Intel® NUC BIOS Settings Glossary Intel® NUC BIOS Settings Glossary The BIOS Setup program can be used to view and change the BIOS settings for the computer. BIOS Setup is accessed by pressing F2 after the Power-On Self-Test (POST) memory test begins and before the operating system boot begins. The presence of menus and BIOS settings are dependent on your Intel NUC model, hardware components installed, and the BIOS version.
Intel® NUC BIOS Settings Glossary BACK 0–9 BIOS Setting 1-Core Turbo Ratio Appears on BIOS Screen… Performance Options Numeric Description / Purpose Maximum processor multiplier used by Intel Turbo Boost Technology when 1 core is active. 2-Core Turbo Ratio Performance Numeric Maximum processor multiplier used by Intel Turbo Boost Technology when 2 cores are active. +3.3V Cooling Displays the voltage of the power supply +3.3V rail. +3.
Intel® NUC BIOS Settings Glossary BACK Blacklisted Signature Database (dbx) Boot Information only Displays Installed or Not Installed based on the presence of the UEFI dbx variable.
Intel® NUC BIOS Settings Glossary BACK Chassis Information Home Information only Displays SMBIOS information for: • Manufacturer • Version • Serial Number • Asset Tag • SKU Number Chipset SATA Chipset SATA Mode Devices Devices Checkbox • IDE • AHCI Enables or disables the internal SATA controller. IDE: Compatibility mode disables AHCI support. AHCI: Supports advanced SATA features such as Native Command Queuing.
Intel® NUC BIOS Settings Glossary BACK D BIOS Setting Damping Appears on BIOS Screen… Cooling Options • High • Normal • Low Description / Purpose Helps to reduce oscillation in fan speed response. Higher settings will produce fewer changes, but could slow temperature response. Dec-WRD Performance Checkbox When this bit is set, there is one cycle decrement of WR command to data delay, without affecting tCWL for other purposes. Deep S4/S5 Power Checkbox Enable or disable deep S4/S5.
Intel® NUC BIOS Settings Glossary BACK E BIOS Setting EDID Data Source Appears on BIOS Screen… Devices Options • Flat Panel Display • Custom Payload • Pre-Defined Description / Purpose Flat panel display parameters will be read from the selected source. eDP Data Rate Devices • 1.62 Gbps • 2.70 Gbps Sets the data rate for the Embedded DisplayPort (eDP)link. This will be used if the sink indicates that no aux handshake is required during link training.
Intel® NUC BIOS Settings Glossary BACK Fan Control Mode Cooling • Fixed • Custom • Cool • Balanced • Quiet Fixed: the System Fan Speed will be fixed. Custom: Allows you to manually set temperature and duty cycle options. Cool: Preloads specific settings for cool operation. Balanced: Preloads specific settings to blend cool and quiet operation. Quiet: Preloads specific settings for quiet operation.
Intel® NUC BIOS Settings Glossary Graphics Voltage Mode BACK • Offset Only • Interpolated + Offset • Static + Offset Performance Offset Only: hides Voltage Target question, sets Voltage Target Mode (Bit 20) to 0 (Adaptive), sets Voltage Target (Bits 19:8) to 0 Interpolated + Offset: displays Voltage Target question, sets Voltage Target Mode (Bit 20) to 0 (Adaptive) Static + Offset: displays Voltage Target question, sets Voltage Target Mode (Bit 20) to 1 (Static) Graphics Voltage Offset (V) Performanc
Intel® NUC BIOS Settings Glossary BACK I BIOS Setting IGD Current Limit (Amps) Appears on BIOS Screen… Performance Options Numeric Description / Purpose Integrated Graphics Dynamic Frequency will be controlled based on this current limit. IGD Flat Panel Devices • Disable • LVDS • eDP Disable: disables Video BIOS LVDS and eDP output. The BIOS will use “IGD Primary Video Port” for multi-monitor support configuration.
Intel® NUC BIOS Settings Glossary Intel® Dynamic Power Technology Power BACK • Energy Efficient Performance • Off • Custom Configures processor power management features.
Intel® NUC BIOS Settings Glossary Intel® Virtualization Technology BACK Security Checkbox Enables or disables Virtualization Technology. Takes affect only after power cycling. For more information refer to http://www.intel.com/technology/virtualization/index.htm Intel® Visual Boot Manager Boot Checkbox Enables or disables the Intel Visual Boot Manager, a feature that provides a visual interface for selection of operating system boot and installation.
Intel® NUC BIOS Settings Glossary Link Speed BACK • AutoNeg • 10 Mbps Half • 10 Mbps Full • 100 Mbps Half • 100 Mbps Full Devices Changes the link speed and duplex for the LAN port. M BIOS Setting M.2 SATA Appears on BIOS Screen… Devices Options Information only Description / Purpose Displays the information of the device connected to the M.2 slot. M.2-PCIe Slot Devices Information only Displays the information of the device connected to the M.2 slot. M.
Intel® NUC BIOS Settings Glossary BACK Minimum Temperature (°C) Cooling Information only Fan speed increases if the processor temperature exceeds this value. The value is calculated by Tcontrol minus a fixed value. Motherboard Ambient Cooling Information only Displays the current system ambient temperature. mSATA Port Devices Information only Displays the device identification string, capacity in gigabytes, and negotiated speed (1.5 Gb/s, 3.0 Gb/s, or 6.
Intel® NUC BIOS Settings Glossary BACK P BIOS Setting Package Power Limit 1 (Sustained) Appears on BIOS Screen… Power Options Numeric range 0 - 30 Description / Purpose Intel Turbo Boost Technology will control processor power usage to the Sustained Mode Power Limit over a moving average time window. Package Power Limit 2 (Burst Mode) Power Numeric range 0 - 30 Intel Turbo Boost Technology will use this power limit for a very short duration. After that, the Sustained Mode Power Limit will be used.
Intel® NUC BIOS Settings Glossary BACK Port Configuration Information Devices Information only Displays information for: • UEFI Driver • Adapter PBA • Chip Type • PCI Device ID • PCI Bus:Device:Function • Link Status • Factory MAC Address Portable Device Charging Mode Devices • Off • Charging in S3/S4/S5 • Charging Only USB ports that are colored yellow support a Portable Device Charging Mode with higher maximum current.
Intel® NUC BIOS Settings Glossary BACK Processor Idle State Performance • High Performance • Low Power High Performance forces the operating system to use the Maximum Multiplier at all times. Low Power allows the operating system to adjust the multiplier down. Processor Power Efficiency Policy Power • High Performance • Balanced • Low Power Configures processor bias for power efficiency vs. performance.
Intel® NUC BIOS Settings Glossary BACK R BIOS Setting Real-Time Performance Tuning Appears on BIOS Screen… Performance Options Checkbox Description / Purpose Enabled: OS-present software can update most performance tuning features without requiring a restart to take affect. Disabled: only BIOS can update most performance tuning features. This is the more secure configuration.
Intel® NUC BIOS Settings Glossary Serial Port Set Hard Disk Drive Password BACK Devices Security Checkbox User defined Enables or disables the onboard serial port. Sets the Hard Disk Drive password If a HDD Password is created, it must be entered each boot before operating system access. HDD Passwords are not recoverable and cannot be removed without the original password. The drive will remain inaccessible unless the HDD or Master Key HDD password is entered.
Intel® NUC BIOS Settings Glossary BACK Sustained Mode Power Limit (Watts) Performance Numeric Intel Turbo Boost Technology will control processor power usage to the Sustained Mode Power Limit over a moving average time window. Sustained Mode Time (Seconds) Performance 1 - 32 seconds Intel Turbo Boost Technology will control processor power usage to the Sustained Mode Power Limit over a moving average time window.
Intel® NUC BIOS Settings Glossary BACK T BIOS Setting tCL Appears on BIOS Screen… Performance Options Numeric Description / Purpose CAS Latency: # cycles between request for data and data read. tCWL TDC Current Limit Override (Amps) Performance Performance Numeric Numeric CAS Write Latency Intel Turbo Boost Technology will be disengaged if the processor is operating beyond this current limit.
Intel® NUC BIOS Settings Glossary BACK tWRDD Performance Numeric Minimum time between Write-CAS to Read-CAS to different DIMMs in DCLKs tWRDR Performance Numeric Minimum time between Write-CAS to Read-CAS to different ranks on the same DIMMs in DCLKs tWRSR Performance Numeric Minimum time between Write-CAS to Read-CAS to different banks on the same ranks in DCLKs tWTR Performance Numeric Write to Read: # cycles between write and next read commands.
Intel® NUC BIOS Settings Glossary USB Optimization BACK Boot Checkbox Enabled: all USB devices will be unavailable until after the operating system boots, but BIOS will boot faster. Disabled: USB devices will be available before the operating system boots, but BIOS will boot slower. This feature cannot be enabled while a User Password or Hard Drive Password is installed. USB Port x • Enabled • Disabled • No Detect Devices Allows you to enable or disable individual USB ports.
Intel® NUC BIOS Settings Glossary VR Current Limits (ICCmax) BACK Power Numeric range 1 - 40 Intel Turbo Boost Technology will be disengaged if the processor is operating beyond this current limit. BIOS Setting Wake on LAN Appears on BIOS Screen… Devices Options Checkbox Description / Purpose Enable this option to wake the system with a magic packet.