[UPDATE] RX480 (Ref) 31+Mh, Custom Rom - VDDC OFFSET + Custom timing

[NewbieTreider]

Ok, here.

For the linux guys.

Just flash rom and run it, card won't consume more than 100w and will stay under 85degrees at all times.
No more jumping around between DPM states.

When running stock, speed on Ethereum will be around 30Mh (as you can see in my included image).

Core clock is set to go to 1191Mh and memory will go to 2200.

Rom: Here



Large image: Here

For the Windows guys, for now, same thing, only Windows 10 with signature check disabled and a modified atikmdag.sys file.


Had no chance to do a decent energy test, will do this later.

Greetings

As marvykkio said, thank you so much for share your modded bios.

I don't have a RX480, maybe I will buy one in few days, (moneyyyy ) ... then I will try it and share here my results. No doubt about it.

World needs more people like you. Again, thank you very much for your comments and ideas, for share, and for your support!

[1713549442]

1713549442

[1713549442]

1713549442

[sevenzk]

Ubuntu 14.04 amdgpupro 16.30

http://i64.tinypic.com/avrjid.png

erm somehow using insert image, pic doesn't show

Speed is ranging from 21MH/s to 29MH/s.

[dddrgonzooo]

Thanks for posting your roms. I flashed 3 Powercolor 8gb ref cards (30MH rom). I haven't checked power usage but they are hashing close to before. One of the GPU's (my main) is having issues (display is pixelated and the picture is scattered), I'll relash that one in the morning.

Ubutnu 16.04 amdgpupro 16.30

22 - 24 MH/s

Edit: Crashed within 15 minutes - I flashed stock roms back until I can spend more time on this.

[billyCryptoKid]

I keep seeing @heliox write about windows 10 install, but has anyone actually gotten this installed on win 10? if so how exactly did you accomplish?

[hoogenband325]

good.

[gaalx]

What are you to flash? Sewn under Win 10 or under dos?

[ldw-com]

I keep seeing @heliox write about windows 10 install, but has anyone actually gotten this installed on win 10? if so how exactly did you accomplish?

https://forum.ethereum.org/discussion/comment/54483/#Comment_54483

Boysie managed to get it to work as well

[citronick]

Heliox... don't forget W8.1 too. If 120w/32MHs/60c is stable on non-WIN10... this is great news for me. But I dont mind converting some to Ubuntu rigs. Can you share the Linux environment you used for the stable Linux version? Thanks

[ldw-com]

Heliox... don't forget W8.1 too. If 120w/32MHs/60c is stable on non-WIN10... this is great news for me. But I dont mind converting some to Ubuntu rigs. Can you share the Linux environment you used for the stable Linux version? Thanks

Haha, just read your post over at Ethereum Forums which is exactly the same :tongue: Made me laugh

I didn't test on a unix system, got some friends over at ethereumos who did some testing.

But i'll try to keep eveyrone up to date!

[Dum3]

Quick question,once custom rom flashed will the wattman app still work?

?

[ldw-com]

Quick question,once custom rom flashed will the wattman app still work?

?

Sure does, check my included images..

[Dum3]

Thanks,will try your rom when have little time available.

Problem is:

1.To reduce power-draw need to lower VDDC.
2.To reduce VDDC need to reduce VCCIO(the memory voltage in Wattman,but that is not the memory voltage,that is the memory controller voltage)
3.To reduce VCCIO the memory frequency will drop ,for 2170-2200 i found 5 cards need 0.92  .
4.0.92 VCCIO will limit the VDDC shown in Gpu-z to 0.9187-0.9250 resulting in 75-80 power draw reported in Gpu-z. ( at 1020 core )

This is all on stock rom which i run 1020 core / 2200 memory and resulting in 27 mh/s on all of my 5 cards . Would be curious the gains tighter timings make,can you test in this conditions too ?

Very happy with my results for RX480 however if additional 2-3 Mh/s can be gained in similar power consumption that would be absolutely awesome

[ldw-com]

Thanks,will try your rom when have little time available.

Problem is:

1.To reduce power-draw need to lower VDDC.
2.To reduce VDDC need to reduce VCCIO(the memory voltage in Wattman,but that is not the memory voltage,that is the memory controller voltage)
3.To reduce VCCIO the memory frequency will drop ,for 2170-2200 i found 5 cards need 0.92  .
4.0.92 VCCIO will limit the VDDC shown in Gpu-z to 0.9187-0.9250 resulting in 75-80 power draw reported in Gpu-z. ( at 1020 core )

This is all on stock rom which i run 1020 core / 2200 memory and resulting in 27 mh/s on all of my 5 cards . Would be curious the gains tighter timings make,can you test in this conditions too ?

Very happy with my results for RX480 however if additional 2-3 Mh/s can be gained in similar power consumption that would be absolutely awesome

1. True
2. First time i hear that :p and it's VDDCI You're right about the memory controller though.
3. Depends.. not every card is the same
4. Interesting, going to test that out..


