Ryzen 5900X BIOS settings

• Overview
  • Tuned for xmrig
  • The default BIOS settings loaded
• System info
• Reverting BIOS settings to defaults
  • Section: Tweaker
    • Subsection: Tweaker -> Advanced CPU settings
    • Subsection: Tweaker -> Advanced memory settings
    • Subsection: Tweaker -> Advanced memory settings -> Memory sub timings
    • Subsection: Tweaker -> Advanced memory settings -> SPD
    • Subsection: Tweaker -> CPU/VRM settings
  • Section: Settings
    • Subsection: Settings -> Platform power
    • Subsection: Settings -> IO Ports
    • Subsection: Settings -> IO Ports -> USB
    • Subsection: Settings -> IO Ports -> NVMe
    • Subsection: Settings -> IO Ports -> SATA
    • Subsection: Settings -> IO Ports -> Network stack
    • Subsection: Settings -> Misc
    • Subsection: Settings -> AMD CBS
    • Subsection: Settings -> AMD Overclocking
    • Subsection: Settings -> PC Health
    • Subsection: Settings -> Smart fan
  • Section: System info
    • Subsection: System info -> Q-flash
  • Section: Boot
• Trying out "Eco mode"
• Enable "AC BACK"

Overview

Documenting BIOS settings I had made to get the most performance out of xmrig on the Ryzen 5900X before restoring defaults and applying something more energy efficient.

Tuned for xmrig

The energy consumption with these settings is quite high:

The default BIOS settings loaded

Uses a lot less energy. After setting the CPU frequency governor to powersave with

$ cpupower frequency-set -g powersave

Uses approx

System info

Reverting BIOS settings to defaults

The "Save and exit" section can export the complete settings (in some binary format), so the settings are saved as ~/.local/share/private/Ryzen_5900X/asus-b550-xmrig.bin.

Its not easy to tell in the BIOS itself weather something is on its default value or not, but the manual includes the default value of (most) settings.

Not all settings are included here, but I've tried to keep it as complete as possible.

Section: Tweaker

Subsection: Tweaker -> Advanced CPU settings

Subsection: Tweaker -> Advanced memory settings

This subsection only contains other subsections

Subsection: Tweaker -> Advanced memory settings -> Memory sub timings

Everything in this section is set to Auto (the default)

Subsection: Tweaker -> Advanced memory settings -> SPD

Everything in this section has their default value or no value.

Subsection: Tweaker -> CPU/VRM settings

Everything in this section is set to Auto (the default)

Section: Settings

Subsection: Settings -> Platform power

Everything in this section is set to Auto (the default).

Subsection: Settings -> IO Ports

Not relevant

Subsection: Settings -> IO Ports -> USB

Not relevant

Subsection: Settings -> IO Ports -> NVMe

Not relevant

Subsection: Settings -> IO Ports -> SATA

Not relevant

Subsection: Settings -> IO Ports -> Network stack

Not relevant. Everything in this section has the default values

NOTE: PXE boot is enabled here

Subsection: Settings -> Misc

Not relevant. Everything in this section has the default values

Subsection: Settings -> AMD CBS

Not relevant. Everything in this section has the default values

Subsection: Settings -> AMD Overclocking

Not relevant. Everything in this section has the default values as far as i can tell.

Too many subsections to screenshot

Subsection: Settings -> PC Health

Not relevant, there are no settings here

Subsection: Settings -> Smart fan

Not relevant, there are no settings here

Section: System info

Not relevant, there are no settings here

Subsection: System info -> Q-flash

Not relevant, there are no settings here

NOTE: BIOS version information is here

Section: Boot

Not relevant

Trying out "Eco mode"

According to someone on reddit, these are the default values for 5900X:

And someone else on reddit says its the same default values as 5800X, and that ECO mode on that one sets these value to one of

Where to find the settings in the bios: https://www.pcworld.com/article/1352253/how-to-enable-eco-mode-with-ryzen-7000.html

Enable "AC BACK"

This setting controls what happens the motherboard/PSU get AC power.

Changed it to Always on. That means if the computer gets AC power, it powers itself on. Good for remotely turning it on.

And Wake-on-LAN has also been enabled.