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Table 6. Config menu items (continued)<br />
Menu item Submenu item Selection Comments<br />
Display<br />
Power<br />
Boot Display Device • ThinkPad LCD<br />
• Analog (VGA)<br />
• Digital on ThinkPad<br />
• Digital 1 on dock<br />
• Digital 2 on dock<br />
Graphics Device • Integrated Graphics<br />
OS Detection for NVIDIA<br />
Optimus<br />
Intel SpeedStep ®<br />
technology (Intel<br />
SpeedStep mounted<br />
models only)<br />
• Discrete Graphics<br />
• NVIDIA Optimus<br />
• Disabled<br />
• Enabled<br />
• Disabled<br />
• Enabled<br />
Mode for AC<br />
• Maximum Performance<br />
• Battery Optimized<br />
Mode for Battery<br />
• Maximum Performance<br />
• Battery Optimized<br />
Select the display device<br />
that is to be active at boot<br />
time. This selection is<br />
effective for boot time,<br />
password prompt, and<br />
ThinkPad Setup.<br />
“Digital on Thinkpad”<br />
is DisplayPort on your<br />
computer.<br />
“Digial 1 on dock” and<br />
“Digital 2 on dock” are<br />
DisplayPort or DVI on<br />
docking station.<br />
Integrated Graphics will<br />
achieve longer battery life,<br />
and Discrete Graphics<br />
enhances performance.<br />
NVIDIA Optimus runs as<br />
Integrated Graphics mode<br />
and Discrete Graphics is<br />
enabled on demand.<br />
Note: NVIDIA Optimus<br />
mode should only be<br />
selected if you are using a<br />
Windows 7 model.<br />
System BIOS automatically<br />
switches Graphics device<br />
setting to NVIDIA Optimus<br />
mode if the OS supports<br />
the feature, and to Discrete<br />
Graphics if the OS does not<br />
support it.<br />
Select the mode of Intel<br />
SpeedStep technology at<br />
runtime.<br />
Maximum Performance:<br />
Always highest speed<br />
Battery Optimized: Always<br />
lowest speed<br />
Disabled: No runtime<br />
support, lowest speed<br />
Chapter 8. Advanced configuration 189