MSI MS-6534 - Manual (Page 103)

AMI ® BIOS Setup
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Additionally, when a password is enabled, you can also have AMIBIOS to
request a password each time the system is booted. This would prevent
unauthorized use of your computer. The setting to determine when the pass-
word prompt is required is the PASSWORD CHECK option of the BIOS FEA-
TURES SETUP menu. If the PASSWORD CHECK option is set to Always, the
password is required both at boot and at entry to Setup. If set to Setup,
password prompt only occurs when you try to enter Setup.
About Supervisor Password & User Password:
Supervisor password: Can enter and change the settings of
the setup menu.
User password: Can only enter but do not have the right
to change the settings of the setup menu.