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386A Motherboard Settings and Configuration |
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UNIDENTIFIED
386A
Processor |
80386DX |
Processor Speed |
20/25MHz |
Chip Set |
C & T |
Max. Onboard DRAM |
8MB |
Cache |
None |
BIOS |
AMI |
Dimensions |
330mm x 225mm |
I/O Options |
32-bit external memory card slot |
NPU Options |
80387/3167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Turbo LED |
J16 |
Power LED & keylock |
J20 |
Turbo switch |
J17 |
External battery |
J21 |
Reset switch |
J18 |
32-bit external memory card |
S1 |
Speaker |
J19 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
NPU select 3167 or none |
JP1 |
pins 3 & 4 closed |
NPU select 80387 |
JP1 |
pins 1 & 2 closed | |
» |
Monitor type select monochrome |
JP5 |
pins 1 & 2 closed |
Monitor type select color |
JP5 |
pins 2 & 3 closed | |
» |
Battery type select internal |
JP7 |
pins 1 & 2 closed |
Battery type select external |
JP7 |
pins 2 & 3 closed |
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 |
DRAM JUMPER CONFIGURATION | ||||
Size |
JP2 |
JP2A |
JP3 |
JP3A |
1MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
2MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
4MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
8MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
CPU SPEED CONFIGURATION | |
Speed |
JP4 |
20MHz |
pins 1 & 2 closed |
25MHz |
pins 2 & 3 closed |
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