EPSON PowerSpan
System memory map (continued)
Starting
address
960KB
Top of
system
memory
Top of
system
Hex address
1
to
t
to
Oh to
Jumper Settings
Size
64KB
Extended memory
96KB
Reserved for ROM and RAM
expansion boards
2GB +
Limit of system architecture
Function
System BIOS
See the Main System Board Map on page 5 for the location of
the jumpers on the main system board.
Main system board jumper settings
Enables FLASH memory BIOS for
Disables
video controller so
you can install a video controller on
(read/write mode) for any diskette
drive connected to the built-in
Enables write-protection (read-only
mode) for any diskette drive
Changes EISA configuration or
SETUP values stored in non-volatile
Disables and clears the power-on
installed in Bank 0
16MB or 32MB
are installed
installed in Bank 1
16MB or 32MB
are installed
using the EISA Configuration utility or
address to
if you installed a
Starting video controller address is
* Default setting
SIMM Installation
There are four SIMM sockets organized in two banks on the
main system board. You can install 36-bit, tin-plated,
page mode, single or double-sided SIMMs with a capacity of
or
running at
or a capacity of
16ME or 32ME running at 70ns or
Check the following
guidelines to ensure that you choose the correct type of
SIMMs and install them properly:
Use only 36-bit, tin-plated, fast-page mode, single- or
double-sided SIMMs that operate at an access speed of 70
or nanoseconds (ns). You can install
or
SIMMs and 16ME or
SIMMs.
Fill each bank with two SIMMs of the same size.
Install SIMMs in Bank 0 first (sockets JO550 and J0551).
Then use Bank 1 (sockets JO650 and J0651).
The table below lists some sample memory configurations.
You can install SIMMs in many different configurations than
those listed in the table.
SIMM configurations
T
t
I
t
t
t
t
32 MB
32 MB
*Standard memory configuration
Video Memory Installation
Total
memory
8 MB*
16MB
16MB
24 MB
32 MB
32 MB
64 MB
96 MB
128 MB
The computer comes with 512KE of video memory that you
can increase to 1MB by installing four video DRAM DIP
chips. The chips must be
fast-page mode chips
that operate at 60ns access speed. You must install one chip
in each empty video RAM socket.
The table bellow lists the video DRAM DIP chips that are
approved for use in the computer.
Video
chip types
Manufacturer
Hyundai
Fuiitsu
Part number
10/94
EPSON PowerSpan-7
