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Polaris Bios Editing ( RX5xx / RX4xx )

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post #5361 of 5365 (permalink) Old 02-16-2020, 09:17 AM
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Anyone knows how to edit display outputs? I want to try to make a BIOS without any display outputs, like the Sapphire Nitro mining ones.


But i can't find where are the changes from a normal one, does anyone knows?
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post #5362 of 5365 (permalink) Old 02-22-2020, 11:32 AM - Thread Starter
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Quote: Originally Posted by weleh View Post
Hello all,

I have an RX580 Nitro+ 4GB version with Elpida memory.


The above settings are the most stable ones ie: do not give me memory errors on HWInfo or any artifacts.
I can go to 2000 memory but I start to get memory errors in HWInfo eventhough I don't see any artifacts or loss of performance.

Superposition scores on High are around 6200-6270 depending on memory speed (1950 vs 2000)

AMD drivers do not let me push further than 1.2v on memory so I cannot get rid of memory errors.

I was thinking about using SRBPolaris or something else to maybe tighten the timings or mess with PPT however I don't know anything about it and every guide I see is about undervolting and overclocking for mining performance.

I'm looking at gaining gaming performance and was wondering if someone could either mod my BIOS or help me do it. I am willing to pay a small feel through PayPal.

Hit me up guys.

the "memory voltage" you see is just a "core voltage floor", so when the memory is at max clock the core voltage is not allowed to go lower than that...is better to set it as low as possible.
You MIGHT solve the memory errors upping the IMC voltage a little (950-1000mv stock, must be done in the bios), but it never really helped on my cards...
the real memory voltage is fixed at 1.5v by the "GS7256" on the back of the card. you need to volt mod it to change it(done it 2 days ago actually, tested really fast 1.6v and 1.63v, i gained 25-35mhz more or less, using UberMix v3.3 > 242GB/[email protected])

Last edited by generaleramon; 02-22-2020 at 11:36 AM.
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post #5363 of 5365 (permalink) Old 03-18-2020, 12:21 AM
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i am super late to the game. I have played wit my old MSI r9 390 bios back in the day, got it to work as good as an r9 390x if not better. What do I need to read up on for modding the r9 590 PowerColor Red Dragon bios? I know i need polaris editor, and it seems a patch to get the driver to work with a modded card? I currently have 1909 windows and 20.2 driver.

Sorry, I know, read...but there is 530 some odd pages.

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post #5364 of 5365 (permalink) Old 03-22-2020, 04:47 PM
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Quote: Originally Posted by p4n0rz View Post
Anyone knows how to edit display outputs? I want to try to make a BIOS without any display outputs, like the Sapphire Nitro mining ones.


But i can't find where are the changes from a normal one, does anyone knows?
They actually aren't changed much at all. I broke this down regarding the VBIOS in my Reddit thread here: https://www.reddit.com/r/gpumining/c...detailed_look/
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post #5365 of 5365 (permalink) Old 03-27-2020, 08:10 PM
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I did this and my xfx rx 580 is running at 1436/2120 my question is what are people getting for average on the msi armor version of the 580's after this mod?

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