The same apply to NVIDIA and other hardware vendors. AMD provides official API for controlling their hardware. If you have no understanding of basic API backward compatibility concepts and have no any software development experience and big team work experience, no need to comment such things. And yes, it is absolutely up to AMD, NVIDIA or Intel to ensure that they don't break their previously working API. I feel certain they'll either catch up with AMD or fall away." AMD makes the hardware, AMD writes the drivers it is 100% up to the third-parties to make sure that their software works with the latest AMD bios and driver revisions for those products. "Seriously, it's not up to AMD to be sure and support third-party software written to control its hardware. It is up to GPU vendor to think about backward compatibility when making such API changes.Īnd a few notes for those who read misinformative comments (sadly left by our on this issue in other places: So while things implemented for it work it's fine, but if AMD decide to "improve" somthing and traditionally break old, stable and working APIs - nobody will bother to build a rig with such outdated hardware to investigate it. It is a deprecated hardware now, it is not installed in any modern development PCs. And like it or dislike it, but days of focusing development or even performing compatibility testing on Polaris GPUs are in the past. So it can be both pro and con depending on your attitude to zero RPM mode. Curve based fan speed control is decoupled from zero RPM mode, it doesn't disable zero RPM/fan stop automatically like the previous dedicated fixed fan speed control implementation. Do not expect to be able to set fan speed below 25% now on Polaris (or even higher, min limit is defined by your VGA BIOS). Curve based fan control has higher minimum fan speed limit, so you won't be able to set it as low as before with native fixed fan speed control implementaiton. A few notes related to such fixed fan speed control emulation: You can also bypass it via MSI Afterburner config file by setting ODNToOD5FanControlFallback to 0, in this case it will also alter whole curve to emulate fixed fan speed programming instead of using dedicated API for setting fixed fan speed. Fan table/curve based speed contol is the only option left now for such cards with new drivers, fixed fan speed control is gone and can only be emulated by setting "flat" curve. AMD traditionally corrupted (intentionally removed?) fixed fan speed programming API (Overdrive 5 compatible fallback path) for old Overdrive 7 GCN GPUs in 22.5.2. Found old PC with rusty Ellesmere (RX470) GPU in nearby area to peek inside the reasons, that's the only thing I can offer.
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