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. |