R9 Nano Modded Rom

[Zitdadast]

How low can the memory voltage go? What was the original memory voltage? Just want to save some energy.

Well i'm @ -150mV at this moment and still running stable. Will let you know when i hit bottom..


Anyhow, for those that want to see some more in stead of some numbers i wrote down here.

A little video showing the first Rom (the one i shared here), a quick run, nothing special, just stock rom with nothing extra changed.

Link To Movie

Turn down your sound and sorry for the "not so optimal" quality..

What is the original stock memory voltage and the value after mod with your bios editor.

For your sapphire 390 cards, what is the stock memory voltage?

[Edsemen]

I have the XFX R9 390, which I would like to reduce the memory voltage as the memory needs to run only at 1250 MHz.

[Eliovp]

How low can the memory voltage go? What was the original memory voltage? Just want to save some energy.

Well i'm @ -150mV at this moment and still running stable. Will let you know when i hit bottom..


Anyhow, for those that want to see some more in stead of some numbers i wrote down here.

A little video showing the first Rom (the one i shared here), a quick run, nothing special, just stock rom with nothing extra changed.

Link To Movie

Turn down your sound and sorry for the "not so optimal" quality..

What is the original stock memory voltage and the value after mod with your bios editor.

For your sapphire 390 cards, what is the stock memory voltage?

Stock memory voltage = 1.3v, i lowered it to 1.2v. Still testing and going lower to find the sweet spot

Lowering this is only possible with a hardmod.

For a 390 (hawaii) the stock memory voltage is 1.5v. Again, you cannot change this with software. You'll need to hardmod to change that.

For the 2** series you can change this with software.

[Bazelak]

How low can the memory voltage go? What was the original memory voltage? Just want to save some energy.

Well i'm @ -150mV at this moment and still running stable. Will let you know when i hit bottom..


Anyhow, for those that want to see some more in stead of some numbers i wrote down here.

A little video showing the first Rom (the one i shared here), a quick run, nothing special, just stock rom with nothing extra changed.

Link To Movie

Turn down your sound and sorry for the "not so optimal" quality..

What is the original stock memory voltage and the value after mod with your bios editor.

For your sapphire 390 cards, what is the stock memory voltage?

Stock memory voltage = 1.3v, i lowered it to 1.2v. Still testing and going lower to find the sweet spot

Lowering this is only possible with a hardmod.

For a 390 (hawaii) the stock memory voltage is 1.5v. Again, you cannot change this with software. You'll need to hardmod to change that.

For the 2** series you can change this with software.

I remembered that you said for the Sapphire R9 390 cards, you can modify the memory voltage with MSI afterburner?

[Eliovp]

Mm don't think i ever said that.

What i could have said is that you can lower the core clock voltage to a minimum of -100mV for Fiji.

You canNot change memory voltage with software. You can only do this with a hardmod. (Fiji and 3** series).

[Zitdadast]

Mm don't think i ever said that.

What i could have said is that you can lower the core clock voltage to a minimum of -100mV for Fiji.

You canNot change memory voltage with software. You can only do this with a hardmod. (Fiji and 3** series).

Have you mod the memory voltage of the R9 390 cards? If so, do you mind upload a bios file to share with us?

[Eliovp]

Mm don't think i ever said that.

What i could have said is that you can lower the core clock voltage to a minimum of -100mV for Fiji.

You canNot change memory voltage with software. You can only do this with a hardmod. (Fiji and 3** series).

Have you mod the memory voltage of the R9 390 cards? If so, do you mind upload a bios file to share with us?

I haven't, sorry.

I could look into this later though.

[Bazelak]

Mm don't think i ever said that.

What i could have said is that you can lower the core clock voltage to a minimum of -100mV for Fiji.

You canNot change memory voltage with software. You can only do this with a hardmod. (Fiji and 3** series).

Have you mod the memory voltage of the R9 390 cards? If so, do you mind upload a bios file to share with us?

I haven't, sorry.

I could look into this later though.

Thanks in advance. If we can undervotage the R9 390, we may save 20W per card as we just need less than 1250MHz for Ethereum mining.

[Nikolaj]

hi eliovp

at first, congrats for the nice achievement

It must be said that the nano it's very interesting regarding the power requirements, especially with the stock downvolt capability.

Considering the measurements in W as the PEAK values, and the Speed in MH/GH as the minimum ones (average ones a 10% more), I managed to let it work:

ETH - dagger hashimoto: from 88.5W(16.5MH) to 232W(26.5)
DCR - blake256 8: from 202.25W (1,980GH), and higher than 217.25W (2,264GH)
X11 - no more than 7.1MH on nicehash 5.1.0, where it's reported at 20MH (WIN 10 Pro 64 bit and WIN 8.1 Ultimate 64 bit)

Have you made tests in regard (X11 nicehash)?

About power consumption of R9 390 and Fury/FuryX, have you gathered any reliable, real, information?

An R9 290 will need at least 289W on X11(13.5MH) and the same amount with ETH(25)

Thank you

[Eliovp]

hi eliovp

at first, congrats for the nice achievement

It must be said that the nano it's very interesting regarding the power requirements, especially with the stock downvolt capability.

