FIRST INTERNATIONAL COMPUTER, INC.
386SX-16/20V
|
Processor |
80386SX |
|
Processor Speed |
16/20MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
AMI/Award/Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
J13 |
Reset switch |
J15 |
|
Speaker |
J14 |
Power LED & keylock |
J16 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Monitor type select monochrome |
J2 |
pins 2 & 3 closed | |
|
Monitor type select color |
J2 |
pins 1 & 2 closed | |
|
640K to 1M DRAM re-mapping disabled |
J5 |
pins 2 & 3 closed | |
|
Memory access 2 wait states/ I/O select 6 wait states |
J8 |
pins 1 & 2 closed | |
|
Memory access 1 wait state/ I/O select 4 wait states |
J8 |
pins 2 & 3 closed | |
|
NPU enabled |
J9 |
pins 1 & 2 closed | |
|
NPU disabled |
J9 |
pins 2 & 3 closed | |
|
NPU mode select synchronous with CPU clock |
J10 |
pins 1 & 2 closed | |
|
NPU mode select synchronous with crystal installed at OSC1 |
J10 |
pins 2 & 3 closed | |
|
CPU speed select 20MHz |
J11 |
pins 1 & 2 closed | |
|
CPU speed select 16MHz |
J11 |
pins 2 & 3 closed | |
|
CPU speed select fast |
J12 |
Open | |
|
CPU speed select slow |
J12 |
pins 2 & 3 closed | |
|
CPU speed select switchable from keyboard |
J12 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
J17 |
N/A | |
|
Factory configured - do not alter |
J18 |
N/A | |
|
Shadow RAM enabled |
SW1/1 |
On | |
|
Shadow RAM disabled |
SW1/1 |
Off | |
|
Factory configured - do not alter |
SW1/2 |
N/A | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(2) 256K x 9 |
NONE |
NONE |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
|
1.5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
|
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
NONE |
NONE |
|
3MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
NONE |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
|
5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
|
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
|
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
|
DRAM JUMPER/SWITCH CONFIGURATION | ||||||
|
Size |
J6 |
J7 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
|
512KB |
2 & 3 |
2 & 3 |
Off |
Off |
Off |
Off |
|
1MB |
2 & 3 |
2 & 3 |
On |
Off |
Off |
Off |
|
1.5MB |
2 & 3 |
2 & 3 |
Off |
On |
Off |
Off |
|
2MB |
2 & 3 |
2 & 3 |
On |
On |
Off |
Off |
|
2MB |
1 & 2 |
1 & 2 |
Off |
Off |
On |
On |
|
3MB |
2 & 3 |
1 & 2 |
Off |
On |
On |
Off |
|
4MB |
1 & 2 |
1 & 2 |
On |
Off |
On |
On |
|
5MB |
2 & 3 |
1 & 2 |
On |
On |
On |
Off |
|
6MB |
1 & 2 |
1 & 2 |
Off |
On |
On |
On |
|
8MB |
1 & 2 |
1 & 2 |
On |
On |
On |
On |
|
Note: Pins designated should be in the closed position. | ||||||
|
DRAM WAIT STATE/WRITE SELECT CONFIGURATION | |||
|
Wait state |
Wait select |
SW1/3 |
SW1/4 |
|
2 |
2 |
On |
On |
|
2 |
1 |
On |
Off |
|
1 |
1 |
Off |
Off |
|
BIOS CONFIGURATION | ||
|
Size |
J3 |
J4 |
|
27128 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
27256 |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
27512 |
pins 2 & 3 closed |
pins 2 & 3 closed |