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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 271

post #2701 of 3466
Quote:
Originally Posted by Flickspeed View Post

We currently need more info on flashing the other way around.

Need confirmation a 580 can be flashed to 480?

Need that to avoid certain problems with new driver and to have ability to use older drivers meant for the 400 series cards.
post #2702 of 3466
Quote:
Originally Posted by Flickspeed View Post

We currently need more info on flashing the other way around.

Need confirmation a 580 can be flashed to 480?

Need that to avoid certain problems with new driver and to have ability to use older drivers meant for the 400 series cards.

Just went ahead and tested it. My RX 580 Nitro+ Limited Edition successfully flashed to an RX480 Nitro+. I'll have to reinstall windows to see if it makes the drivers compatible.
post #2703 of 3466
i wonder how well it clocks under the 480 bios compared to the 580
post #2704 of 3466
Initial tests under Ubuntu show it performs exactly the same as the RX580 BIOS, given that TDP, TDC, Power Limit, memory straps, and clocks are brought in from the RX580 version
post #2705 of 3466
Quote:
Originally Posted by afaque View Post

so i have booted up my pc and now i cant seem to get any display from my gpu. frown.gif MY gpu is bricked

I just thought I would take this moment to mention.. flashing the bios of your card is extremely risky. There's always that chance that you could brick the card or the new bios could make it do something it wasn't designed for and fry the chips on it.. anything can happen. Everyone should know this if you go about flashing your cards. Also if you some how brick your card to the point where you can't even flash your factory bios back to it.. then you should know most manufacturers won't honor an RMA if you send it back with a bad-flashed custom bios and they find out that's what you did. May and probably will void warranties.

Bottom line is: Flash at your own risk. If you break, then it it's your own problem.

And that aside, even if you do have problems, you should already be prepared with either onboard iGPU or spare video card / spare computer to be able to boot with the card in a secondary slot so you can recover from bad flashes. If you don't know how to do this or don't have the setup to recover it.. probably would be a Very-Bad-Idea to go about flashing bios's on your only video card in your only computer.

However all of that disclaimer aside.. most folks here usually help ya try to recover it.. usually.. I still have an older AMD 6000 card in the other room I bricked it with a bad bios flash and it's gone forever and I can't re-flash it in any computer.
post #2706 of 3466
Quote:
Originally Posted by Apneal View Post

Just went ahead and tested it. My RX 580 Nitro+ Limited Edition successfully flashed to an RX480 Nitro+. I'll have to reinstall windows to see if it makes the drivers compatible.

Very nice to hear,

Don't have to reinstall windows biggrin.gif Just run the setup of the old driver, choose clean uninstall.. Then run the old driver setup again after reboot.
post #2707 of 3466
Quote:
Originally Posted by Flickspeed View Post

Very nice to hear,

Don't have to reinstall windows biggrin.gif Just run the setup of the old driver, choose clean uninstall.. Then run the old driver setup again after reboot.

I mean I've been running Ubuntu to get around the driver issue
post #2708 of 3466
my red dragon rx480 4gb had the bios switch removed. can still see the outlines and circuitry still in place. i wonder why they'd do this.
someone removed the heatsink to expose the memory chips. all 8gb of samsung memory is on the pcb, but they burned the circuits leading to half of them or something... >: (

would love to be able to flash the full 8gb bios and make use of everything that's on the pcb. but no bios switch is too risky and "sludged" memory modules.. ugh why would they do thissss
"we're going to make something kewl, and waste the money on putting the full feature set in place, then put the work into gimping the product until any chance of unlocking results in a product that's FUBAR" mad.gif

am i allowed to link this?
https://www.reddit.com/r/Amd/comments/5z24c4/powercolor_rx_480_red_dragon_4gb8gb_uses_same_pcb/
Edited by ocyt - 4/28/17 at 4:26pm
post #2709 of 3466
Found a small stutter which was visible during vsync inside the reshade.me statistics graph, a big spike every second or so. I was going crazy, because microstutter annoys me in racing games and vsync is always nicer for fullscreen windowed.

After flashing 480 back, same thing happened. I guess the new driver changed something but I figured out a fix after seeing how closing hwinfo64 stopped it!

Right click hwinfo, choose settings and go to this tab and try this:
If it doesnt fix it, try checking more of them, but keep 0 unchecked because that was the one that would stop my rx480 reporting on hwinfi:



Alternately you can just keep i2c via ADL unchecked, but for my card I lose temperature/power and a few other readings.
Edited by robnitro - 4/28/17 at 10:16pm
post #2710 of 3466
I've been working on flashing RX 480 drivers onto the RX 580 in order to use older drivers.

I've found that the RX 580 is more than happy to accept RX 480 BIOS. However, AMD still detects the card as an RX 580, in fact the pre-580 drivers do not see the card at all. Further, you can not force RX 480 drivers onto a 580 card which has 480 BIOS. This seems like a dead end.
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