Software; Shadow Ram Enable; Ems Driver Setup - Datatech Enterprises Apex 386SX/20 User Manual

6-3

Software

Your system supports shadow RAM and Expanded Memory System
(EMS) to increase the system memory capability.
Note that If you have more than one megabyte memory, you may
enable or disable the 384K memory as shadow RAM. The 384K is
always allocated at the same address for shadow RAM, even if you
disable the shadow RAM.
Important:
You can only enter the setup program by pressing <Esc> when the
power is just switched on. You may reset the system to enter the setup
program, too.

Shadow RAM Enable

For efficient execution of BIOS, it is preferable to run BIOS code
through RAM rather than through the slower EPROMs. Your system
can support shadow RAM for BIOS and video.
To enable shadow RAM, follow the steps below:

EMS Driver Setup

The mainboard supports LIM 4.0 EMS. Toset up the EMS driver, follow
the steps below :
Note:
If you only have one megabyte onboard memory, you must disable the
shadow RAM function first in order to use 384K extended memory as
expanded memory.
Chapter 6: Appendix
10
ž Hold down the <Esc> key to enter the setup program as you
turn the power on.
• Select item 6 to enter the NEAT Chip Setup Configuration
menu.
• Select item 1 to enable BIOS or video shadow RAM. (Refer
to the BIOS manual for details.)
Hold down the <Esc> key to enter the setup program.
l
Choose item 6 to enter the NEAT Chip Setup Configuration
menu. From this menu, you may enable EMS and select
EMS size. (Refer to the BIOS manual for details.)