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# NASCENT TECHNOLOGY, INC.
NT386-33
Processor 80386DX
Processor Speed 33MHz
Chip Set VLSI
Max. Onboard DRAM 8MB
Cache 64/256KB
BIOS AMI
Dimensions 355mm x 304mm
I/O Options 32-bit external memory card slot
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------+----------+------------------------+----------|
| Turbo LED | J3 | Reset switch | J6 |
|-------------+----------+------------------------+----------|
| Power LED & | J4 | Turbo switch | W6 |
| keylock | | | |
|-------------+----------+------------------------+----------|
| Speaker | J5 | 32-bit external memory | S1 |
| | | card | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Factory configured - do | SW1/3 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | DMA clock speed select | W1 | pins 1 & 2 |
| | 8.25MHz | | closed |
|---+---------------------------+---------------+------------|
| | DMA clock speed select | W1 | pins 2 & 3 |
| | 4.13MHz | | closed |
|---+---------------------------+---------------+------------|
| » | 8 bit memory I/O select 4 | W4 | pins 1 & 2 |
| | wait states | | closed |
|---+---------------------------+---------------+------------|
| | 8 bit memory I/O select 5 | W4 | pins 2 & 3 |
| | wait states | | closed |
|---+---------------------------+---------------+------------|
| » | 16 bit memory I/O select | W5 | pins 1 & 2 |
| | 1 wait state | | closed |
|---+---------------------------+---------------+------------|
| | 16 bit memory I/O select | W5 | pins 2 & 3 |
| | 2 wait states | | closed |
|---+---------------------------+---------------+------------|
| » | Monitor type select | W7 | pins 1 & 2 |
| | monochrome | | closed |
|---+---------------------------+---------------+------------|
| | Monitor type select color | W7 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| 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 | NONE | NONE |
| | | 9 | | |
|--------+----------------+------------+----------+----------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|--------+----------------+------------+----------+----------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|--------+----------------+------------+----------+----------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x | NONE |
| | | | 9 | |
|--------+----------------+------------+----------+----------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x | (4) 1M x |
| | | | 9 | 9 |
|------------------------------------------------------------|
| Note:Banks 2 & 3 are used when a 32-bit external memory |
| card is installed at S1. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER/SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/1 | SW1/2 | SW1/4 | W8 | W9 |
|---------+----------+----------+---------+---------+--------|
| 1MB | On | On | On | 2 & 3 | 2 & 3 |
|---------+----------+----------+---------+---------+--------|
| 2MB | On | Off | Off | 2 & 3 | 2 & 3 |
|---------+----------+----------+---------+---------+--------|
| 4MB | Off | Off | On | 1 & 2 | 1 & 2 |
|---------+----------+----------+---------+---------+--------|
| 8MB | On | Off | Off | 1 & 2 | 1 & 2 |
|---------+----------+----------+---------+---------+--------|
| 12MB | Off | On | Off | 1 & 2 | 1 & 2 |
|---------+----------+----------+---------+---------+--------|
| 16MB | On | On | Off | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 64KB | (10) 16K x 4 | (1) 16K x 1 |
|------------------+--------------------+--------------------|
| 256KB | (10) 64K x 4 | (1) 64K x 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | W2 | W3 |
|------------------+--------------------+--------------------|
| 64KB | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+