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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 70

post #691 of 3466
Thread Starter 
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!

EVV Voltages based on leakage
post #692 of 3466
Quote:
Originally Posted by PCIEgate View Post

Yeah, i just bricked and un-bricked my card too. The 8GB flash worked correctly but re-flash to my 4GB backup just corrupted the card somehow, seems either a corrupt backup or a problem with ATIFlash.
I used a CH341A programmer and a soic test clip.

Might be useful:
BIOS chip is a Gigadevice GD25Q41B -> Datasheet

It's located on the back:



Which clip are you using for programming the GD25Q41B? pomona one?
Edited by agtugo - 9/30/16 at 8:54am
post #693 of 3466
Thread Starter 
someone with a reference 470(hynix/elpida) can test the vram bandwidth with OCLMembench(download section) and post the result ?

i want to test some mixed/tighter timings for the 470
post #694 of 3466
Quote:
Originally Posted by generaleramon View Post

someone with a reference 470(hynix/elpida) can test the vram bandwidth with OCLMembench(download section) and post the result ?

i want to test some mixed/tighter timings for the 470

I don't want to flash my stock bios but it's like 140gb/s when I tested yesterday
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post #695 of 3466
Well ****. Seems like my XFX card is throttling on voltage. Running +150 power limit and temp limit at 90C, the card throttles at any frequency (even 1200mhz) when trying +100(or 96 as it sets it to) mV when temps are at 80C. What to do?
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post #696 of 3466
Quote:
Originally Posted by webtag View Post

Well ****. Seems like my XFX card is throttling on voltage. Running +150 power limit and temp limit at 90C, the card throttles at any frequency (even 1200mhz) when trying +100(or 96 as it sets it to) mV when temps are at 80C. What to do?

better cooling or run less voltage, i think 94c is the max temp in bios. +100mv can get REALLY toasty on anything without good cooling.
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post #697 of 3466
Quote:
Originally Posted by dolleminer View Post

@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?

@dolleminer Stability wise, the miner does not crash whatsoever, stable as a rock. The gpu memory errors (EDC) appear in HWiNFO64, as of right now, I have 6 memory errors after 70 hours of continuous flawless mining.

Both cards run at 900 MHz@820 mV, 2000 MHz memory clock@1000 mV.

The fans of the hottest card are set in wattman, at 1200-2200 rpm, average 1580 RPM, target temperature 70 ºC, average cpu temperature is 68 ºC. The cooler card is set 1200-2200,average 1570 RPM, target temperature 65 C, average 63 C. VRM temperature in both cards is 68 ºC.
Edited by mrplc - 9/30/16 at 12:20pm
post #698 of 3466
Quote:
Originally Posted by webtag View Post

Well ****. Seems like my XFX card is throttling on voltage. Running +150 power limit and temp limit at 90C, the card throttles at any frequency (even 1200mhz) when trying +100(or 96 as it sets it to) mV when temps are at 80C. What to do?

you are too close to temp target limit


its not an abrupt clock down when running hot.

Id say it starts 10-15*C away from the max at the least.


It also sounds like too much voltage potentially.

my card shipped with a 1266MHz core clock, and with zero powerlimit increase, could not maintain that clock. I went from stock 1.175 core voltage to 1.100 and it maintained that 1266MHz clock no problem, did not flicker the slightest over 2 hours of heaven and valley


I suggest dropping your core voltage slightly, and retest. Ive seen reference cards hit 1375MHz on 1.150 volts, so there is merit to being conservative at times.
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post #699 of 3466
EVV Voltages based on leakage

Thanks first of all for the reply!
Is there a way to lets say calculate a given mV (1000 for example) into that EVV format? Or could I simply put the mV values I want instead of the EVV for each state?
post #700 of 3466
Quote:
Originally Posted by simcity4 View Post



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

I have the same problem with my nitro 480 4GB elpida memory. how to do with this bug

here is original 480 4GB Elpida bios

Original-480-4GB-Elpida-bios.zip 111k .zip file
Edited by stanchobs - 10/1/16 at 2:02am
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