BIOS Configuration Reference
This is the complete configuration published on the BIOS Configuration page, reorganized without silently converting it into a universal recommendation.
Compatibility boundary
The menu vocabulary indicates an ASUS ROG Intel platform. Exact names, available values, defaults, and effects vary by motherboard model and BIOS version. Capture current settings or save a BIOS profile before changing anything. Change one category at a time and confirm boot, temperatures, storage, networking, USB, audio, BitLocker, virtualization, and sleep behavior.
The source contains apparent typographical errors: "Speed Shit" is interpreted as Intel Speed Shift, "Bandwith" as Bandwidth, "Tcc Offset Time Windows" may be a board-specific TCC time-window label, "AVX ICRN Offset" may refer to an AVX instruction-core-ratio negative offset, and the VT-d value lacks a closing quotation mark. The original wording is noted where interpretation is uncertain.
Advanced > APM Configuration
| Setting |
Source value |
Effect and caution |
| ErP Ready |
Disabled |
Allows standby power features that ErP mode may restrict. Higher off-state power consumption is possible. |
| Restore AC Power Loss |
Power Off |
The machine remains off after utility power returns. |
| Power On By PCI-E/PCI |
Disabled |
Disables wake/power-on from supported PCIe devices, including Wake-on-LAN paths on some boards. |
| Power On By RTC |
Disabled |
Disables scheduled firmware power-on by real-time clock. |
Advanced > CPU Configuration
| Setting |
Source value |
Effect and caution |
| Active Processor Cores |
All |
Exposes all enabled physical cores. |
| Intel Virtualization Technology |
Disabled |
Disables VT-x. Hyper-V, WSL 2, Windows Sandbox, many virtual machines, and virtualization-based security may not work. |
| Hardware Prefetcher |
Enabled |
Allows the CPU to prefetch predicted memory data. Normally appropriate. |
| Adjacent Cache Line Prefetch |
Enabled |
Allows adjacent-line prefetching. Workload-dependent but normally left at default. |
| Boot Performance |
Max Non-Turbo Performance |
Requests the highest non-turbo performance state during boot. Firmware-specific. |
| SW Guard Extensions (SGX) |
Disabled |
Disables Intel SGX. SGX is unavailable or deprecated on many newer client platforms. |
| Tcc Offset Time Windows |
Auto |
Preserves automatic firmware handling of this board-specific thermal-control value. |
| Execute Disable Bit |
Disabled |
Disables CPU NX/XD support required for hardware-enforced DEP. Security regression. Recommended repository baseline: Enabled. |
Advanced > CPU Configuration > CPU Power Management Control
| Setting |
Source value |
Effect and caution |
| Intel SpeedStep |
Disabled |
Prevents traditional OS-controlled performance-state scaling. Can increase idle power/heat or alter boost behavior. |
| Turbo Mode |
Enabled |
Allows operation above base frequency within firmware power, current, and thermal limits. |
| CPU C-states |
Disabled |
Prevents deep idle states. May reduce some wake latency but increases idle power and temperature. Benefit must be measured. |
| CFG Lock |
Disabled |
Leaves the relevant model-specific register writable. Needed by some low-level configurations, but not a general performance setting. |
| Intel Speed Shift Technology |
Disabled |
Source says "Speed Shit." Disabling Speed Shift prevents hardware-directed performance-state selection and may worsen responsiveness or efficiency on supported CPUs. |
Advanced > Onboard Devices Configuration
| Setting |
Source value |
Effect and caution |
| HD Audio Controller |
Enabled |
Enables onboard audio. |
| PCIEX4_3 |
X4 Mode |
Allocates four lanes to the named slot; may share or disable other ports depending on the board. |
| M.2_1 Configuration |
Auto |
Lets firmware select the mode for the first M.2 slot. |
| M.2_2 PCIe Bandwidth Configuration |
X4 |
Allocates four PCIe lanes to the second M.2 slot; board-specific lane sharing applies. |
| ASMedia Back USB 3.1 Controller |
Disabled |
Disables rear ports attached to that controller. |
| ASMedia Front USB 3.1 Controller |
Disabled |
Disables front-panel ports attached to that controller. |
| RGB when working |
Off |
Turns board lighting off while running. |
| RGB during sleep, hibernate, or soft off |
Off |
Turns board lighting off in low-power/off states. |
| Intel LAN Controller |
Enabled |
Enables onboard Intel Ethernet. |
| Intel LAN PXE Option ROM |
Disabled |
Disables network boot ROM. Normal local networking remains available. |
Advanced > PCH Configuration
| Setting |
Source value |
Effect and caution |
| IOAPIC 24-119 Entries |
Disabled |
Restricts extended I/O APIC entries. This can impair modern PCIe device interrupt routing or compatibility. Leave at firmware default unless a specific legacy requirement exists. |
Advanced > PCH Configuration > PCI Express Configuration
| Setting |
Source value |
Effect and caution |
| PCIe Speed |
Gen3 |
Forces Gen3 instead of automatic or newer generations. May improve stability on an older platform but caps capable devices. |
