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# BEAVER COMPUTER CORPORATION
386SX
Processor 80386SX
Processor Speed 16MHz
Chip Set TI
Max. Onboard DRAM 2MB
Cache None
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O Options External memory card slot
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Power LED & | J1 | Turbo LED | J5 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| External battery | J2 | Turbo switch | J6 |
|-------------------+----------+------------------+----------|
| Speaker | J3 | Onboard power | L1 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Reset switch | J4 | External memory | S1 |
| | | card slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | BIOS type select 27256 | J7 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select 27512 | J7 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | Monitor type select color | SW1/3 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/3 | Off |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/4 | N/A |
| | not alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|---------+------------+------------+------------+-----------|
| 512KB | (4)44256 | NONE | NONE | NONE |
|---------+------------+------------+------------+-----------|
| 1MB | (4)44256 | (4)44256 | NONE | NONE |
|---------+------------+------------+------------+-----------|
| 1.5MB | (4)44256 | (4)44256 | (4)44256 | NONE |
|---------+------------+------------+------------+-----------|
| 2MB | (4)44256 | (4)44256 | (4)44256 | (4)44256 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM PARITY CONFIGURATION |
|------------------------------------------------------------|
| Size | P-0 | P-1 | P-2 | P-3 |
|---------+------------+------------+------------+-----------|
| 512KB | (2)41256 | NONE | NONE | NONE |
|---------+------------+------------+------------+-----------|
| 1MB | (2)41256 | (2)41256 | NONE | NONE |
|---------+------------+------------+------------+-----------|
| 1.5MB | (2)41256 | (2)41256 | (2)41256 | NONE |
|---------+------------+------------+------------+-----------|
| 2MB | (2)41256 | (2)41256 | (2)41256 | (2)41256 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Memory Mode | SW1/1 | SW1/2 |
|--------------------------------------------+-------+-------|
| 100ns Fast Page Mode DRAM, 0 wait states, | Off | Off |
| max. 4 pages active | | |
|--------------------------------------------+-------+-------|
| 100ns Fast Page Mode DRAM, 0 wait states, | Off | On |
| max. 1 page active | | |
|--------------------------------------------+-------+-------|
| All 100ns DRAM, 1 wait state, max. 4 pages | On | Off |
| active | | |
|--------------------------------------------+-------+-------|
| 120ns DRAM, 2 wait states, max. 4 pages | On | On |
| active | | |
+------------------------------------------------------------+