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Author Topic: R9 Nano Modded Rom  (Read 60845 times)
lawrencelyl
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June 30, 2016, 12:21:27 AM
 #401


Anyhow, got a new rom, 1.5Mh speed increase per card for Ethereum at the same power usage Wink, in my case, that's 8Mh extra per rig which is a lot Wink

will release it soon!

Greetings!

Hi Eliovp,
How's the status on the new rom? Just wondering...

Oh yeah :p i'll share it tomorrow, forgot about that Smiley
Can't wait for tomorrow  Grin
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June 30, 2016, 07:16:51 AM
 #402


Anyhow, got a new rom, 1.5Mh speed increase per card for Ethereum at the same power usage Wink, in my case, that's 8Mh extra per rig which is a lot Wink

will release it soon!

Greetings!

Hi Eliovp,
How's the status on the new rom? Just wondering...

Oh yeah :p i'll share it tomorrow, forgot about that Smiley
Can't wait for tomorrow  Grin

It is already "tomorrow". But we have patience.

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Eliovp (OP)
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June 30, 2016, 09:50:41 AM
 #403

Ok.

New rom release, tighter timings.

Tests have been done on 15.12 drivers which i find are the overall best drivers available.
Also done a test on 16.4.1 and that's also ok.

16.1.1 & 16.6.* not. So if you have these, speed won't be the same.


Before, per card @ core 800 , speed Ethereum: 22Mh
Now, 23.5Mh.

Power draw, exactly the same.

Included a few roms in the package.

Link: -Here-


Greetings!

Next BillG
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June 30, 2016, 11:19:12 AM
 #404

Ok.

New rom release, tighter timings.

Tests have been done on 15.12 drivers which i find are the overall best drivers available.
Also done a test on 16.4.1 and that's also ok.

16.1.1 & 16.6.* not. So if you have these, speed won't be the same.


Before, per card @ core 800 , speed Ethereum: 22Mh
Now, 23.5Mh.

Power draw, exactly the same.

Included a few roms in the package.

Link: -Here-


Greetings!

Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference.

How are the memory straps? Is that every 125 MHz or something else?
ldw-com
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June 30, 2016, 12:55:26 PM
 #405

Ok.

New rom release, tighter timings.

Tests have been done on 15.12 drivers which i find are the overall best drivers available.
Also done a test on 16.4.1 and that's also ok.

16.1.1 & 16.6.* not. So if you have these, speed won't be the same.


Before, per card @ core 800 , speed Ethereum: 22Mh
Now, 23.5Mh.

Power draw, exactly the same.

Included a few roms in the package.

Link: -Here-


Greetings!

Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference.

How are the memory straps? Is that every 125 MHz or something else?

250-400-500 with latest rom
Next BillG
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June 30, 2016, 01:16:12 PM
 #406

Ok.

New rom release, tighter timings.

Tests have been done on 15.12 drivers which i find are the overall best drivers available.
Also done a test on 16.4.1 and that's also ok.

16.1.1 & 16.6.* not. So if you have these, speed won't be the same.


Before, per card @ core 800 , speed Ethereum: 22Mh
Now, 23.5Mh.

Power draw, exactly the same.

Included a few roms in the package.

Link: -Here-


Greetings!

Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference.

How are the memory straps? Is that every 125 MHz or something else?

250-400-500 with latest rom

So the 300 and 260 will use the same memory strap. When I change the frequency to 900/300 instead of 900/260, the hash rate will be 25MH/s instead of 26.4. Quite strange.
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June 30, 2016, 01:48:58 PM
 #407

Ok.

New rom release, tighter timings.

Tests have been done on 15.12 drivers which i find are the overall best drivers available.
Also done a test on 16.4.1 and that's also ok.

16.1.1 & 16.6.* not. So if you have these, speed won't be the same.


Before, per card @ core 800 , speed Ethereum: 22Mh
Now, 23.5Mh.

Power draw, exactly the same.

Included a few roms in the package.

Link: -Here-


Greetings!

Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference.

How are the memory straps? Is that every 125 MHz or something else?

250-400-500 with latest rom

So the 300 and 260 will use the same memory strap. When I change the frequency to 900/300 instead of 900/260, the hash rate will be 25MH/s instead of 26.4. Quite strange.

Yeah that's because you're using 900 as core clock.. timing changes when using that core clock..
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June 30, 2016, 02:03:40 PM
 #408



Yeah that's because you're using 900 as core clock.. timing changes when using that core clock..

Hi, that's new to me! How can I calculate the mem clock from the core?
I am currently using 850 core clock with the old rom. What's the recommended mem clock? And how does it change with the new rom?

And thanks for sharing the new rom! I hope I'll find some time to test this weekend!
Cheers,
Talan
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June 30, 2016, 03:57:46 PM
 #409

Ok.

New rom release, tighter timings.

Tests have been done on 15.12 drivers which i find are the overall best drivers available.
Also done a test on 16.4.1 and that's also ok.

