R9 Nano Modded Rom

[Eliovp]

Say maybe ASUS and Gigabyte > XFX and Sapphire?

There is no difference between them, the only difference is the stick on the card and the after sale service.

That is correct

Regarding the 390 rom, will update OP this week for sure! "Been updating some other things first.."

[1713945087]

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[1713945087]

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[fricircled]

Say maybe ASUS and Gigabyte > XFX and Sapphire?

There is no difference between them, the only difference is the stick on the card and the after sale service.

That is correct

Regarding the 390 rom, will update OP this week for sure! "Been updating some other things first.."

That is great. We would like to see some updates on the R9 390. It is a great card, and needs some power saving.

[agente]

Going crazy with my 6gpu rig (nano). Blank screen.. restart.. frozing.. i'm going crazy  
Elliovp are you using usb pci express riser?

Maybe I have to try with -135 and not -175..

[ldw-com]

Going crazy with my 6gpu rig (nano). Blank screen.. restart.. frozing.. i'm going crazy  
Elliovp are you using usb pci express riser?

Maybe I have to try with -135 and not -175..

Yes i am using risers.

Try the -106mV Mem first, if that works, try the next one.

-175 seems to be heavy for most cards.

[citronick]

reserved - for my next project

[rednoW]

That is correct

Regarding the 390 rom, will update OP this week for sure! "Been updating some other things first.."

In posts before you've said that you was able to change memory voltage by software on 290-series card.
Did you mean memory voltage or aux voltage (vddci) that can be modded by Afterburner or HawaiiBiosReader?
If first could you please explain how did you change mem voltage?

[Eliovp]

That is correct

Regarding the 390 rom, will update OP this week for sure! "Been updating some other things first.."

In posts before you've said that you was able to change memory voltage by software on 290-series card.
Did you mean memory voltage or aux voltage (vddci) that can be modded by Afterburner or HawaiiBiosReader?
If first could you please explain how did you change mem voltage?

Hey Rednow,

I was talking about memory voltage, not aux voltage.

But i thought it was basically the same as with Fiji, but it clearly isn't

I'll post some results later, have had a very busy week.

Greetings

[citronick]

Ellovp,

is 8 x GPU possible under Ubuntu, using 1 x 1600 PSU, using that 3-to-1 PCI riser + 5 x normal PCI riser?

[mikewillda]

Ellovp,

is 8 x GPU possible under Ubuntu, using 1 x 1600 PSU, using that 3-to-1 PCI riser + 5 x normal PCI riser?

I tried to use 4x7990 or other combination of 2X7990+4X390. That is in Windows with 6 PCIE slots. I cannot go beyond 8 GPU.

[ldw-com]

Ellovp,

is 8 x GPU possible under Ubuntu, using 1 x 1600 PSU, using that 3-to-1 PCI riser + 5 x normal PCI riser?

Should work with 8, check the Ethereum forums. "forum.ethereum.org

There's a few guys (at least one for sure) that are running 8Gpu's.

Ellovp,

is 8 x GPU possible under Ubuntu, using 1 x 1600 PSU, using that 3-to-1 PCI riser + 5 x normal PCI riser?

I tried to use 4x7990 or other combination of 2X7990+4X390. That is in Windows with 6 PCIE slots. I cannot go beyond 8 GPU.

Yeah, i have a few of those splitters as well, had issues with windows recognizing them. Windows kept seeing that splitter but not my gpu's.

I still have them, i could still try and make it work but haven't really had the time to play around with those things .

Maybe later.

Greetings



Edit: Found it: http://forum.ethereum.org/discussion/comment/26366

[agente]

usefull information to share with you...
I have a lot of GPU (nano of course) that works good with -175mv but 20% works only with -135mv. just one gpu in 6 gpu rig and all system is not stable and freeze. So... start from -135mv always! and than... maybe... lower
I lost two nights...

[Eliovp]

usefull information to share with you...
I have a lot of GPU (nano of course) that works good with -175mv but 20% works only with -135mv. just one gpu in 6 gpu rig and all system is not stable and freeze. So... start from -135mv always! and than... maybe... lower
I lost two nights...

I should have mentioned that earlier.

I haven't had a lot of those problems though, i must be lucky i guess..

I had a few that were giving me some issues, like 2 out of 100. (I flash my cards remotely and only hook up a screen to install drivers..)

[citronick]

what is the stock wattage out of the box without mod for the nano?
could I put 6 on a system with 1600w PSU?

[Mulzatas]

Without mod, according to the OP:

"My nano rig (6 x Nano) would do around 170Mh/s "give or take" on Ethereum (stock settings) while pulling 6.8Amps from the wall!
So that's around 1500watt."

[citronick]

Without mod, according to the OP:

"My nano rig (6 x Nano) would do around 170Mh/s "give or take" on Ethereum (stock settings) while pulling 6.8Amps from the wall!
So that's around 1500watt."

thanks - need just that confirmation before clicking that ENTER button to purchase some of these Nanos.

Btw, I know that OP using Sapphire and that works with mod, would other brands like XFX or Gigabtye, Asus be worth trying out?

I noticed there is no MSI for Nanos on Amazon or Newegg. Damn shame, MSI makes good stuff.

[Eliovp]

Without mod, according to the OP:

"My nano rig (6 x Nano) would do around 170Mh/s "give or take" on Ethereum (stock settings) while pulling 6.8Amps from the wall!
So that's around 1500watt."

thanks - need just that confirmation before clicking that ENTER button to purchase some of these Nanos.

Btw, I know that OP using Sapphire and that works with mod, would other brands like XFX or Gigabtye, Asus be worth trying out?

I noticed there is no MSI for Nanos on Amazon or Newegg. Damn shame, MSI makes good stuff.

Hey Citronick,

Doesn't matter what brand you choose. They're all reference designs anyway. The only thing that differs is the Sticker on the fan.

I chose Sapphire because i got the best deal with them.

Greetings!

[Maticul]

If you mod the AMD R9 390 memory controller voltage or the memory voltage with -150 mV, how much can you save at 1200 MHz memory frequency?

[Eliovp]

If you mod the AMD R9 390 memory controller voltage or the memory voltage with -150 mV, how much can you save at 1200 MHz memory frequency?

I will write my findings for the 390 mod later

Personal things are taking a lot of my time right now, will definitely report back!

Greetings

[Termie]

Tried your Nano BIOS right now at my MSI, the conservative 100/100 version.
Flashed, reboot -> Game over. No screen, no windows, 100% fan speed, thats all.
Flashed back the org. ROM after using dual BIOS switch at card, fortunately it runs again now.

So "thanks" for the fright and 1/2 hour wasted mining time.

[citronick]

Without mod, according to the OP:

"My nano rig (6 x Nano) would do around 170Mh/s "give or take" on Ethereum (stock settings) while pulling 6.8Amps from the wall!
So that's around 1500watt."

thanks - need just that confirmation before clicking that ENTER button to purchase some of these Nanos.

Btw, I know that OP using Sapphire and that works with mod, would other brands like XFX or Gigabtye, Asus be worth trying out?

I noticed there is no MSI for Nanos on Amazon or Newegg. Damn shame, MSI makes good stuff.

Hey Citronick,

Doesn't matter what brand you choose. They're all reference designs anyway. The only thing that differs is the Sticker on the fan.

I chose Sapphire because i got the best deal with them.

Greetings!

thanks - will report soon on 6 nano rigs under single 1600w using your mod - nothing aggressive but I want to be as near to the 180MHs mark per rig.