Instruction Manual

ECM-KA User’s Manual
62 ECM-KA User’s Manual
3.6.4.1 CSM16 Parameters
Item
Option
Description
GateA20 Active
Upon Request[Default]
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[Default]
Keep Current
Set display mode for Option ROM.
INT19 Trap Response
Immediate[Default]
Postponed
BIOS reaction on INT19 trapping by Option
ROM: IMMEDIATE – execute the trap right
away; POSTPONED – execute the trap during
legacy boot.