At this moment, over 1hr rock solid at 31Mh+



Stats on pool can be seen here: Link

[Dum3]

Thanks,will try your rom when have little time available.

Problem is:

1.To reduce power-draw need to lower VDDC.
2.To reduce VDDC need to reduce VCCIO(the memory voltage in Wattman,but that is not the memory voltage,that is the memory controller voltage)
3.To reduce VCCIO the memory frequency will drop ,for 2170-2200 i found 5 cards need 0.92  .
4.0.92 VCCIO will limit the VDDC shown in Gpu-z to 0.9187-0.9250 resulting in 75-80 power draw reported in Gpu-z. ( at 1020 core )

This is all on stock rom which i run 1020 core / 2200 memory and resulting in 27 mh/s on all of my 5 cards . Would be curious the gains tighter timings make,can you test in this conditions too ?

Very happy with my results for RX480 however if additional 2-3 Mh/s can be gained in similar power consumption that would be absolutely awesome

1. True
2. First time i hear that :p and it's VDDCI You're right about the memory controller though.
3. Depends.. not every card is the same
4. Interesting, going to test that out..


At this moment, over 1hr rock solid at 31Mh+



Stats on pool can be seen here: Link

Surely,try to lower VDDC to 0.90 with memory controller voltage stuck at 1 V ,you will see that the vddc reported in gpu-z is 1 V and not 0.90 that you set

4 of my cards will do 1020 core at 0.90 VDDC,one needs 0.925  

Please test 1020 / 2200 with better memory timings , as i said on stock rom this is 27 mh/s

[citronick]

Heliox... don't forget W8.1 too. If 120w/32MHs/60c is stable on non-WIN10... this is great news for me. But I dont mind converting some to Ubuntu rigs. Can you share the Linux environment you used for the stable Linux version? Thanks

Haha, just read your post over at Ethereum Forums which is exactly the same :tongue: Made me laugh

I didn't test on a unix system, got some friends over at ethereumos who did some testing.

But i'll try to keep eveyrone up to date!

LOL.... there are not many gurus out there that has a sense of humour  - ha ha!

Thanks for the great work on the ROMs.

Save the Planet. Save the Future.

[Cryptozillah]

Haven't had time to read all the replies.. sorry for that.

For the linux guys.

Rom is here: Here


For Windows 10 users, you can do this:

i) Press Windows Key + X to open Power User Menu. Select Command Prompt (Admin) from the menu.
ii) Once the Command Prompt open, enter bcdedit.exe -set loadoptions DISABLE_INTEGRITY_CHECKS and press Enter. Then enter bcdedit.exe -set TESTSIGNING ON and press Enter.
iii) Close Command Prompt and restart your PC.

If this fails for some reason, you can reboot with Signature checks disabled by rebooting into advanced options (Hold left shift key while hitting reboot button) and hit F7.

You need to copy the modified atikmdag.sys file into your drivers folder as well (C:/Windows/System32/Drivers)

File can be found here: Here

Rom has modified timings and higher limits. (Memory 2275, higher tdp limit...)

I'll do an energy friendly rom later this week.

For the Windows 7 users, i'll look into that this week.

Greetings

In Windows 10:

"i) Press Windows Key + X to open Power User Menu. Select Command Prompt (Admin) from the menu.
ii) Once the Command Prompt open, enter bcdedit.exe -set loadoptions DISABLE_INTEGRITY_CHECKS and press Enter. Then enter bcdedit.exe -set TESTSIGNING ON and press Enter.
iii) Close Command Prompt and restart your PC."

Is this needed every time i reboot my rigs with modified roms ?
Or is it just one time ?

Preparing for modding my 480s later this week.

[NewbieTreider]

One little question...

I'm thinking about buy a XFX RX480 8GB, someone tested this GPU with this bios? TIA!

[hpcoin]

Hello can you give me the link rom 480 ref giga 8Gb? Mod big thanks

[Alubert]

One little question...

I'm thinking about buy a XFX RX480 8GB, someone tested this GPU with this bios? TIA!

If that is the reference card, then you can use the BIOS as all the reference cards are the same. Otherwise, you cannot.

[Eliovp]

Follow these steps


1: (while everything is at stock, so stock rom, stock driver) i execute this command first (as admin)

bcdedit /set nointegritychecks on

2: I reboot to safe mode(Hold Shift while clicking reboot) and i replace that atikmdag.sys file.

3: I reboot back into windows with that replaced atikmdag file. Windows should load perfectly, same for your drivers.

4: I flash my rom (command line atiflash, also as admin)

5: I reboot with signature checks disabled (also holding left shift while hitting the reboot button), you can do this in the next screen after you clicked reboot while holding left shift. You'll get a menu and you just do this. (same applies for Safe mode)

Troubleshoot > Advanced options > Startup Settings and click Restart

6: Everything should look perfectly fine when rebooted (i do not get the "test mode" message in the lower right corner. It just works  )



Ps.



More than 12hrs rock solid.


Greetings