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Lenovo ThinkCentre M90a User Manual

Lenovo ThinkCentre M90a
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Set the system date and time
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Main System Time & Date and press Enter.
3. Set the system date and time as desired.
4. Press F10 or Fn+F10 to save the changes and exit.
Change the startup sequence
If the computer does not start up from a device as expected, you can change the startup device sequence
permanently or select a temporary startup device.
Change the startup device sequence permanently
1. Depending on the type of the storage device, do one of the following:
If the storage device is internal, go to step 2.
If the storage device is a disc, ensure that the computer is on or turn on the computer. Then, insert
the disc into the optical drive.
If the storage device is an external device other than a disc, connect the storage device to the
computer.
2. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
3. Select Startup, and then follow the on-screen instructions to change the startup sequence.
4. Press F10 or Fn+F10 to save the changes and exit.
Select a temporary startup device
Note: Not all discs and storage drives are bootable.
1. Depending on the type of the storage device, do one of the following:
If the storage device is internal, go to step 2.
If the storage device is a disc, ensure that the computer is on or turn on the computer. Then, insert
the disc into the optical drive.
If the storage device is an external device other than a disc, connect the storage device to the
computer.
2. Restart the computer. When the logo screen is displayed, press F12 or Fn+F12.
3. Select the storage device as desired and press Enter.
If you want to change the startup device sequence permanently, select Enter Setup on Startup Device Menu
and press Enter to enter the BIOS menu.
Enable or disable the configuration change detection feature
If you enable configuration change detection, when the POST detects configuration changes of some
hardware devices (such as storage drives or memory modules), an error message will be displayed when you
turn on the computer.
To enable or disable the configuration change detection feature:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security Configuration Change Detection and press Enter.
3. Enable or disable the feature as desired.
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M70a and M90a User Guide

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Lenovo ThinkCentre M90a Specifications

General IconGeneral
StorageUp to 2TB HDD or 1TB SSD
ProcessorUp to 10th Gen Intel Core i9
MemoryUp to 64GB DDR4
GraphicsIntegrated Intel UHD Graphics 630
Display23.8-inch FHD (1920x1080) IPS
Operating SystemWindows 10 Pro
PortsHDMI, DisplayPort, Ethernet, audio jack
AudioIntegrated stereo speakers, dual array microphone
WirelessWi-Fi 6, Bluetooth 5.1

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