Hi Everyone! Just wanted to share what I did to improve my hash rates from 593 H/s to 730 h/s on MSI 480X Armor Series 4GB (Hynix). (Claymore 9.6)
Necessary Software : MSI Afterburner (or equivalent), DDU, 16.9.1 AMD Drivers, ATIFlas 2.7.4, Polaris Bios Editor
1) Run DDU and uninstall current drivers and downgrade / upgrade AMD drivers to 16.9.1 (Why? Cause these dont need Bios to be signed. IMPORTANT : ALWAYS REMEMBER THIS)
2) Once restarted please make sure you turnoff Crossfire (if applicable) before moving forward.
3) Download ATIflash 2.7.4 and Polaris Bios Editor
4) Take a back up of current Graphic Cards Bios (VERY IMPORTANT)
5) Open said back up of Bios in Polaris editor
6) Bottom right hand you will see memory speeds (in 300Mhz all the way to 2000 Mhz) and timings (in Hex)
7) Copy the hex string that is present in 1500 MHZ and paste it to other's which are BELOW it (I.E the 1750MHZ and so on)
Save the Bios as "RX480Modded", so your back up remains intact and you dont fudge it.
9) Reload ATIFlash and "Load" "Rx480Modded" Bios and click on "Program".
10) Restart Computer
Try running Claymore and only claymore, not Wolf's miner (no offence, but limit your variables). Check if it hashes. if you are on a 4GB card your MEM timing might be at 1750. Run it a while and you should see some improvement to your hash rates. Next, fire up MSI Burner, and increase Mem speed to 2000. Restart Claymore miner. And this is where its a bit jiffy, sometimes my cards can run fine for days, sometimes they crash or hang on 1st attempt. If they crash try restarting and checking / lower mem speed. Once you notice everything is stable, try playing around with the voltage and core clock to better your efficiency. I dont know if Im doing good or not, but here are my stats (I dont know how to post pics, but will do so if some one wants to see).
HW : 2x Rx480 + 1x ATI 7950 (no bios mod for 7950 or anything but running @ 1050 / 1450)
Total Hash : 1878 H/s
RX 480 : 724, RX 480 725, 7950 430.
Core clock for RX480 = 1160MHZ // Mem : 2000Mhz Voltage for both cards @ 943mv
7950 Voltage = 1000mv
Total Power Draw @ wall : 380 Watts (Edit : Opps its actually 380 Watts, had my CPU Miner running as well which is why it showed 430W, corrected)
NOTE: After flashing your "custom" Rom, if you upgrade your graphic drivers, windows / ATI will not detect your cards any more. To revert that just reflash your backed up Bios Rom and it should be back to normal. Or (Very complicated and time consuming process involved) there are work arounds to disable both driver signing and AMD signing (not sure what its called) just check in this forum.
I know the above can be overwhelming if you are not in to this stuff and I wasnt and I needed some $ to pay my ever increasing bills. But as long as you dont do something too greedy or stupid you should make it out alright. Try this at your own risk, there are obvious dangers involved, with a bad bios flash, you may loose the card.
So good luck! And hope this helps someone.
