Amit_ Posted July 21, 2024 Share Posted July 21, 2024 (edited) I just did a Ventura build with a i7-13700kf and a Radeon RX 6800. I am having an issue where my Memory clock is always maxed at 1988 MHz. This is causing high idle temps and lots of coil whine on my GPU. Zero-RPM is enabled on both Mac and Windows. I am getting around 30-35W of power consumption and 55-65C idle temps on MacOS, but on Windows I am getting 35-40C idle temps and 5-10W power consumption. I attached images of MacOS and Windows GPU info. Is there any way I can fix this? Edited July 31, 2024 by Amit_ Link to comment https://www.insanelymac.com/forum/topic/359712-rx6800-vram-clock-speed-is-always-maxed/ Share on other sites More sharing options...
Amit_ Posted July 31, 2024 Author Share Posted July 31, 2024 bump Link to comment https://www.insanelymac.com/forum/topic/359712-rx6800-vram-clock-speed-is-always-maxed/#findComment-2823569 Share on other sites More sharing options...
Amit_ Posted August 14, 2024 Author Share Posted August 14, 2024 bump Link to comment https://www.insanelymac.com/forum/topic/359712-rx6800-vram-clock-speed-is-always-maxed/#findComment-2824070 Share on other sites More sharing options...
Slice Posted August 23, 2024 Share Posted August 23, 2024 Read rules Link to comment https://www.insanelymac.com/forum/topic/359712-rx6800-vram-clock-speed-is-always-maxed/#findComment-2824378 Share on other sites More sharing options...
miliuco Posted August 23, 2024 Share Posted August 23, 2024 (edited) @Amit_ Not sure why this is happening (memory always at top). I have RX 6600 XT and Memory clock moves between minimum and maximum values when not under heavy load. See pics. Only settings are Whatevergreen + agdpmod=pikera in boot args. But iMacPro1,1 and MacPro7,1 SMBIOS can also work without WhateverGreen (without agdpmod=pikera). A temperature difference between Windows and macOS is normal, always 5-10º cooler on Windows, but not as big as yours. Spoiler Edited August 23, 2024 by miliuco Fix typo Link to comment https://www.insanelymac.com/forum/topic/359712-rx6800-vram-clock-speed-is-always-maxed/#findComment-2824379 Share on other sites More sharing options...
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