User Guide

- 43 - BIOS Setup
2-2-4 CSMConguration
CompatibilitySupportModuleConguration
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.
INT19 Trap Response
BIOS reaction on INT19 trapping by Option ROM
Immediate: execute the trap right away.
Postpone: execute the trap during legacy boot.
Options available: Immediate/Postpone. Default setting is Immediate.