nix-config/docs/bios.md

BIOS Settings

Manual firmware settings are not managed by Nix. Record values that affect power use, remote wake, and boot behavior here so they survive BIOS updates and hardware swaps. The related Wake-on-LAN workflow and verification commands are in Wake-on-LAN.

Enter firmware setup with Del unless a host section says otherwise.

Last reviewed: 2026-11-02.

12kingdoms mini PCs

Hosts: shoryu (MoreFine S500+), shushou (MinisForum UM560), youko (Beelink GTR5).

Common settings

• Advanced > CPU Configuration > PPC Adjustment (P-State) = PState 2 (full-range adjustment mode).
• Advanced > AMD CBS > FCH Common Options > AC Power Loss Options:
  • AC Power Loss = Always On
  • SATA Controller = Disabled
• Disable unused onboard devices where the firmware exposes them (for example HDD and WLAN options); none are in use on these hosts. youko's two 4TB HDDs are behind a USB JMicron JMS567 enclosure, so disabling the motherboard SATA controller does not affect them.

Wake-on-LAN

The firmware path differs by model:

Host	Model	Setting
shoryu	MoreFine S500+	Advanced > Network Stack = Enabled
shushou	MinisForum UM560	Advanced > Resume on LAN = Enabled
youko	Beelink GTR5	Advanced > Network Stack = Enabled

The firmware side only exposes the wake path. NixOS arming and verification are documented in Wake-on-LAN.

aquamarine

Board: Colorful CVN Z890 ARK FROZEN V20 (BIOS 1013). Settings changed on 2026-11-01.

Page	Setting	Value
Home	Performance mode	Power-saving mode
Home	Cooler	Intel default settings (lowers PL1/PL2 limits)
Home	HD audio	Disabled
Advanced > Power	RGB lighting	Disabled
Advanced > Power	Restore on AC power loss	Power on
OC > Frequency	Intel 200S Boost	Disabled
OC > Frequency	Intel Default Settings	Enabled

Wake-on-LAN is also required for the idle-suspend path:

• Advanced > Power Setting > Wake By Lan = Enabled.
• EUP must not cut standby power to the NIC.
• NixOS arms the RTL8125BG through systemd.network.links; see Wake-on-LAN.