Lenovo ThinkPad T520 (English) User Guide - Page 227

ThinkPad LCD, OS Detection for NVIDIA

Page 227 highlights

Table 8. Config menu items (continued) Menu item Submenu item Display Boot Display Device Graphics Device Power OS Detection for NVIDIA Optimus Intel SpeedStep® technology (Intel SpeedStep mounted models only) Adaptive Thermal Management Selection • ThinkPad LCD • Analog (VGA) • Digital on ThinkPad • Digital 1 on dock • Digital 2 on dock Comments Select the display device that is to be active at boot time. This selection is effective for boot time, password prompt, and ThinkPad Setup. "Digital on Thinkpad" is DisplayPort on your computer. • Integrated Graphics • Discrete Graphics • NVIDIA Optimus "Digial 1 on dock" and "Digital 2 on dock" are DisplayPort or DVI on docking station. Integrated Graphics will achieve longer battery life, and Discrete Graphics enhances performance. NVIDIA Optimus runs as Integrated Graphics mode and Discrete Graphics is enabled on demand. Note: NVIDIA Optimus mode should only be selected if you are using a Windows 7 model. • Disabled • Enabled System BIOS automatically switches Graphics device setting to NVIDIA Optimus mode if the OS supports the feature, and to Discrete Graphics if the OS does not support it. • Disabled • Enabled Select the mode of Intel SpeedStep technology at runtime. Mode for AC • Maximum Performance • Battery Optimized Mode for Battery Maximum Performance: Always highest speed Battery Optimized: Always lowest speed • Maximum Performance • Battery Optimized Disabled: No runtime support, lowest speed Scheme for AC • Maximize Performance • Balanced Scheme for Battery This selects a thermal management scheme to use. Maximize Performance: Reduces CPU throttling • Maximize Performance Chapter 8. Advanced configuration 209

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Table 8. Config menu items (continued)
Menu item
Submenu item
Selection
Comments
Boot Display Device
ThinkPad LCD
Analog (VGA)
Digital on ThinkPad
Digital 1 on dock
Digital 2 on dock
Select the display device
that is to be active at boot
time.
This selection is
effective for boot time,
password prompt, and
ThinkPad Setup.
“Digital on Thinkpad”
is DisplayPort on your
computer.
“Digial 1 on dock” and
“Digital 2 on dock” are
DisplayPort or DVI on
docking station.
Graphics Device
Integrated Graphics
Discrete Graphics
NVIDIA Optimus
Integrated Graphics will
achieve longer battery life,
and Discrete Graphics
enhances performance.
NVIDIA Optimus runs as
Integrated Graphics mode
and Discrete Graphics is
enabled on demand.
Note:
NVIDIA Optimus
mode should only be
selected if you are using a
Windows 7 model.
Display
OS Detection for NVIDIA
Optimus
Disabled
Enabled
System BIOS automatically
switches Graphics device
setting to NVIDIA Optimus
mode if the OS supports
the feature, and to Discrete
Graphics if the OS does not
support it.
Intel SpeedStep
®
technology (Intel
SpeedStep mounted
models only)
Disabled
Enabled
Mode for AC
Maximum Performance
Battery Optimized
Mode for Battery
Maximum Performance
Battery Optimized
Select the mode of Intel
SpeedStep technology at
runtime.
Maximum Performance:
Always highest speed
Battery Optimized:
Always
lowest speed
Disabled:
No runtime
support, lowest speed
Adaptive Thermal
Management
Scheme for AC
Maximize Performance
Balanced
Scheme for Battery
Maximize Performance
This selects a thermal
management scheme to
use.
Maximize Performance:
Reduces CPU throttling
Power
Chapter 8
.
Advanced configuration
209