Protech Systems BM-0947 User Manual page 76

4-6-2. CSM16 Parameters
BIOS Setting
CSM16 Module
Version
GateA20 Active
Option ROM
Messages
INT19 Trap
Response
'
BM-0947 USER S MANUAL
CSM16 parameters screen
Options
78.d0
- Upon Request
- Always
- Force BIOS
- Keep Current
- Immediate
- Postponed
Chapter 4 BIOS Setup
Description/Purpose
CSM version information
Specifies Gate-A20 logic gate status.
At boot time, Gate-A20 is enabled
when counting and testing of all the
system's memory and disabled before
transferring control to OS.
Allows the POST screen to display
Option ROM messages.
When enabled it allows host adapters
ROM BIOS to capture Interrupt 19
during the boot process and
eventually boot from disk(s)
connected to those adapters.
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