Specifications
Jumper Settings
SIMM Installation
See the Main System Board Map on page
4
for the location of
the jumpers on the main system board.
Main system board jumper settings
EPSON PowerSpan
There are four SIMM sockets organized in two banks on the
main system board. You can install 36-bit, tin-plated, fast-
page mode, single or double-sided SIMMs with a capacity of
1MB, 2MB, 4MB, or 8MB running at 70ns or a capacity of
16MB or 32MB running at 70ns or
8011s.
Check the following
guidelines to ensure that you choose the correct type of
SIMMs and install
them
properly:
Ll
Use only 36-bit, tin-plated, fast-page mode, single- or
double-sided SIMMs that operate at an access speed of 70
or
80
nanoseconds (ns). You can install
lMB,
2MB,
4MB,
or 8MB
8Ons
SlMMs and 16MB or 32MB
7011s
SIMMs.
CI
Fill each bank with two SIMMs of the same size.
Cl
Install SIMMs in Bank 0 first (sockets J0550 and
JO551).
Then use Bank 1 (sockets
J0650
and J0651).
The table below lists some sample memory configurations.
You can install SIMMs in many different configurations than
those listed in the table.
SJ!MM
wnj&z4rations
*Standard memoty configuration
Power-on Diagnostic and Boot Errors
-
Detault
setung
CPU Card Jumpers
The PowerSpan comes with a CPU card. Set the jumpers on
the card according to the table below.
When the power-on diagnostic tests detect an error, the
computer displays a message on the screen (as described
below) and the speaker beeps twice. If the error occurs before
the computer initializes the video display, the speaker sounds
a series of beeps.
CPU
cd
jumpers
CPU card processor
66 MHz DX2
OverDrive
P24T
Each error is identified by a message number and a
countdown number which the computer uses as it executes
the test associated with the error.
Jl
J2
J4 J5
1-2
1-2
1-2
1-2
1-2 1-2
l-2
1-2
The table below lists the power-on diagnostic and boot error
messages, and some basic solutions to the problems.
Power-on diagnostic and boot error messages
OverDrive Modules
number
number
I
huge
1
sohllon
840
I
1
Start of power-on
1
Not an error
You can install an Intel
l?24T
OverDrive processor on the
CPU card.
830
diagnostics
CPU register test Not an error
Epson PowerSpan-8
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