ETX-OH / BIOS Operation
CSM16 Parameters
GateA20 Active
Upon Request
Always
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
Option ROM Messages
Force BIOS
Keep Current
Set display mode for Option ROM
INT19 Trap Response Immediate
Postponed
BIOS reaction on INT19 trapping by Option ROM:
IMMEDIATE - execute the trap right away; POSTPONED -
execute the trap during legacy boot
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