New package with updated rom "30-06-2016"
Details rom usage.
140 Mh/s @ 2.25A, 495watt (6 Cards) stock settings rom.
185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem
-200mV(memory) rom (only for the silicon lottery winners!)
Atiflash (command line flash tool)
AtiWinFlash (Gui version)
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 Smiley
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....
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)
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!
Run as Administ.
Easy does it...
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.
For those with problems with the provided roms, this package "here
" includes -106mV, -112mV, -118mV and -125mV memory clock.
Core clock is still 800 stock, memclock 300, core voltage -100mV.
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.
You can always contact me with questions!
Over at bitcointalk i had a few people pm'ing me for a donation address.
Some old info and blabla:
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 (with some help from someone) to the point that it almost dropped 50% in power usage at the same speed Grin
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..)
Ps. Cards/configs may still be submitted to mininghwcomparison.com! Cool