Kontron ETX-OH - Manual (Page 94)

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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