ARNOS INSTRUMENTS & COMPUTER SYSTEMS, INC.
386SX-16-20-25
|
Processor |
80386SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
None |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
Quadtel |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
X6 |
Power LED & keylock |
X14 |
|
Turbo LED |
X11 |
Status display |
X17 |
|
Reset switch |
X12 |
Speaker |
X21 |
|
Turbo switch |
X13 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Battery installed < 5VDC |
S1 |
pins 1 & 2 closed | |
|
Battery installed > 5VDC |
S1 |
pins 2 & 3 closed | |
|
CPU speed select switchable at keyboard |
S2 |
pins 2 & 3 closed | |
|
CPU speed select switchable at turbo switch |
S2 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
SW1/1 |
N/A | |
|
NPU enabled |
SW1/2 |
Off | |
|
NPU disabled |
SW1/2 |
On | |
|
Normal CPU speed during floppy operations |
SW1/3 |
Off | |
|
Slow CPU speed to 8MHz during floppy operations |
SW1/3 |
On | |
|
Monitor type select monochrome |
SW1/4 |
Off | |
|
Monitor type select color |
SW1/4 |
On | |
|
Factory configured - do not alter |
SW1/5 |
N/A | |
|
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 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
|
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 SWITCH CONFIGURATION | ||||
|
Size |
Banks used |
SW1/6 |
SW1/7 |
SW1/8 |
|
1MB |
0 & 1 |
On |
On |
On |
|
2MB |
0, 1, 2 & 3 |
On |
Off |
On |
|
2MB |
0 |
On |
Off |
Off |
|
4MB |
0 & 1 |
Off |
On |
On |
|
6MB |
0, 1 & 2 |
Off |
Off |
On |
|
8MB |
0, 1, 2 & 3 |
Off |
Off |
Off |