UNIDENTIFIED
386SX-S NON CACHE MAINBOARD MODEL 3
|
Processor |
80386SX/CX486SLC |
|
Processor Speed |
25/33/40MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP1 |
Turbo LED |
JP7 |
|
Turbo switch |
JP5 |
Power LED & keylock |
JP8 |
|
Reset switch |
JP6 |
Speaker |
JP9 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Monitor type select color |
JP3 |
Closed |
|
Monitor type select monochrome |
JP3 |
Open | |
|
|
NPU synchronous with CPU |
JP4 |
pins 1 & 2 closed |
|
NPU asynchronous with CPU |
JP4 |
pins 2 & 3 closed | |
|
|
CPU speed select 40MHz |
JP10 |
pins 1 & 2 closed |
|
CPU speed select 33MHz |
JP10 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 9 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |