BIOS Settings Glossary - Version 04

Intel® NUC BIOS Settings Glossary BACK
V04 – January 2015 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.
tWWDD
Performance
Numeric
Minimum time between Write-CAS to Write-CAS to
different DIMMs in DCLKs
tWWDR
Performance
Numeric
Minimum time between Write-CAS to Write-CAS to
different ranks on the same DIMMs in DCLKs
tWWSR
Performance
Numeric
Minimum time between Write-CAS to Write-CAS to
different banks on the same ranks in DCLKs
U
BIOS Setting
Appears on BIOS Screen…
Options
Description / Purpose
UEFI Boot
Boot
Checkbox
Enables or disables Unified Extended Firmware Interface
(UEFI) Boot. UEFI Boot must be enabled in order to boot
to a drive larger than 2 TB (terabytes).
Enabled: BIOS will attempt to boot via UEFI before using
the legacy boot sequence.
Disabled: BIOS will use the legacy boot sequence.
For information on UEFI, refer to
http://www.uefi.org/home
Unattended BIOS
Configuration
Security
• Always
Prompt
• Lock
• Temporarily
Skip Prompt
• Never Prompt
Configuring the BIOS via Intel® Integrator Toolkit
normally requires physical presence via a keyboard
response prompt. This prompt can be disabled
temporarily or permanently, or unattended BIOS
configuration can be locked out entirely.
Under-Speed
Threshold (RPM)
Cooling
Numeric
Sets a threshold to allow an alert to be generated if
speed in RPM goes below the set value. A monitoring
utility is required to see this alert.
Under-Voltage
Threshold (V)
Cooling
Numeric
Defines the voltage at or below which run-time
applications can generate an alert.
Unlimited Boot to
Network Attempts
Boot
Checkbox
Enabled: network devices will receive unlimited boot
attempts after the normal boot order has been
exhausted.
Disabled: each boot device will only receive a single
boot attempt.
Unlock Extreme
Voltages
Performance
Checkbox
Warning:
Overriding voltages of the processor and other system
components will shorten their life. Selecting higher
voltages will more noticeably shorten their life.
USB Boot
Boot
Checkbox
Enables or disables booting from USB boot devices.
USB Legacy
Devices
Checkbox
Enables or disables USB Legacy support.
USB Legacy allows USB support under non-USB-aware
operating systems. Disabling USB Legacy will not
disable USB keyboards during BIOS POST, including
BIOS SETUP and Option ROMs.