Overclock.net › Forums › Graphics Cards › AMD/ATI › Polaris Bios Editing ( RX5xx / RX4xx )
New Posts  All Forums:Forum Nav:

Polaris Bios Editing ( RX5xx / RX4xx ) - Page 263

post #2621 of 3472
I have RX-480M8BFA6 and did try several bioses, but none of them were able to boot into working linux install. Any ideas? Do I need to firmwares for rx580? Or kernel with more recent amd fixes?

I am using open source drivers, not the closed ones currently.

Also few of the bioses I tried at w10 seem to work at gpu-z, but trying to play some games hang the gpu...
post #2622 of 3472
Quote:
Originally Posted by generaleramon View Post

I don't know how this bios behave on you specific card. 580s are different from 480s. check you real core voltage when gaming an see if is the same as with the 480 bios. try to overclock ram and core one at time to isolate the problem.

Just for the heads up, tested bios yesterday all day left Heaven on loop 1350/2100 no problems.
+1 rep

Nice for someone who wants to convert 480 8gb reference Samsung chips to 580 set and forget about it. No need to mess around with overclocks ever again XD. Nice perf out of stock.

If you are encountering problems probably it's the mem or the timmings. I suggest try first at stock if your card can handle overclocks on mem.

Do not try to push memory to far after 580 flash as the mem is optimized timmings wise and it will crash more easy.
Edited by zGunBLADEz - 4/26/17 at 3:28am
post #2623 of 3472
Quote:
Originally Posted by Wolfeshaman View Post

might be the stupid question of the day. But what exactly is the benefit of flashing to the 580 bios?

Basically the RX 580's are roughly +10% to +15% faster over a RX480, but using the -EXACT- same hardware the 480's have. We've found out that literally the only difference is a different bios with different settings. So for all the RX 480 owners, they just download a bios, flash it, and get a free upgrade to their existing video cards without having to spend a cent.

The only problem is.. it's not guaranteed to work, or may not work at all.. sometimes doesn't work, one user almost completely bricked their card. So.. Your Milage May Vary.. works for some, not everyone.
Edited by kithylin - 4/26/17 at 4:34am
post #2624 of 3472
Thread Starter 
I am really happy and proud of what we are doing here all together wink.gif
post #2625 of 3472
Hey guys,

so a few days ago I flashed my Strix 480 8GB to 580 Strix. I'm pretty happy about the results so far except I still have the issue that I can't really control the Vcore voltage. It's like it's either locked at 1.15V, 1.8V or 1.2V, no matter what I use. I tried Watttool, Strixx, Afterburner, etc. Anyone else? I don't really know, what the coded voltage in the Polaris Editor means, maybe one should just dial in the Vcore right there?
post #2626 of 3472
Quote:
Originally Posted by kithylin View Post

Basically the GTX 580's are roughly +10% to +15% faster over a GTX 480, but using the -EXACT- same hardware the 480's have. We've found out that literally the only difference is a different bios with different settings. So for all the GTX 480 owners, they just download a bios, flash it, and get a free upgrade to their existing video cards without having to spend a cent.

The only problem is.. it's not guaranteed to work, or may not work at all.. sometimes doesn't work, one user almost completely bricked their card. So.. Your Milage May Vary.. works for some, not everyone.
GTX lol we call it a lapsus in french, that is an AMD thread here.....
post #2627 of 3472
Quote:
Originally Posted by nolive721 View Post

GTX lol we call it a lapsus in french, that is an AMD thread here.....

I made a typo, it happens. I corrected my post.. if you would be so kind to fix yours. It's 6am and I'm tired.
post #2628 of 3472
Quote:
Originally Posted by kithylin View Post

Basically the RX 580's are roughly +10% to +15% faster over a RX480, but using the -EXACT- same hardware the 480's have. We've found out that literally the only difference is a different bios with different settings. So for all the RX 480 owners, they just download a bios, flash it, and get a free upgrade to their existing video cards without having to spend a cent.

The only problem is.. it's not guaranteed to work, or may not work at all.. sometimes doesn't work, one user almost completely bricked their card. So.. Your Milage May Vary.. works for some, not everyone.

There is another truth out there.

With the exact same clock rates for gpu and vram a 480 bios is still faster. Related to ram timings, i assume.

Your gpu will need the same voltage for the same clockrates, the 580 bios can't change that. The stock vcore is up to 1200mV with the 580 bios, the reference 480 bios delivers 1150mV, the custom 480's usually 1175mV.

And the powerlimit is mostly a little higher on the 580's, but again, no need for the 580 bios there. plenty of alternatives.

So, the ONLY benefit from the 580 bios is the new powerplay thing, less power draw in some scenarios, that's it. And u have to clock your vram higher, for the same performance.
post #2629 of 3472
Quote:
Originally Posted by kithylin View Post

I made a typo, it happens. I corrected my post.. if you would be so kind to fix yours. It's 6am and I'm tired.
its 930PM here, I had a long day managing an office and family commitment so I am not going to cry about you being tired and making typos, I am yet to see where I have made any by the way

anyway back to topic, I have compared both BIOS relative performances on my 480 Red devil as I did with my extreme OC settings but this time with moderate OC and undervolting the card. power draw becomes comparable but although I reduced memory clocks from my extreme OC 2250Mhz to now 2000Mhz, I still see hundreds of memory errors with the 580 BIOS and none with the 480
post #2630 of 3472
I try to raise tdc and tdp with polaris bios editor on my sapphire nitro rx 480 8 gb,but after the flash,all 3d game have a lower fps and all is slower...if i try to change dpm state voltage,gpuz don't report change on Vddc,anyone have my same experience?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Polaris Bios Editing ( RX5xx / RX4xx )