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Topic: RX480 Reference - 8Gb - Custom Bios & optimization - Help (Read 472 times)

sr. member
Activity: 689
Merit: 253
If you already bios modded copying the 1750 strap to the higher ones, the only thing that seems missing is overclocking your ram to 2000-2100 with samsung
sr. member
Activity: 546
Merit: 250
Active Trading on EPIC5k and Spectre.Ai
There are LITERALLY 100's if not 1000's of replies to threads and comments that literally explain in exhausting detail how to do this.

Use the search function for 5 seconds and find them. Stop clogging the forums with questions that have been answered 5000000000 times
newbie
Activity: 5
Merit: 0
Good day everybody...

i just started with mining and build myself a prototype miner with stuff i had laying around mostly unused....
My configuration is:

Hardware:
3x XFX Radeon RX 480 RX480M8BFA6 Reference design - Samsung Memory
1x Xeon E5-2698V4 ES (20 core, 40 threads, 2,3ghz, 50mb L3)
1x Supermicro X10SRA-F motherboard
2x 16Gb ECC DDR4
1x 1000W EVGA G2

GPU Installation:
All 3 GPU´s are installed internally to the motherboards PCI Sockets 2, 4 and 6.
6 is running in 16x, 4 & 2 are running in 8x

Software:
Windows 10
Crimson 16.9.2
Claymore dual GPU miner v8.0 (though only using single miner mode)
Docker with Monero CPU miner from servethehome.com

Past and current mining performance:
- my 3 cards made out of the boy 23-24Mh/s with crimson 17.3.3
- changed drivers to 16.9.2 witch improved to about 24-25Mh/s
- Downloaded Bios of cards, made a copy entered PolarisBiosEditor and copied the timing string from 1750 to 2000, wich improved performance to 25-26Mh/s

26Mh/s is what i currently max. achieve per card.

Obviously i have seen an dread the threads about the 31Mh/s modded bios and i have tried to flash it on my cards. unfortunately i have returned with a flashing error. I have loaded the 30Mh/s version into the polaris editor and have seen that it says 4gb Version. i Further then have copied all settings for speed, voltages and timings to my original Bios, once successfully flashed and rebooted the installed drivers do not regignize the card and boots without loading the drivers. I have flashed the card back and only modified now the timing string from 1750 to 2000....

i hope somebody can take me by the hand and guide me to make my cards finally run 30Mh/s in a power efficient manner...

Thank you for your support and time,
Have a great day!


Post i am referring to:
https://bitcointalksearch.org/topic/update-rx480-ref-31mh-custom-rom-vddc-offset-custom-timing-1584617

Current mining performance:
https://ethermine.org/miners/e83b5462e8576bd528e484ece5705e16c5a65a37

Screenshot of miner and card infos
http://imgur.com/a/w6WsK
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