UNIDENTIFIED
386CM
|
Processor |
80386DX |
|
Processor Speed |
25MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
16MB |
|
Cache |
32KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387DX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
BC1 |
Reset switch |
J19 |
|
Power LED & keylock |
J17 |
Speaker |
J20 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
NPU synchronous with CPU |
JP1 |
pins 1 & 2 closed |
|
NPU asynchronous with CPU |
JP1 |
pins 2 & 3 closed | |
|
|
BIOS type select 27512 |
JP4 |
pins 1 & 2 closed |
|
BIOS type select 27256 |
JP4 |
pins 2 & 3 closed | |
|
|
Non-cacheable region select 0E0000-0FFFFF (27512) |
JP5 |
pins 1 & 2 closed |
|
Non-cacheable region select 0F0000-0FFFFF (27256) |
JP5 |
pins 2 & 3 closed | |
|
|
NPU disabled |
JP6 |
pins 1 & 2 closed |
|
NPU enabled |
JP6 |
pins 2 & 3 closed | |
|
|
NPU disabled |
JP8 |
pins 1 & 2 closed |
|
NPU enabled |
JP8 |
pins 2 & 3 closed | |
|
|
32-bit memory access wait state select 4 wait states |
JP10 |
pins 1 & 2 closed |
|
32-bit memory access wait state select 3 wait states |
JP10 |
pins 2 & 3 closed | |
|
|
Turbo speed enabled |
J21 |
Open |
|
Turbo speed disabled |
J21 |
Closed | |
|
|
32-bit memory RAS# & CAS# T state select 1 T state |
JP25 |
pins 1 & 2 closed |
|
32-bit memory RAS# & CAS# T state select 0.5 T state |
JP25 |
pins 2 & 3 closed | |
|
|
Monitor type select color |
SW2 |
pins 1 & 2 closed |
|
Monitor type select monochrome |
SW2 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | |||||
|
Size |
Extended |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
0KB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
1MB |
384KB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
1408KB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
3MB |
2432KB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
4MB |
3456KB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
3456KB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
5MB |
4480KB |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
6MB |
5504KB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
7MB |
6528KB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
8MB |
7552KB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
9MB |
8576KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
|
10MB |
9600KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
12MB |
10624KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
12MB |
11648KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
13MB |
12672KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
|
16MB |
13696KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
14720KB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | ||||
|
Size |
SW4/1 |
SW4/2 |
SW4/3 |
SW4/4 |
|
1MB |
On |
On |
On |
On |
|
1MB |
Off |
On |
On |
On |
|
2MB |
On |
Off |
On |
On |
|
3MB |
Off |
Off |
On |
On |
|
4MB |
On |
On |
Off |
On |
|
4MB |
On |
On |
Off |
On |
|
5MB |
Off |
On |
Off |
On |
|
6MB |
On |
Off |
Off |
On |
|
7MB |
Off |
Off |
Off |
On |
|
8MB |
On |
On |
On |
Off |
|
9MB |
Off |
On |
On |
Off |
|
10MB |
On |
Off |
On |
Off |
|
12MB |
Off |
Off |
On |
Off |
|
12MB |
On |
On |
Off |
Off |
|
13MB |
Off |
On |
Off |
Off |
|
16MB |
On |
Off |
Off |
Off |
|
16MB |
Off |
Off |
Off |
Off |
|
Note:The location of SW4 is unidentified. | ||||
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
0KB |
NONE |
|
32KB |
(4) 8K x 8 |
|
Note: The location of the cache bank is unidentified | |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP2 |
JP3 |
JP22 |
|
0KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
32KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
DMA MODE CONFIGURATION | ||
|
Mode |
JP7 |
JP9 |
|
Normal (processor holds on all DMA & refresh cycles) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Bypass (processor holds on cache DMA invalidation cycles only) |
pins 2 & 3 closed |
pins 2 & 3 closed |