User`s guide

Advanced mode system board options (continued)
Option
Slot 4 A EN
Control
Settings
EISA Compatible*
ISA Compatible
Description
When dot 4 is set to EISA
Compatible, it uses the ElSA
geographicaladdressing
scheme. If you set dot 4 to ISA
Compatible, it allowsall types of
I/O accesses that may be
required by option cards
addressed in the range 0-255.
* Default setting
The options described in the next two tables configure the
built-in SCSI controller and your SCSI devices.
Built-in SCSI controller options
Option
Enabled SCSI
Controller
Bus Release Time
Settings
Boot from SCSI, BIOS
Mapped to C0000h
Boot from SCSI, BIOS
Mapped to C8000h*
Boot from SCSI, BIOS
Mapped to E0000h
Boot from SCSI, BIOS
Mapped to EC000h
SCSI Hardware
Enabled - SCSI BIOS
Disabled
Disabled
60 BC LKS*
44 BC LKS
28 BC LC KS
12 BC LC KS
2 BC LC KS
Description
Select one of the Boot from
SCSI options to enable the
SCSI BIOS at the indicated
address and enable the
SCSI controller; select SCSI
Hardware Enabled -SCSI
BlOS Disabled when you
boot from a non - SCSI drive
to enable the SCSI
hardware but not load the
SCSI BIOS if you are not
using the built-in SCSI
sub system, select Disabled
This option sets the amount
of time the SCSI controller
continues to transfer data
afterbeing pre-empted by
a busmaster. The default
setting of 60 BC LC KS (bus
clocks) is usually sufficient. If
you install multiple bus
master option cards select
one of the faster settings to
free the ElSA bussooner.
Running the EISA Configuration Utility
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