SOFTSYS COMPUTER CENTERS, INC.
80386SX
|
Processor |
80386SX |
|
Processor Speed |
8/16MHz |
|
Chip Set |
C & T NEAT |
|
Max. Onboard DRAM |
8MB |
|
SRAM Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Turbo LED |
J5 |
|
Speaker |
J2 |
External battery |
J6 |
|
Turbo switch |
J3 |
Auxiliary keyboard |
J7 |
|
Reset switch |
J4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
NPU mode select synchronous with CPU |
JP4 JP6 |
open pins 2 & 3 closed | |
|
NPU mode select asynchronous with CPU |
JP4 JP6 |
closed pins 1 & 2 closed | |
|
NPU enabled |
JP5 |
closed | |
|
NPU disabled |
JP5 |
open | |
|
BIOS ROM type select 27256 |
JP7 |
pins 1 & 2 closed | |
|
BIOS ROM type select 27512 |
JP7 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
JP8 |
pins 2 & 3 closed | |
|
Monitor type select color |
JP8 |
pins 1 & 2 closed | |
|
8042 switch CPU speed select pin 23 |
JP9 |
pins 1 & 2 closed | |
|
8042 switch CPU speed select pin 30 |
JP9 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0(SIMM) |
Bank 1 (SIMM) |
Bank 2 (DIP) |
Bank 3 (DIP) |
|
512KB 1 |
(2) 256K x 9 |
NONE |
NONE |
NONE |
|
512KB 2 |
NONE |
NONE |
(18) 41256 |
NONE |
|
1MB 1 |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
|
1MB 2 |
NONE |
NONE |
(18) 41256 |
(18) 41256 |
|
1.5MB 1 |
(2) 256K x 9 |
(2) 256K x 9 |
(18) 41256 |
NONE |
|
1.5MB 2 |
(2) 256K x 9 |
NONE |
(18) 41256 |
(18) 41256 |
|
2MB 1 |
(2) 256K x 9 |
(2) 256K x 9 |
(18) 41256 |
(18) 41256 |
|
2MB 1 |
(2) 1M x 9 |
NONE |
NONE |
NONE |
|
2MB 2 |
NONE |
NONE |
(18) 411000 |
(18) 411000 |
|
4MB 1 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
|
4MB 2 |
(2) 1M x 9 |
NONE |
(18) 411000 |
(18) 411000 |
|
5MB 1 |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 41256 |
(18) 41256 |
|
5MB 1 |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 411000 |
NONE |
|
5MB 2 |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 41256 |
(18) 41256 |
|
6MB 1 |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 411000 |
(18) 411000 |
|
6MB 2 |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 411000 |
(18) 411000 |
|
8MB 1 |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
Note 1 :Jumpers JP1 and JP2 pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10,and 11 & 12 closed. | ||||
|
Note 2 :Jumpers JP1 and JP2 pins 1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, and 6 & 7 closed. | ||||