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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 220

post #2191 of 3452
Quote:
Originally Posted by generaleramon View Post

i have flashed my reference xfx rx480 with the rx580 sapphire bios... it works wth.gif

EDIT:
editing rx580 bios with polaris bios editor = multicolor crash in windows load screen
manual edit with hex editor + fix checksum with HawaiiBiosReader Solved thumb.gif
Quote:
Originally Posted by Pavoz View Post

Quote:
Originally Posted by chris89 View Post

It's going to throttle no way around it but way cooler running... Set this temperature limits higher and not throttle yet temps continue well past 80-90C...

Sapphire_RX580_8GB_BIOS_73C_73C_3667RPM.zip 110k .zip file
This didn't work, flashed fine but no video after restarting

Same w/ me. Successful flash but no video on reboot. reflashed back to my stock xfx rx 480 bios. EK block for wc w/ 1400 clock currently.

@generaleramon. Did you use the sapphire bios from the techpowerup site? My reference is an xfx 1328 w/ samsung mem.
post #2192 of 3452
Quote:
Originally Posted by Mike-IRL View Post

I flashed my Sapphire reference RX 480 8GB with a Sapphire RX580 BIOS and it works, I had to downclock slightly though as my card gets too hot and throttles at 1411MHz. 1370MHz seems fine. 88.9% ASIC

i have 67% ASIC, is it worth doing for me?
post #2193 of 3452
Quote:
Originally Posted by Caffinator View Post

i have 67% ASIC, is it worth doing for me?

Guys with much lower ASIC than mine are saying it works and they can run 1411MHz fine. (edit: this doesn't mean yours will work, do it at your own risk)
I did it just to do it to be honest, might be helpful down the line but right now I don't know if it matters much.
If you're on water and you can use the extra voltage then it's pretty helpful, in my case with a stock reference cooler and a card in a fairly tight space it doesn't really matter.
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post #2194 of 3452
I found one inssue, can you guys test? While recording with Re-Live on Battlefield 1.. Crash the driver then the computer.. Just playing looks like everything fine, recording crash..
post #2195 of 3452
Quote:
Originally Posted by Xcat2008 View Post

Looks like yes. If i apply 1300 will return for 1150, if i apply 1200 stay at 1200..

On my xfx rs 480 8gb, if I put 1175, stays OK. But if I go above that it drops to 1150, similar behavior but i thought 480 limit on watt man was 1150?


For the crash with relive, maybe try lower clocks. If it doesn't crash you might have a borderline unstable overclock, because relive uses some gpu to encode.
post #2196 of 3452
Quote:
Originally Posted by Mike-IRL View Post

Guys with much lower ASIC than mine are saying it works and they can run 1411MHz fine. (edit: this doesn't mean yours will work, do it at your own risk)
I did it just to do it to be honest, might be helpful down the line but right now I don't know if it matters much.
If you're on water and you can use the extra voltage then it's pretty helpful, in my case with a stock reference cooler and a card in a fairly tight space it doesn't really matter.
guess i just dont understand whats going on, the bios doesnt unlock cores or shaders....i have unlocked bios support 1.2v core. i still cant hang on to a 1370MHz oc in a well ventilated case. so whats different about the 580 bios that makes it magically oc to 1.4ghz without problem??
post #2197 of 3452
Quote:
Originally Posted by Caffinator View Post

guess i just dont understand whats going on, the bios doesnt unlock cores or shaders....i have unlocked bios support 1.2v core. i still cant hang on to a 1370MHz oc in a well ventilated case. so whats different about the 580 bios that makes it magically oc to 1.4ghz without problem??

It doesn't work magic, just of you're able to hit 1400mhz before you will now, won't make a difference if like me you can't even reliably do 1370, still can't on 570 bios
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post #2198 of 3452
Yeah for sure 1400mhz to the core power is 250 watts... The input power is only 130 watts, since it takes low voltage high current to make up more performance efficiently...

Still need to deal with the heat of high current 250 watts internally of the gpu. That's 90C VRM and rising fast. Even special thermal applications of Ceramic Substrate still was the VRM rising in temperature.

It's not effective thermal conductivity of the heatsink material. If full copper assembly, 2Ghz no problem really...

Right now the material can maybe hold upwards of 9 watts per meter kelvin. That's like handling 90 watts input to 160 watts to the chip in low voltage high current. It can hold 90 watts input, but even 130 watts input is an issue... Such a tiny hop in input to massive current increase internal of the gpu.

Solution? well not much pretty much just a unfulfilled feeling... Epic GPU on a Radeon x1950xtx like thermals haha
post #2199 of 3452
Quote:
Originally Posted by chris89 View Post

Yeah for sure 1400mhz to the core power is 250 watts... The input power is only 130 watts, since it takes low voltage high current to make up more performance efficiently...

Still need to deal with the heat of high current 250 watts internally of the gpu. That's 90C VRM and rising fast. Even special thermal applications of Ceramic Substrate still was the VRM rising in temperature.

It's not effective thermal conductivity of the heatsink material. If full copper assembly, 2Ghz no problem really...

Right now the material can maybe hold upwards of 9 watts per meter kelvin. That's like handling 90 watts input to 160 watts to the chip in low voltage high current. It can hold 90 watts input, but even 130 watts input is an issue... Such a tiny hop in input to massive current increase internal of the gpu.

Solution? well not much pretty much just a unfulfilled feeling... Epic GPU on a Radeon x1950xtx like thermals haha

My VRMs didn't end up any warmer than normal, but I also have a nitro 470 and the VRMs should be similar or same as the nitro 570 bios I flashed. You have a reference board right?
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post #2200 of 3452
Yeah reference here... I think it was Xrelic of Zixs that modded their Nitro 480 and brought temps down a lot and could hold higher core clock and higher fps after new VRM thermal material...

I think it was @xrelic How's that thermal material thoughts on Nitro 480? Any pics of adding them?
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