Advanced > Platform Misc Configuration
| Setting |
Source value |
Effect and caution |
| PCI Express Native Power Management |
Disabled |
Disables OS-native PCIe power management. |
| PCH DMI ASPM |
Disabled |
Disables Active State Power Management on the chipset link. |
| ASPM |
Disabled |
Disables PCIe link power-saving states globally or for the selected scope. |
| DMI Link ASPM Control |
Disabled |
Disables DMI link power saving. |
| PEG ASPM |
Disabled |
Disables ASPM for PCIe graphics. These settings increase idle power and can increase temperature. |
Advanced > ROG Effects
| Setting |
Source value |
Effect and caution |
| Onboard LED |
Enabled |
Enables board status lighting. |
| Q-Code LED Function |
POST Code Only |
Displays diagnostic POST codes during startup rather than another runtime value. |
Advanced > System Agent Configuration
| Setting |
Source value |
Effect and caution |
| VT-d |
Disabled |
Disables I/O virtualization and DMA remapping. Device passthrough and some Windows hardware-security protections may not work. |
Graphics Configuration
| Setting |
Source value |
Effect and caution |
| Primary Display |
Auto |
Lets firmware select the initial graphics device. |
| iGPU Multi-Monitor |
Disabled |
Disables keeping the integrated GPU active alongside a discrete GPU for additional displays/features. |
DMI/OPI Configuration
| Setting |
Source value |
Effect and caution |
| DMI Max Link Speed |
Gen3 |
Forces or caps the CPU-chipset link at Gen3 on the source platform. |
PEG Port Configuration
| Setting |
Source value |
Effect and caution |
| PCIEX16/X8_1 Link Speed |
Gen3 |
Forces the first graphics slot link to Gen3. |
| PCIEX8_2 Link Speed |
Gen3 |
Forces the second graphics slot link to Gen3. |
| PCIe Spread Spectrum Clocking |
Disabled |
Disables small clock modulation used to reduce electromagnetic interference. Can increase EMI. |
Boot
| Setting |
Source value |
Effect and caution |
| Fast Boot |
Disabled |
Performs a more complete boot initialization. Firmware boot may take longer. |
| Above 4G Decoding |
Disabled |
Disables allocation of PCIe MMIO above 4 GiB. This can prevent Resizable BAR, large multi-device configurations, and some modern GPU/device layouts. |
| CSM |
Disabled |
Uses UEFI-only boot. Appropriate for modern Windows when the OS disk uses GPT and devices have UEFI support. Verify before changing on an existing installation. |
Boot > Boot Configuration
| Setting |
Source value |
Effect and caution |
| Boot Logo Display |
Disabled |
Hides the vendor logo. |
| POST Report |
5 seconds |
Displays POST information for five seconds. |
| Boot Up NumLock State |
Disabled |
Starts with Num Lock off. |
| Wait for F1 If Error |
Enabled |
Stops for acknowledgement when firmware reports an error. |
| Option ROM Messages |
Enabled |
Shows expansion-device firmware messages. |
| Interrupt 19 Capture |
Disabled |
Prevents add-in option ROMs from capturing the legacy boot interrupt. |
| Setup Mode |
EZ Mode |
Personal interface preference; no runtime performance effect. |
Extreme Tweaker
| Setting |
Source value |
Effect and caution |
| XMP profile |
Set your profile |
Applies memory vendor timings/voltage beyond base JEDEC settings. This is overclocking and requires stability testing. |
| MultiCore Enhancement |
Auto |
Lets ASUS firmware decide whether to apply vendor multi-core turbo behavior. Exact limits depend on BIOS and CPU generation. |
| SVID Behavior |
Best-Case Scenario |
Uses an optimistic voltage/current behavior preset. Can reduce requested voltage but may cause instability on a CPU that needs more voltage. |
| AVX ICRN Offset |
Auto |
Source spelling retained; likely an AVX ratio-offset control. Automatic firmware behavior. |
| CPU Core Ratio |
Auto |
Leaves CPU ratios under automatic firmware control. |
| DRAM Odd Ratio Mode |
Enabled |
Allows odd memory ratio steps where supported. |
| Xtreme Tweaking |
Disabled |
Disables ASUS's specialized benchmark-oriented mode. |
| TPU |
Keep Current Settings |
Does not apply a new TPU automatic tuning profile. |
| CPU SVID Support |
Auto |
Leaves CPU voltage-identification signaling under firmware control. |
Tools
| Setting |
Source value |
Effect and caution |
| Setup Animator |
Disabled |
Disables BIOS interface animations. |
| Armoury Crate |
Disabled |
Prevents firmware-assisted Armoury Crate installation/integration where supported. |
Recommended security corrections
For a current Windows 11 baseline, keep Execute Disable Bit enabled. Enable Intel Virtualization Technology and VT-d when using Hyper-V, WSL 2, Windows Sandbox, virtualization-based security, Memory Integrity, Credential Guard, device passthrough, or DMA remapping. Treat C-state, ASPM, SpeedStep, Speed Shift, Gen3 forcing, IOAPIC, and Above 4G settings as machine-specific experiments rather than latency axioms.
The source page displays a content update date of 4 September 2026 and the donation addresses reproduced in the repository README.