It doesnt matter about the RMA, out of warranty means you pay for the RMA
I never knew that was an option. if they reject RMA, that means they won't fix it at all. RMA where I live is quite more different as in US. It's very conservative. Basically any OEM would suspect consumer being idiot first, if not, then blame consumer for not necessarily consumer made damage (if it's questionable type of damage, then consumer is wrong), certain hardware problems are ignored, even if they do cause issues in long term, but if they don't deviate from initial model of your hardware specs. I have heard that some people contact authorities and they often defend consumer a lot more than OEM, but it takes a long time (months) and pretty much has no lasting effect on OEM. OEM can still screw people up and system here is that you contact authorities, they sort it out and OEM doesn't get punished, apart from doing actual RMA (if they can) and maybe some small fine.
Or maybe I just have a rotten luck with RMA myself, but that still doesn't change the fact that many OEMs attempt to not honour warranty and likely get away wit hit. If I buy computer hardware, I basically treat it as if it never had warranty.
And PowerColor doesn't have any forum, only very ancient and inefficient looking inquiry form and some infantile sounding Devil Club. I somehow think, that Red Dragon, doesn't belong in Devil club.
Edit:
Tried to sign up into Devil club, but it requires some invitation, that I obviously don't have. I guess, I don't care about it then.
Outrageous fan noise seems to be a common complaint with this specific card.
PowerColor Red Dragon RX 580 fans have the highest amperage requirement I've seen on a gpu at 12v .55A.
You could try PolarisBiosEditor to permanently change your fan curve.
https://github.com/caa82437/PolarisBiosEditor
I guess, that heatsink is just too poor for this card. It's basically exactly the same heatsink that they used for RX 480, but then fans topped out at 2800 rpm. That's still garbage, because reference RX 480 topped out at just 2200 rpm. And reference cards are known to be one of the worst, particularly blowers.
Kudos to PowerColor for making custom cooler worse than reference cooler. /s
I have tried messing with PWM values in SRB Polaris and PBE, that functionality isn't really functional. You can't even lock maximum rpms. If you flash different value (let's say 2500 rpm), ten after boot up card itself may or may not reach that value, but you can still set fans to 100% in Afterburner and that still means that they will reach stock 3500 rpm. So I dunno, that seems broken to me. PWM percentage tweaking seemingly has some effect, but it's still disconnected from actual temperature of card and card violates preset curve. I also have no idea what card is supposed to do if it reaches medium temperature point or high temperature point. I only know that if it reaches max temperature point, then it will keep fans at max until it cools down, but that's useless knowledge as card never reaches temperatures that high. Temperature target modifications, seem to have the most effect, but card still only partially respects set value. It still often spins fans too high and keep GPU at lower temperature than is defined in target. Or if target is low (like stock 70C), then fans don't spin as fast they have to to keep temperature at target.
And speaking of unclear settings, I still have zero idea of what power limits do. I figured out that changing TDP, only changes displayed wattage in GPU-Z, but has no effect on actual card wattage. Small power limit seemingly does nothing. Maximum power limit seemingly is the actual power limit. Most OEMs set small and max power limit to same values, so that's good, but some actually set them at different values. That makes me a bit concerned about them. Maybe one is for core only and other for whole card. Maybe one is short term power limit and other is long term power limit (like Intel's PL1 and PL2). All I know, that I don't know everything and there's no way to find that out. I asked about this on several forum and got no replies. Neither SRB Polaris, neither PBE website explains what they actually do. AMD doesn't publicly offer whitepapers about that, but I can find some old Radeon HD 7000 series PowerTune files that mention a little bit that they exist. It's a shame, that there isn't much information.