OGIVAR INC.
INTERSYSTEM 386SX
Processor |
80386SX (exact location unidentified) |
Processor Speed |
16/20MHz |
Chip Set |
Unidentified |
Max. Onboard DRAM |
8MB |
Cache |
None |
BIOS |
Unidentified |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
80387SX (exact location unidentified) |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
J2 |
Speaker |
J13 |
Reset switch |
J11 |
Power LED & keylock |
J14 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Factory configured - do not alter |
J12 |
N/A |
» |
Factory configured - do not alter |
J15 |
N/A |
» |
Battery type select external |
JP1 |
Open |
Battery type select internal |
JP1 |
pins 1 & 2 closed | |
» |
BIOS type select 27256 |
JP2 |
pins 2 & 3 closed |
BIOS type select 27128 |
JP2 |
pins 1 & 2 closed | |
» |
Monitor type select color |
JP4 |
Closed |
Monitor type select monochrome |
JP4 |
Open | |
» |
NPU disabled |
JP7 |
Closed |
NPU enabled |
JP7 |
Open | |
» |
Pipeline mode enabled |
JP8 |
Closed |
Pipeline mode disabled |
JP8 |
Open | |
Note: NPU must be synchronous with CPU. |
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 |
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
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 |
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
Note: Banks locations are unidentified and are labeled on the board in the following manner: | ||||
Bank 0: SIMM 4 & 8 | ||||
Bank 1: SIMM 3 & 7 | ||||
Bank 2: SIMM 2 & 6 | ||||
Bank 3: SIMM 1 & 5 |