Considering the measurements in W as the PEAK values, and the Speed in MH/GH as the minimum ones (average ones a 10% more), I managed to let it work:

ETH - dagger hashimoto: from 88.5W(16.5MH) to 232W(26.5)
DCR - blake256 8: from 202.25W (1,980GH), and higher than 217.25W (2,264GH)
X11 - no more than 7.1MH on nicehash 5.1.0, where it's reported at 20MH (WIN 10 Pro 64 bit and WIN 8.1 Ultimate 64 bit)

Have you made tests in regard (X11 nicehash)?

About power consumption of R9 390 and Fury/FuryX, have you gathered any reliable, real, information?

An R9 290 will need at least 289W on X11(13.5MH) and the same amount with ETH(25)

Thank you

Hey Nikolaj

I managed to get that 88.5W you have there for Ethereum, to get the same, well even less power usage but @ 22-23Mh/s.
So you could go A LOT lower on power usage vs performance.

Regarding Blake, i haven't done any testing for Decred lately, only when it just came out.

X11, well to be honest, tried to run it earlier this day on a rig of mine. But Failed miserably, must be the drivers because i know i have done a test in the past with older drivers.

Here is a screenshot of that test
http://s29.postimg.org/a745dros7/X11.png

I did however manage to run Quark on a 6xNano rig.

here's the picture of that.
i included the config for that (X11 config is a bit different, i'll get you that as well)
https://drive.google.com/file/d/0B_cBBoZ_PTwOa2xjMXFQWktnYi1rQUh4SERpdWNmSllTV0I0

As you can see in that picture, only gpu 1 & 2 are doing what they need to do.
That is because of the miner. It's a hack, it works if you have less than 3 cards, but if you have more or 3 it starts to screw around.
As you can see in this picture, it screws around with 3 cards as well, Third card is doing it alright.
(this is also an older test with older drivers.)
http://s29.postimg.org/wrd0jqypj/quark.png

X11 Config for Sgminer 5.1.0 (nice hash release)

Code:

{

"pools" :
 [
                       
{
               
 "name" : "NiceHash_X11_Fixed",
                
"url" : "stratum+tcp://x11.eu.nicehash.com:3336",
                
"user" : "BTC ADDRESS",
                
"pass" : "x",
                
"algorithm" : "x11mod",
                
"nfactor" : "10",
                
"xintensity" : "512",
                               
"worksize" : "64",
                
"gpu-threads" : "1"
        
}
],
"keccak-unroll" : "0",

"hamsi-expand-big" : "4",
"lookup-gap" : "2",

"log-show-date" : true,

"debug-log" : false,

"failover-only" : true,

"failover-switch-delay" : "300",

"queue" : "0",

"api-listen" : "true",

"api-port" : "4028",

"api-allow" : "W:127.0.0.1"

}

Hope this helps a bit.

[blastbob]

Will you share the latest modded rom that is stable?

The main link isnt working anymore either.

[Eliovp]

Will you share the latest modded rom that is stable?

The main link isnt working anymore either.

Not yet sure about the latest one. Still testing to get it perfectly stable.

The Nanomod.zip link in your OP doesn't seem to work?

Link is fixed!

Click it again

[blastbob]

Great success.

I have some problems with the driver crashing.

Using windows 7 64 SP1 with Radeon 15.12 drivers.

It usualy crash when i press the start menu or file explorer etc, but if i get the mining started its stable until i cancel the program. then it crashes and hangs the computer.

Strange

EDIT: Fixed with disabling Aero..

[zzzzzzzzzz]

Will you share the latest modded rom that is stable?

The main link isnt working anymore either.

Not yet sure about the latest one. Still testing to get it perfectly stable.

The Nanomod.zip link in your OP doesn't seem to work?

Link is fixed!

Click it again

Thanks!

[Eliovp]

Great success.

I have some problems with the driver crashing.

Using windows 7 64 SP1 with Radeon 15.12 drivers.

It usualy crash when i press the start menu or file explorer etc, but if i get the mining started its stable until i cancel the program. then it crashes and hangs the computer.

Strange

EDIT: Fixed with disabling Aero..

Haha, you were quicker than me.

I know it happens, had it too. Further it should run smoothly.

Have fun!!

[Nikolaj]

thank you eliovp, unfortunately it's not working.. still ..

I'll go to bed but I'll try to check it when I have some spare time.

Thank you


Have a good night/day

[Eliovp]

thank you eliovp, unfortunately it's not working.. still ..

I'll go to bed but I'll try to check it when I have some spare time.

Thank you


Have a good night/day

We will sorten things out. Get on IRC and we'll talk about your issues and try to solve them.

I'm off now though. We'll talk later!

[Q_R_V]

Very nice results, i am impressed with your modification. Did you tested stability under other circumstances than ethereum mining? For example other Dagger coin (Soil or Shift)? What about other, more energy consuming algos (DCR), are they also stable with modded bios?

[Eliovp]

Very nice results, i am impressed with your modification. Did you tested stability under other circumstances than ethereum mining? For example other Dagger coin (Soil or Shift)? What about other, more energy consuming algos (DCR), are they also stable with modded bios?

Hey,


Yeah i have tested other algo's as well.

They all work perfect with my bios.

The only difference is power usage. Which is obvious.

[Q_R_V]

Awesome! Your mod is going to my "to do list". What OS are you running? win10?
Thanks