Fix - Sleep/Wake on BIOS F22
Although sleep/wake worked after reverting back to BIOS F8, version F22 seems to support my RAM better (4x8GB Patriot Viper Steel DDR4 4400); especially when overclocking.
I decided to try jumping back to BIOS F22 and see if it would fail again after setting all the BIOS options in order to boot; and it did. Before doing so, I thought I had enabled
Re-size BAR support since I'm running a 6900 XT and my config is set for Re-size BAR support, but I was not able to boot. That is because I forgot that in version F8,
Re-size BAR Support is visible but hidden in F22 until you set
Above 4GB MMIO BIOS assignment. After testing sleep/wake and it failing once again after jumping to F22, i went back into BIOS and looked at the description text when selecting
Above 4GB MMIO BIOS assignment. That setting seems to have a dependency on
Aperture Size in that according to the description it is enabled automatically when
Aperture Size is set to 2048MB. I decided to check what my max value is for
Aperture Size and saw that the default value was 256MB. I bumped it up to the max value to 1024MB, saved the changes and booted up.
Increasing
Aperture Size from the default of 256MB seems to have done the trick and I'm no longer experience the sleep/wake issue that I was having earlier on BIOS F22 and that made a difference.
I've attached some screenshots of the BIOS settings for reference.