DEICO ELECTRONICS, INC.
386NSX
|
Processor |
80386SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Parallel port, serial ports (2), floppy drive interface, IDE interface, bus mouse port |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
J13 |
Reset switch |
J19 |
|
Serial port 2 |
J14 |
Speaker |
J21 |
|
Parallel port |
J15 |
Power LED & keylock |
J22 |
|
IDE interface |
J16 |
Turbo switch |
J23 pins 1 & 2 |
|
Floppy drive interface |
J17 |
Turbo LED |
J23 pins 2 & 3 |
|
IDE interface LED |
J18 |
External battery |
R1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Serial port 2 select IRQ3 |
W1 |
pins 1 & 2 closed | |
|
Serial port 2 select IRQ9 |
W1 |
pins 2 & 3 closed | |
|
Serial port 2 disabled |
W1 |
pins 3 & 4 closed | |
|
Serial port 1 select IRQ4 |
W2 |
pins 1 & 2 closed | |
|
Serial port 1 select IRQ5 |
W2 |
pins 2 & 3 closed | |
|
Serial port 1 disabled |
W2 |
pins 3 & 4 closed | |
|
Parallel IRQ select IRQ7 |
W3 |
pins 1 & 2 closed | |
|
Parallel IRQ select IRQ5 |
W3 |
pins 2 & 3 closed | |
|
Parallel port select no interrupt |
W3 |
pins 3 & 4 closed | |
|
Flash BIOS reprogram mode enabled |
W4 |
pins 1 & 2 closed | |
|
Flash BIOS reprogram mode disabled |
W4 |
pins 2 & 3 closed | |
|
Monitor type select color |
W5 |
pins 1 & 2 closed | |
|
Monitor type select monochrome |
W5 |
pins 2 & 3 closed | |
|
BIOS address line normal operation |
W6 |
pins 2 & 3 closed | |
|
BIOS address line inverted |
W6 |
pins 1 & 2 closed | |
|
Mouse IRQ select IRQ9 |
W7 |
pins 1 & 2 closed | |
|
Mouse IRQ select IRQ5 |
W7 |
pins 2 & 3 closed | |
|
CMOS memory normal operation |
W8 |
pins 1 & 2 closed | |
|
CMOS memory clear |
W8 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
W9 |
pins 1 & 2 closed | |
|
Battery type select internal |
W11 |
Closed | |
|
Battery type select external |
W11 |
Open | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
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 |
|
9MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 4M x 9 |
NONE |
|
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
12MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
CPU SPEED CONFIGURATION | ||
|
Size |
W9 |
W10 |
|
16MHz |
pins 2 & 3 closed |
Open |
|
20MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
25MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |