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Csm16 parameters, Etx-oh / bios operation – Kontron ETX-OH User Manual

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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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