Penguin Computing R270-B2O, Technical Manual, Page: 56 / 126

- 55 - BIOS Setup
5-2-4 CSM Configuration
Compatibility Support Module Configuration
CSM Support
Enable/Disable Compatibility Support Module (CSM) support.
Options available: Enabled/Disabled. Default setting is Enabled .
CSM16 Module Version
Display CSM Module version information.
Gate20 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 available: Upon Request/Always. Default setting is
Upon Request .
Option ROM Messages
Option ROM Messages.
Options available: Force BIOS/Keep Current. Default setting is
Force BIOS .
INT19 Endless Retry
Enabled: Allowed headless retry boot
Options available: Enabled/Disabled. Default setting is
Enabled .
Boot option filter
Determines which devices system will boot to.
Options available: UEFI and Legacy/Legacy only/UEFI only. Default setting is
UEFI and Legacy .