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How to increase max memory speed in CoreCTRL (self.linux)

submitted 1 year ago by Ljubi to c/[email protected]

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Hey, my max memory speed is only 1075mhz. I know that that my gpu the 6800xt can be tuned to a higher speed. Because i used Amd adrenalin on windows in the past. How can I increase my max memory mhz? I use fedora as my os.

And about the voltage in CoreCTRL its differently displayed. How big does the -number need to be to get to 1060mv?

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[–] [email protected] 3 points 1 year ago (1 children)

I overclocked my RX580 recently. Here is how to do it in CoreCTRL.

https://gitlab.com/corectrl/corectrl/-/wikis/Setup

Currently, to have full control of your AMD GPU while using the amdgpu driver, you need to append the boot parameter amdgpu.ppfeaturemask=0xffffffff to your bootloader configuration and reboot. NOTE: The following instructions are for guidance only. Check your distribution documentation on how to add boot parameters.

GRUB bootloader Edit the file /etc/default/grub as root and append amdgpu.ppfeaturemask=0xffffffff to GRUB_CMDLINE_LINUX_DEFAULT:

GRUB_CMDLINE_LINUX_DEFAULT="... amdgpu.ppfeaturemask=0xffffffff"

NOTE: In the above example, ... represent other existing parameters. Do not add ... to your GRUB_CMDLINE_LINUX_DEFAULT. You should only add amdgpu.ppfeaturemask=0xffffffff. Then regenerate the bootloader configuration file with the command:

sudo grub-mkconfig -o /boot/grub/grub.cfg

Reboot your system. You should have more controls when you select Advanced as Performance mode where you can tweak the mhz and voltage easily.

[–] Ljubi 2 points 1 year ago (2 children)

I did this and i can tweak the voltage and stuff. Just max memory is wrong. On amd adrenalin i was running vram 2124mhz and here only 1075mhz. And how does the voltage work in CoreCTRL i only know how to do it in amd app in mv but i dont know what -30 is.

[–] [email protected] 2 points 1 year ago

In CoreCTRL, you tweak the voltage for each state. -30 in your case would reduce the voltage by 30 mv in every state which is not ideal. Just deduct 30 mv in each state in CoreCTRL.

[–] [email protected] 1 points 1 year ago

For the 6000 series amd gpus corectrl can only offset the voltage and not control each voltage step like adrenalin can. The -30 would probably be a 30mV reduction to the gpu voltage, but it should tell you exactly what you're doing.