Lenovo ThinkPad 1 Gen Z13, User Manual, Page: 50 / 72

3. Navigate the interface by pressing the following keys, and then see details by selecting each item.
• ↑↓ : Move keyboard focus
• PgUp / PgDn: Scroll page
• Enter: Select
• F3: Exit
The following BIOS event logs might be listed on your screen depending on the UEFI BIOS activities. Each
log consists of date, time, and a description of the event.
• Power On event: this log shows Power On Self Test (POST) routine has started with power-on process. It
includes power on reason, boot mode and shutdown reason.
• Subcomponent Code Measurement event: this log shows subcomponent code measurement has
worked. It includes validation result of each component.
• System Preboot Authentication event: this log shows what credential was provided to gain preboot
authentication. It includes installed password, password type, input device and authentication result.
• BIOS Password Change event: this log shows changes of the UEFI BIOS passwords. It includes
password type, event type and result.
• Subcomponent Self-healing event: this log shows information about the subcomponent where the
recovery event occurred. It includes event cause, recovered firmware version and result.
• BIOS Setup Configuration Change event: this log shows changes of UEFI BIOS Setup configuration. It
includes item name and value.
• Device Change event: this log shows changes of devices. It includes event cause and event type.
• System Boot event: this log shows which boot device was utilized to boot the system. It includes boot
option, description and file path list.
• System Tamper event: this log shows occurrence of system tamper events. It includes event cause and
event type.
• Runtime Intrusion Detection of SPI Flash event: this log shows system has detected unauthorized/
suspicious access to SPI Flash. It includes event cause and region.
• On-Demand Measurement event: this log shows On- Demand measurement has worked. It includes
validation result of each component.
• POST Error event: this log shows occurrence of errors during POST routine. It includes the error code.
• Flash Update event: this log shows occurrence of flash update. It includes event cause, updated firmware
version and result.
• Set On-Premise event: this logs shows changes of on-premise boot setting. It includes on-premise
setting value and change method.
• Capsule Update event: this log shows occurrence of UEFI capsule firmware update. It includes event
cause, updated firmware version and result.
• Log Cleared event: this log shows clearing BIOS event log has executed. It includes event cause and
result.
• Shutdown / Reboot event: this log shows UEFI BIOS is successfully shut down or the system is
rebooted. It includes event cause and event type.
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:
• Memory module replacement
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Z13 Gen 1 and Z16 Gen 1 User Guide