARD BRICk the GPU

[lazyboi]

Woohoo, Who said Micron is sucks , Finally it's worked hashing at 30.3XX, after few edits in bios and Wattool,


hii can you plz share what exactly you did ?  i've been looking for days  to mod Micron 

[cryptominer420]

@insider00 - My stock bios for these cards is here
https://www.dropbox.com/s/84uznpkx3gpmt38/Hynix%20470%204GB%20Stock.rom?dl=0
Any help will be appreciated as the best I could achieve was 27.313 MH/s at 1950 Mem and a core clock of 1242 using the 1750 Straps.


@lazyboi - Post your bios and I can do some simple mem edits and can see what I can do.

[lazyboi]

EDIT
link to my bios

https://www.dropbox.com/s/2m3ss7r2itouocw/rx480stock.rom?dl=0




https://lazyboi-1.tumblr.com/image/158899483940


i dont get it exactly,  should i upload my bios file ?