SINGA
386/25 SYSTEM BOARD
|
Processor |
80386DX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
CEI |
|
Dimensions |
330mm x 219mm |
|
I/O Options |
32-bit external memory card slot |
|
NPU Options |
80287/80387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
32-bit external memory card |
J17 |
Reset switch |
JP7 |
|
Speaker |
J19 |
Turbo switch |
JP9 |
|
Power LED & keylock |
J20 |
Turbo LED |
JP10 |
|
External battery |
J21 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP1 |
Closed | |
|
Monitor type select monochrome |
JP1 |
Open | |
|
Factory configured - do not alter |
JP2 |
Closed | |
|
Factory configured - do not alter |
JP3 |
Closed | |
|
Battery select internal |
JP6 |
Closed | |
|
Battery select external |
JP6 |
Open | |
|
Factory configured - do not alter |
JP8 |
pins 1 & 2 closed | |
|
Note:The location of JP8 is unknown | |||
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
NPU CONFIGURATION | ||
|
Type |
JP4 |
JP5 |
|
80287 |
Open |
Closed |
|
80387 |
Closed |
Open |
|
Disabled |
Open |
Open |
|
DRAM CONFIGURATION 386-MEM 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) 1M x 9 |
NONE |
NONE |
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 |
