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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 178

post #1771 of 3317
Quote:
Originally Posted by seamuss View Post

I flashed several rx 470 with samsung without any problem, now I have found an elpida and hynix that when I open the bios the speed values ​​do not appear well and I appear as several vram schemes, to choose, what does this mean?



My Sapphire RX460 with Hynix memory shows the same.

While the Sapphire RX480 with Hynix and XFX RX470 with Samsung shows normally...
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post #1772 of 3317
Quote:
Originally Posted by chris89 View Post

What method are you using to find the offset locations in hex? I can help you.

I am using this hints:
https://bitcointalk.org/index.php?topic=1656561.20

I am very new in hex, so I would be very gratefull for help and hints step by step,

Quote:
Originally Posted by bardacuda View Post

Is there any particular model of 470 4GB that is guaranteed to have Samsung memory and not Hynix/Elpida/Micron? I'm thinking of maybe picking some up for mining after the 570s get released if I can get a good price but want to be sure what I'm getting will have Samsung.
I'm afraid not.. maybe you could try to buy second hand..

Quote:
Originally Posted by bardacuda View Post

Is there any particular model of 470 4GB that is guaranteed to have Samsung memory and not Hynix/Elpida/Micron? I'm thinking of maybe picking some up for mining after the 570s get released if I can get a good price but want to be sure what I'm getting will have Samsung.
Quote:
Originally Posted by seamuss View Post

I flashed several rx 470 with samsung without any problem, now I have found an elpida and hynix that when I open the bios the speed values ​​do not appear well and I appear as several vram schemes, to choose, what does this mean?



Hey! Please use Polaris 1.4.1 wink.gif
Edited by adamvx - 4/3/17 at 5:03am
post #1773 of 3317
Quote:
Originally Posted by seamuss View Post

I flashed several rx 470 with samsung without any problem, now I have found an elpida and hynix that when I open the bios the speed values ​​do not appear well and I appear as several vram schemes, to choose, what does this mean?


Quote:
Originally Posted by ku4eto View Post

My Sapphire RX460 with Hynix memory shows the same.

While the Sapphire RX480 with Hynix and XFX RX470 with Samsung shows normally...

I think atiflash is not reading well bios, another bios reading software to try?
post #1774 of 3317
Quote:
Originally Posted by seamuss View Post


I think atiflash is not reading well bios, another bios reading software to try?
As I mention above: Please try Polaris 1.4.1
post #1775 of 3317
Quote:
Hey! Please use Polaris 1.4.1 wink.gif



Thanks, it seems that 1.4.1 at least if it shows that it has 2 bios, but it still does not mark the speed, you?
post #1776 of 3317
Quote:
Originally Posted by adamvx View Post

Quote:
Originally Posted by bardacuda View Post

Is there any particular model of 470 4GB that is guaranteed to have Samsung memory and not Hynix/Elpida/Micron? I'm thinking of maybe picking some up for mining after the 570s get released if I can get a good price but want to be sure what I'm getting will have Samsung.
I'm afraid not.. maybe you could try to buy second hand..

You sure? Not even Sapphire Nitro OC? Thought I read somewhere that all the MSI Armors that have an 8-pin power connector are Samsung as well.
post #1777 of 3317
After spending a bit of time tweaking I think I'm done with my silent rom. It's the Nitro+ silent profile with a -62.50mv undervolt, stock clocks, generaleramons 2.1 timings, and 2125MHz memory clock. All in all a small bump in performance with a tiny reduction in power. I hope it won't end up crashing on desktop in a few weeks, since the reduction in voltage applies to the whole range...


I wonder if the "stock" voltage for 1266MHz has been reduced with newer drivers. It's at 1038mV now, I could swear it was at 1041mV a bit earlier, and ~1100mV when I first got the card. Or maybe I'm remember things wrong.
Edited by Loladinas - 4/3/17 at 11:13am
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post #1778 of 3317
Any clue about this BIOS? I don't understand the memory timings in this BIOS. I have modded a lot of RX480/470 BIOS with PBE, but the timings in this one seem odd to me. I have also tried PBE 1.4.1, but also no luck.

The BIOS is from an XFX RX480 with 8G and reference design. The label on the back plate says:
RX - 480M8BA VA.2
RADEON RX 480 Core 8 GB d5 3xDP HDMI

XFXRX-480M8BAVA2.zip 109k .zip file
post #1779 of 3317
Strange.,.. looks like hynix mixed with samsung 0.o
Did you try to mode by hex ?

https://anorak.tech/t/anoraks-amd-vbios-hex-modification-tutorial/126/7
post #1780 of 3317
@Loladinas

I have exact the same score with -54mV and memory set to 2080 with uber v2.1. Maybe you should switch to uber v2.1, you will have substential increse on memory at 2125 and it shouldn't impact power efficiency. Unfortunately may memory report some EDC errors on 2080+ probably due to overheating of memory. If i run benchmarks on cold i do not have any errors.

http://www.3dmark.com/3dm/19032666
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