Change The Ice Performance Mode; Change Bios Settings Before Installing A New Operating System; Update Uefi Bios - Lenovo ThinkCentre M90a User Manual

• Press the power button.
• Enable the Wake Up on Alarm feature to make the computer wake up at a set time.
To meet the off mode requirement of ErP compliance, you need to disable the Fast Startup function.
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options ➙ Choose what the power buttons do ➙ Change settings that are currently
unavailable.
3. Clear the Turn on fast startup (recommended) option from the Shutdown settings list.

Change the ICE performance mode

You can adjust the acoustic and thermal performance of your computer by changing the ICE performance
mode. Three choices are available:
• Best Performance (default setting): The computer works at a better thermal level with normal acoustic
performance.
• Best Experience: The computer works at the best experience with balanced noise and better
performance.
• Full Speed: All fans in the computer will run at full speed.
To change the ICE performance mode:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Power ➙ Intelligent Cooling Engine (ICE) and press Enter.
3. Select ICE Performance Mode and press Enter.
4. Set the ICE performance mode as desired.
5. Press F10 or Fn+F10 to save the changes and exit.

Change BIOS settings before installing a new operating system

BIOS settings vary by operating system. Change the BIOS settings before installing a new operating system.
Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular
Windows 10 version, check the compatibility list for the Windows version. For details, go to:
https://support.lenovo.com/us/en/solutions/windows-support
To change the BIOS settings:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. From the main interface, select Security ➙ Secure Boot and press Enter.
3. Depending on the operating system to be installed, do one of the following:
• To install the Windows 10 (64-bit) and most of Linux operating system, select Enabled for Secure
Boot.
• To install an operating system that does not support secure boot, select Disabled for Secure Boot.
4. Press F10 or Fn+F10 to save the changes and exit.

Update UEFI BIOS

When you install a new program, device driver, or hardware component, you might need to update UEFI
BIOS. You can update the BIOS from your operating system or a flash update disc (supported only on
selected models).
32
M70a and M90a User Guide