Topic: R9 Nano Modded Rom - page 30. (Read 60873 times)

not to mention removing the warranty with all those bios flash, i would certainly not do it with so many gpu, the risk to screw one is high, and those card are expensive, it must be said that without this mod, having 1500w for 170 mega on ETH, is not good at all,  a 970 can do 1k and 132 mega, this is almost 200 mega with 1500w

The problem with undervolting is that it might crash every few hours or so. And you have to manually restart the mining.

Soon there is someone whining about something not working 

Bios for hawaii too, please! 

Domain is down, all links here are down.

I put everything i shared here and in other threads (kind of) in a small package.

Link: - Here -


Rom update for Zcash
Zcash Nano Rom  

This one is heavy, you'll need to have a killer nano to be able to handle this.
Link: Here
Reduced core voltage, raised memory voltage (which is needed)


Second one: A little softer

Link: Here
No reduced core voltage, increased memory voltage (+25mV)
Stock memory clock is 550 with the option to raise to 600max.

Have fun!


Rom update
For more information check my post regarding this.
Link : -Here-


Small update (got a pm from someone with issues.)
For those with problems, this package "here" includes -106mV, -112mV, -118mV and -125mV memory clock.
Core clock is still 800 stock, memclock 300, core voltage -100.

If you still have problems with one of these roms, pump up your core voltage (+6mV), some cards just won't do -100mV with a monitor attached.


New Update

Details rom usage.
---------------
Ethereum tests:

134 Mh/s 140 Mh/s @ 2.25A, 495watt (6 Cards) stock settings rom

185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem


Details package
---------------
-175mV(memory) rom
-200mV(memory) rom (only for the silicon lottery winners!)
Atiflash (command line flash tool)
AtiWinFlash (Gui version)
Readme.txt


Details ROMs
-----------
Core voltage is set at -100mV
You can go lower with software like afterburner.
Do this in steps. F.e. +6mV, if stable, try +12mV.. and so on..

I noticed that -100mV is the most stable for all cards (i have 100 so i know..)
Some will even do -125mV without issues.

Memory Voltage first rom is set at -175mV
Works perfectly when mining Ethereum, other more memory intensive algo's could be a problem though.

Memory Voltage second rom is set at -200mV
This will work just fine with this rom when mining Ethereum or any other algo that isn't so memory intensive
Please try the -175mV one first before you try the -200mV one, it's even better to try the -125mV one to see if your system is stable or not!
Link for the -125 package is on top in the last update.

Core clock is set at 800 stock for both rome but can easily be raised to 1000 or higher.
Memory Clock is set at 300 stock, also on both roms, this can also be raised but i would advice not to. IT has not point anyway....


AtiFlash.exe
------------
I use this one because i just like it and has never given me any issues.
It is NOT possible to use a version of atiflash when your system is loaded with a bootable drive (ex. Win 98 USBboot)

Steps:
1. Unpack everything to a folder of your choice.
2. Run cmd as administrator, go to where your folder is located.
3. To flash enter atiflash -p -f 0 DPM-200mV.rom, wait until atiflash tells you to restart.

!!!: Do NOT have HWiNFO , GPU-Z, MSI AB, etc running in the background when flashing card!

AtiWinflash.exe
--------------
Run as Administrator.
Easy does it...


References
--------------
OCN Fiji Bios Editing


Issues?
-------
I would advice everyone, after you flash your card(s) to remove your driver with DDU
and reinstall your driver. This always works! It takes some more time but it's worth it.

You can however just restart (don't just restart, completely shut down your system) "Power off!",
go to crimson preferences and reset everything.

Remove any profiles you have in afterburner (Program Files(x86) - MSI Afterburner - Profiles)
Remove settings from Trixx
Idem for any other OC tools.

You can always contact me with questions!

Greetings

Heliox.


Link: Here


Some old info and blabla:

Hey,

As we all know, the R9 Nano is one of the most energy efficient GPU's out there at this moment.

In the past months i've done numerous of tests on how to get this card as stable and as power efficient as possible.

I've been thinking about sharing my results and tests and came to the conclusion to keep it short and as helpful as possible for every Nano owner out there.

I modded my Sapphire Nano rom to the point that it almost dropped 50% in power usage at the same speed  

And i would like to share that.

Please be careful. (you have a secondary bios switch, so you can always switch back)



For all the *nix users out there. This might be very interesting for you guys because i know what a hassle it is to change voltage in linux. Yeah.. not...

Also, if you want to flash in Linux, that isn't possible right now. You'll need Windows. (And not a bootable version! Won't work on Fiji..)


Enjoy!