OGIVAR, INC.
INTERSYSTEM 386/25
|
Processor |
80386DX |
|
Processor Speed |
25MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
16MB (on external memory card) |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card (2) |
|
NPU Options |
80287/80387DX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J2 |
Reset switch |
JP3 or JP8 |
|
Speaker |
J5 |
32-bit external memory card |
SL1 & SL2 |
|
Power LED & keylock |
J6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
J4 |
N/A |
|
|
Factory configured - do not alter |
J7 |
N/A |
|
|
Battery type select external |
JP1 |
Open |
|
Battery type select internal |
JP1 |
Closed | |
|
|
Monitor type select color |
JP2 |
Closed |
|
Monitor type select monochrome |
JP2 |
Open | |
|
|
Power good signal detect from power supply |
JP4 |
pins 2 & 3 closed |
|
Power good signal detect from board |
JP4 |
pins 1 & 2 closed | |
|
|
NPU synchronous with CPU |
JP5 |
pins 1 & 2 closed |
|
NPU asynchronous with CPU |
JP5 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION (EXTERNAL MEMORY CARD) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
6MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
NPU TYPE SELECT | |||
|
Type |
JP6 |
JP7 | |
|
None |
Closed |
Open | |
|
80287 |
Closed |
Open | |
|
80387 |
Open |
Closed | |
|
Note: Exact location of JP6 & JP7 is approximate. Both jumpers are labeled on the board. | |||