16.1.1 & 16.6.* not. So if you have these, speed won't be the same.


Before, per card @ core 800 , speed Ethereum: 22Mh
Now, 23.5Mh.

Power draw, exactly the same.

Included a few roms in the package.

Link: -Here-


Greetings!

Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference.

How are the memory straps? Is that every 125 MHz or something else?

250-400-500 with latest rom

So the 300 and 260 will use the same memory strap. When I change the frequency to 900/300 instead of 900/260, the hash rate will be 25MH/s instead of 26.4. Quite strange.

Yeah that's because you're using 900 as core clock.. timing changes when using that core clock..

Is that timing change due to the core frequency happens only in the Nano graphics cards? 260 and 300 are within 250-400.

lawrencelyl
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July 01, 2016, 01:03:14 PM
 #410

With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM.
Pretty close to Eliovp's claim  Wink
agente
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July 01, 2016, 01:09:37 PM
 #411

With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM.
Pretty close to Eliovp's claim  Wink

me too!

Thanks Eliovp!!  Grin
RastoMan
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July 01, 2016, 01:11:13 PM
 #412

With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM.
Pretty close to Eliovp's claim  Wink

What is the hash rate, if you change to 900/260 MHz or 900/250 MHz or 900/300 MHz?
lawrencelyl
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July 02, 2016, 04:50:18 AM
 #413

With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM.
Pretty close to Eliovp's claim  Wink

What is the hash rate, if you change to 900/260 MHz or 900/250 MHz or 900/300 MHz?
I did try 900/300MHz for a while, got around 25.8MH/s
dumpida
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July 02, 2016, 07:45:58 AM
 #414

With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM.
Pretty close to Eliovp's claim  Wink

What is the hash rate, if you change to 900/260 MHz or 900/250 MHz or 900/300 MHz?
I did try 900/300MHz for a while, got around 25.8MH/s

If you try 900/260, you might get 26.x MH/s.

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Grim
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July 03, 2016, 05:42:21 PM
 #415

About Memory voltage for Tahiti.

Any idea where to look at in the bios (hex edit) to change the mvddc (memory voltage) of Tahiti cards (7950,7970,280,280x).

Some run at 1500mv and some run at 1600mv.
(Afterburner lets you adjust only +/- 100mv mvddc).

So eg. you can't set 1400mv for cards that come with 1600mv stock.

A "standard" bios can be found here:
https://www.techpowerup.com/vgabios/124572/ati-hd7950-3072-120706


Sorry for the off topic post but maybe you can have a quick glance at it.  Grin
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July 04, 2016, 12:56:58 PM
 #416

About Memory voltage for Tahiti.

Any idea where to look at in the bios (hex edit) to change the mvddc (memory voltage) of Tahiti cards (7950,7970,280,280x).

Some run at 1500mv and some run at 1600mv.
(Afterburner lets you adjust only +/- 100mv mvddc).

So eg. you can't set 1400mv for cards that come with 1600mv stock.

A "standard" bios can be found here:
https://www.techpowerup.com/vgabios/124572/ati-hd7950-3072-120706


Sorry for the off topic post but maybe you can have a quick glance at it.  Grin

I also want to know. I have quite a few 280X. I run them at 1250MHz. There is no need for the memory voltage to be above 1500mV.

 
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July 04, 2016, 01:27:29 PM
 #417

About Memory voltage for Tahiti.

Any idea where to look at in the bios (hex edit) to change the mvddc (memory voltage) of Tahiti cards (7950,7970,280,280x).

Some run at 1500mv and some run at 1600mv.
(Afterburner lets you adjust only +/- 100mv mvddc).

So eg. you can't set 1400mv for cards that come with 1600mv stock.

A "standard" bios can be found here:
https://www.techpowerup.com/vgabios/124572/ati-hd7950-3072-120706


Sorry for the off topic post but maybe you can have a quick glance at it.  Grin

I also want to know. I have quite a few 280X. I run them at 1250MHz. There is no need for the memory voltage to be above 1500mV.

I don't have a tahiti based rom with lower memory voltage. Not even sure if that's even possible. probably same thing like with Hawaii, you don't lower the memory voltage but you lower the voltage given to the controller which gives the memory it's voltage.

Anyhow, i do have a modified 280x rom with tighter timings and undervolted core voltage.
Works perfectly over here at core 1100 mem 1500.

Link: -Here-

Flash at your own risk. I'm not responsible for any damage done.
If you can't afford to brick your card, then don't flash.
If you don't trust it, don't flash.


If you're like me and you love to experiment, go ahead Smiley

Greetings!
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July 07, 2016, 01:33:10 PM
 #418

Is this bios working on Fury (non-nano) also?
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July 07, 2016, 05:00:15 PM
 #419

Is this bios working on Fury (non-nano) also?

It will not work on Fury, they have different number of Cores. Fury also has reference and non refererence cards.
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July 10, 2016, 07:46:45 PM
 #420

Has anyone tested the 390 cards? What is the best clocks and voltages.?

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