Biostar TZ77B Bios Manual - Page 29

GateA20 Active, Option ROM Messages, Interrupt 19 Capture, CSM Support, BIOS Flash protection, Boot - codes

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TZ77B/TZ75B/T77 UEFI BIOS Manual GateA20 Active Upon Request - GA20 can be disabled using BIOS services. Always - do not allow disabling GA20; this option is useful when any RT code is executed above 1MB Options: Upon Request (Default) / Always Option ROM Messages This item sets the display mode for Option ROM. Options: Force BIOS (Default) / Keep Current Interrupt 19 Capture Interrupt 19 is the software interrupt that handles the boot disk function. When set to Enabled, this item allows the option ROMs to trap interrupt 19. Options: Disabled (Default) / Enabled CSM Support This item enables / disables CSM Support. If Auto is selected, based on OS, CSM will be enabled / disabled automatically. Options: Enabled (Default) / Disabled / Auto BIOS Flash protection While enabled, it can't flash write and flash erase by SMI. Options: Enabled (Default) / Disabled Boot Success Beep When this item is set to Enabled, BIOS will let user know boot success with beep. Options: Enabled (Default) / Disabled UEFI Boot This option enables/disables boot from the UEFI Devices. Options: Disabled (Default) / Enabled 28

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TZ77B/TZ75B/T77 UEFI BIOS Manual
28
GateA20 Active
Upon Request – GA20 can be disabled using BIOS services. Always – do not allow
disabling GA20; this option is useful when any RT code is executed above 1MB
Options:
Upon Request (Default) / Always
Option ROM Messages
This item sets the display mode for Option ROM.
Options:
Force BIOS (Default) / Keep Current
Interrupt 19 Capture
Interrupt 19 is the software interrupt that handles the boot disk function.
When set
to Enabled, this item allows the option ROMs to trap interrupt 19.
Options:
Disabled (Default) / Enabled
CSM Support
This item enables / disables CSM Support. If Auto is selected, based on OS, CSM
will be enabled / disabled automatically.
Options:
Enabled (Default) / Disabled / Auto
BIOS Flash protection
While enabled, it can’t flash write and flash erase by SMI.
Options:
Enabled (Default) / Disabled
Boot Success Beep
When this item is set to Enabled, BIOS will let user know boot success with beep.
Options:
Enabled (Default) / Disabled
UEFI Boot
This option enables/disables boot from the UEFI Devices.
Options:
Disabled (Default) / Enabled