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post #2491 of 3303
what if you open RX 580 8GB model that is very close to your model and you copy all the values to your bios including timings and TDP? just not the 8GB area.
post #2492 of 3303
Quote:
Originally Posted by Vento041 View Post

Keep bookmarked my post (http://www.overclock.net/t/1604567/polaris-bios-editing-rx5xx-rx4xx/2410#post_26036898) to know my progress with Powercolor bios (flashed on a Shappire RX 480 Nitro+ OC 8GB)

I gave it a try.

for anyone who want to try the flash:
"atiflash -fs -p " for any trouble with sub id. adapter nr. is mostly 0, check with atiflash -i.
you should also perform a clean uninstall via setup.exe found in the driver install files.

The Powercolor Red Devil silent bios worked fine with my reference card. But with same clocks it consumes now a lot more power, over 70W more. And therefore, it clocks down a bit, resulting in 250 points less in firestrike.

There is no point in flashing my 480 with this bios. It wasn't a readout error, since the card really did clock down. The Vcore was 1181mV max, which is also weird, wattTool says 1150mV and 2x 6,25mV offset. And it still wouldn't explain where all that power draw came from.

Update:
the high power draw reading is because of "current scale" setting. WattTool can change it from "BE" to "60" (480 ref) and than really anything is back to normal.
but i don't want to do that every time i reboot, so i need another bios.

update2:
bios from the gigabyte gaming works better with my reference 480. correct current scale and no offset, although it delivers even more vcore, up to 1200mV. wattman says 1150mV for the last 3 power states.
https://www.techpowerup.com/vgabios/191401/191401
Edited by hellm - 4/23/17 at 4:14pm
post #2493 of 3303
Quote:
Originally Posted by Hwgeek View Post

what if you open RX 580 8GB model that is very close to your model and you copy all the values to your bios including timings and TDP? just not the 8GB area.

There's no point in doing that, the only major benefit to the 580 bios over a modded 480 bios is the extra memory step. If you have a dud 480 you'll still have a dud 480
Edited by Echoa - 4/23/17 at 9:48am
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post #2494 of 3303
Almost got my RX 480 Nitro+ OC 8G bricked with that bios - https://www.techpowerup.com/vgabios/191274/191274. Flashing went like a charm and i was even able to play Fallout 4 for ~60 seconds (Ultra settings@1920x1200) but then got just a black screen and after switching to IGP atiflash reported that no adapter present in the system. PC off, recovery bios switched on, then normal boot and recovery bios off before flashing the original rom back smile.gif
post #2495 of 3303
Quote:
Originally Posted by Vento041 View Post

Keep bookmarked my post (http://www.overclock.net/t/1604567/polaris-bios-editing-rx5xx-rx4xx/2410#post_26036898) to know my progress with Powercolor bios (flashed on a Shappire RX 480 Nitro+ OC 8GB)

Hi everybody, I'm using the Powercolor Bios on a Sapphire RX480 Nitro+ OC and it is working.

My Nitro+ OC is cooled with a Corsair H55 and the NZXT Kraken G10 because the stock cooler on the Nitro is really bulls**t.
Even with the H55 the temps on the RX480 Nitro+ OC are much too high. I was able to get it running on 1370/2050 without crashing.

Now with the Powercolor Bios the card runs at 1440/2050, getting the same temps as on the RX480 Bios with 1370/2050

Play ME:A for about 4 hours, no problems or blackscreens.
Edited by Mucho - 4/23/17 at 10:59am
post #2496 of 3303
Quote:
Originally Posted by Vento041 View Post

Guys, currently I'm trying the Powercolor Red Devil RX 580 Silent bios (1355 MHz : https://www.techpowerup.com/vgabios/191274/191274, "normal" RX 580 not the "golden sample" version) on my Sapphire RX 480 Nitro+ OC 8GB. I know that this sound really weird but this Powercolor card have the same memory chips and voltage controller (http://news.mydrivers.com/1/528/528579_all.htm) of a Sapphire RX 480 Nitro, and it should be more compatible than the Sapphire RX 580 Nitro bios (since it uses a different voltage controller)... right now I'm testing and everything seems ok... I'll keep you updated with more results!
.

Hm, interesting.

Tried this Bios and got a black screen when turning on my pc. Like my monitors won't get detected. Tried every port (DVI and HDMI) but no avail. Had this problem with some of the other bios too. The Asus RoG Strixx 580 Bios works fine ( https://www.techpowerup.com/vgabios/191456/191456 ).

Would of course prefer the Powercolor Bios if the chips and controllers are really the same. Not sure why it doesn't work. Any ideas?
post #2497 of 3303
Quote:
Originally Posted by Echoa View Post

There's no point in doing that, the only major benefit to the 580 bios over a modded 480 bios is the extra memory step. If you have a dud 480 you'll still have a dud 480

Yup, exact reason I've tried the RX580 bios, for a middle step in memory clocks. Went back since started to get memory errors at the same clocks.
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post #2498 of 3303
Quote:
Originally Posted by soxfor View Post

Yup, exact reason I've tried the RX580 bios, for a middle step in memory clocks. Went back since started to get memory errors at the same clocks.

I tried it, I liked it for video but wasn't impressed with the 570 bios on my 470 otherwise. I just modded my 470 for faster memory and 1325mhz core at way lower voltage to get 570 performance with better power draw.

Sure I might gain 1-3fps being able to clock 1400mhz like the 570, but not worth the increase in heat and power imo
Edited by Echoa - 4/23/17 at 1:03pm
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post #2499 of 3303
Quote:
Originally Posted by Sir Lupus View Post

Hm, interesting.

Tried this Bios and got a black screen when turning on my pc. Like my monitors won't get detected. Tried every port (DVI and HDMI) but no avail. Had this problem with some of the other bios too. The Asus RoG Strixx 580 Bios works fine ( https://www.techpowerup.com/vgabios/191456/191456 ).

Would of course prefer the Powercolor Bios if the chips and controllers are really the same. Not sure why it doesn't work. Any ideas?

Did you flash your bios without any application open? Like GPU-Z, Trixx, ...
post #2500 of 3303
Quote:
Originally Posted by Vento041 View Post

Did you flash your bios without any application open? Like GPU-Z, Trixx, ...

I did. Same problem with XFX and MSI Bioses. Just the Asus Strixx one works. Really weird.
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