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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 69

post #681 of 3450
Quote:
Originally Posted by bill1971 View Post

yes but is 50 $ cheeper.
I tried to get a 4GB reference card, but they were gone like in no time. And ONLY the reference 4GB is flashable to 8GB. Since this version never was planned anyway, AMD just flashed a different bios to their 8GB cards. If there still are some 4GB's available, and i would definitely doubt that, go ahead and buy them! All of them!
But don't get the idea that would work on any other custom design.. it never will.
Edited by hellm - 9/29/16 at 2:31am
post #682 of 3450


Hi
i have problem change Strap my card is Sapphire RX 480 Nitro + OC 4GB and is elpida memory Polaris BIOS Editor 1.4 don't recognize strap
480.zip 111k .zip file
can someone help change straps from 1625 mhz to 2000mhz strap
Edited by simcity4 - 9/30/16 at 12:05am
post #683 of 3450
Anybody have info about the exact values needed in Polaris Bios Editor for the GPU Mv section?

I ask because, to me it seems the first frequency has the correct voltage, namely, for 300 Mhz I have 800 Mv, but for all the rest, the numbers are in some other shape or form (608 Mhz has 65282??)

Anyone modified those Mv fields? An if yes, what values, or what formula was used for determining the correct ones?

Help would be appreciated.

Cheers!

post #684 of 3450
HI!
I own a XFX RX480 GTR Black Edition. I have a problem when trying to use a custom bios. After flashing the custom bios the system won't post and I get a beeping message from my mobo. What can cause this?
Driver 16.9.2
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post #685 of 3450
Did you backup your original BIOS?

flash that back on.


Then if it works, use above info in post #672 and go that route. That should open up the opportunity to further test the card's real capabilities
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post #686 of 3450
I did flash back to the original bios, and the card boots normally. I tried what was described in post #672 without luck. The power limit stayed at 0%. Tried with values 64 and 96
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post #687 of 3450
I just did #672

here is what I did for as much fool proofness as possible.


Downloaded and installed MSI AB

right-clicked desktop, went to radeon settings.

reset card settings

exited radeon settings.

open MSI AB

click reset settings (counter-clockwise arrow)

Rebooted.


let desktop chill for a minute after boot.

Open MSI AB, opened settings, clicked "extend overclocking limits"

Rebooted

went to regedit from run menu, note, I did the right click and "run administrator"

use the find function, copied the reg entry above without the brackets.

Mine showed a 0000 and a 0001, presumably 0000 for my rx480, and 0001 for my 370

single left click on 0000 or whatever 4 digit number is top there.

on right, regedit will show options

scroll down to the softpowerplay table

right click, choose modify


I went down to line 18, and over to the right. highlight the number there. My number was 14. I highlighted 14, typed 32, and that was it.



Rebooted, gave desktop a minute to settle, opened up MSI AB, boom, settings allowed!. Closed MSI AB, BOOM, power limti allowed to 150%, memory to 2600MHz


Lemme know if that works for ya, sometimes it takes a different view point to click. It does for me quite often lol

EDIT this allows setting the power limit TO 150%, not actually making it 150%

Radeon settings still showed 0% for me, but allows me to set up to 150% now. Its set right now at 150% and currently running heaven benchmark to get some heat
Edited by mattliston - 9/29/16 at 1:11pm
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post #688 of 3450
Yeaaa
@generaleramon.
New sapphire's with elpida memory.
Could we see an update for polaris editor? smile.gif
Thanks!
post #689 of 3450
Quote:
Originally Posted by Felix39 View Post

Anybody have info about the exact values needed in Polaris Bios Editor for the GPU Mv section?

I ask because, to me it seems the first frequency has the correct voltage, namely, for 300 Mhz I have 800 Mv, but for all the rest, the numbers are in some other shape or form (608 Mhz has 65282??)

Anyone modified those Mv fields? An if yes, what values, or what formula was used for determining the correct ones?

Help would be appreciated.

Cheers!


@flex39 that is because Sapphire does not have power control like ASUS ROG RX 480.
If you want to change the Mv of each core you should download Watttool VRMtool.


@simcity You can download HxD and find the 2000/2000 strap and replace it with the 1625/2000 strap
post #690 of 3450
Quote:
Originally Posted by mrplc View Post

I have 2 x Sapphire RX 480 Nitro+ OC 8GB, and one of them gives 3-4 memory errors per day (ethereum mining workload), at stock memory clocks. I even have the feeling that the error rate is lower at 2050 MHz, than at 2000.

The other goes happily to 2250 without errors for days, but with a catch: in must be put at 100% load at stock clocks, and then, manually set in wattman, to 2250 MHz. After 24-48 hours, suddenly, it starts giving errors, in the low hundreds per hour, until the GPU returns to idle, after that, it keeps giving zero errors at 2250 for days again.

Is it normal in this scenario to get errors at stock, even if they are a very small amount? Can a modded bios loose memory timings enough to get zero errors and still be gaining performance? What modification is needed in memory timings? Thanks.

@mrplc I am mine aswel but on the ethereum classic network. I never had the problem what you are facing. I run the Nitro's for 2 weeks stable right now. And I am still working on a better memory strap.
Your problem could be many things. Do you controll the fans by yourself or is it automatcly?
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