Detect Memory Retraining; Customize Bios Defaults - Lenovo ThinkPad X1 Carbon Gen 12 User Manual

• Set On-Premise event: This log shows the change history of on-premise boot settings. It includes the
value of on-premise settings and the change method.
• Capsule Update event: This log shows the occurrence of UEFI capsule firmware update. It includes the
cause and result of the event, and the updated firmware version.
• Log Cleared event: This log shows UEFI BIOS event logs are cleared. It includes the cause and result of
the event.
• Shutdown / Reboot event: This log shows the UEFI BIOS is successfully shut down or the system is
rebooted. It includes the cause and type of the event.

Detect memory retraining

Memory retraining is a process to initialize the memory module and run diagnostic tests for the memory
module in your computer. The memory retraining might occur during POST if any of the following situations is
detected:
• Total Memory Encryption setting change in UEFI BIOS
• Memory Reference Code (MRC) change when UEFI BIOS update
When memory retraining occurs, the screen might be blank. You might see the LED indicators on Esc, F1,
and F4 blinking sequentially to indicate the progress. Do not press the power button to interrupt the process.
Wait a few minutes until the logo screen is displayed.

Customize BIOS Defaults

The feature provides a solution to backup your preferred BIOS Setup settings. It helps you to save the BIOS
Setup settings as customized BIOS default settings, load them to current BIOS settings when needed, and
reset the settings to Setup Defaults.
Save the customized settings configuration
1. Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
2. Select Restart ➙ Save Custom Defaults.
3. Click Yes to save the settings configuration you customized.
Load the customized settings configuration
1. Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
2. Select Restart ➙ Load Custom Defaults.
3. Click Yes to load the customized settings configuration you saved.
You can also press F9 and click Custom Defaults to load the customized settings configuration.
Note: Load Custom Defaults is unavailable if no customized BIOS default settings are saved.
Reset the settings configuration to Setup Defaults
1. Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
2. Select Restart ➙ Load Factory Defaults.
3. Click Yes to reset the settings configuration to Setup Defaults.
You can also press F9 and click Factory Defaults to reset the settings configuration to Setup Defaults.
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Chapter 5 Configure advanced settings
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