The MSI Afterburner fan controls function properly, but overclocking is not possible.
The MSI Afterburner fan controls function properly, but overclocking is not possible.
I've installed 4.4.2 and configured my fan controls for my R9 290 GPU. My mining rig now has six GPUs running smoothly on Windows 10 Pro. I attempted to raise the core clock from the default 974 to 1125, which worked well in Linux Ubuntu. After applying the change, the slider reads 1125 but the display still fluctuates between 930-970. In Ubuntu, adjusting it to 1125 improved mining performance, raising hashrate from 25Mh/s to 30Mh/s and allowing temperature control via fan settings. Using MSI Afterburner with core clock set to 1125 didn't change the hashrate. I've tried gradual adjustments without success. It seems unlikely a power supply issue is the cause. Each GPU is connected to its own PSU (three PSUs total), drawing only about 615W, which provides ample room for safe overclocking. Any suggestions? Also, I haven't enabled AMDGPU Pro, so there shouldn't be a conflict.
Just to clarify, I've been able to achieve a stable performance of 30Mh/s per GPU after overclocking.
I first needed to use the provided tool: https://support.amd.com/en-us/kb-article...ility.aspx.
This removed all traces of my AMD Adrenaline drivers, and after rebooting, I installed Crimson 15.12. A second reboot allowed me to successfully overclock with MSI Afterburner.
I had previously tried 16x, 17x, and 18x drivers without success—appears my R9 290 cards only support the 15.12 driver.
I would say the problem lies with the operating system. Specifically, with Linux GPUs (if driver support is available) they perform better than on Windows. Therefore, you might not achieve the same overclocking in Windows as you did on Linux. In Windows using Afterburner, the main reason for OC failure is instability at those settings. Here’s my recommendation:
1. Increase the power and/or temperature limits in Afturburner if possible.
2. Reduce the OC until it becomes stable.
Following these steps should likely resolve the issue. I have two 480s GPUs on one of my PCs, and I only manage around 25MHz OC in Windows. It’s possible that Windows simply can’t maintain the same level of OC. Hope this helps, even slightly.
It seems like the problem lies with the operating system itself. If the Linux GPU receives driver support, performance improves compared to Windows. In Windows, OC may not stick due to instability at certain settings. Here’s what I recommend: increase the power and/or temperature limits in Afterburner if possible, then lower the OC until it becomes stable. From my experience, raising the power limit brought the core clock from 974 to 1000 and kept it steady. The 1050 and 1100 readings fluctuated, suggesting an OS issue that would be resolved in Linux. Moving back to Linux might be the best solution.
Just to clarify, I've been able to achieve a stable performance of 30Mh/s per GPU after overclocking.
I first needed to use the provided tool: https://support.amd.com/en-us/kb-article...ility.aspx.
This removed all traces of my AMD Adrenaline drivers, and after rebooting, I installed Crimson 15.12. A second reboot allowed me to successfully overclock with MSI Afterburner.
I had previously tried 16x, 17x, and 18x drivers without success—appears my R9 290 cards only support the 15.12 driver.