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# NIC TECHNOLOGY, INC.
UNH433L
Processor 80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed 20/25/33/40/50(internal)/50/66(internal)
Chip Set UNI
Max. Onboard DRAM 32MB
SRAM Cache 32/64/128/256KB
BIOS AMI
Dimensions 250mm x 220mm
I/O Options 32-bit proprietary local bus
NPU Options 80387SX
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| External battery | BAT | Speaker | SPK |
|----------------------+----------+---------------+----------|
| Power LED & keylock | KEYL | Turbo LED | TLED |
|----------------------+----------+---------------+----------|
| Reset switch | RSW | Turbo switch | TSW |
|----------------------+----------+---------------+----------|
| 32-bit local bus | S1 | | |
| card | | | |
|------------------------------------------------------------|
| Note:The 32-bit local bus slot cannot be used if the CPU |
| is a 386DX or a 486DX-50MHz. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+---------+-----------|
| ยป | Monitor type select color | JP19 | open |
|---+----------------------------------+---------+-----------|
| | Monitor type select monochrome | JP19 | 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 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP10 | JP11 | JP14 | JP15 | JP16 | JP18 | JP20 |
|-------+-------+--------+-------+------+------+------+------|
| 80486 | pins | closed | pins | pins | pins | pins | pins |
| | 1 & 2 | | 1 & 2 | 1 & | 1 & | 3 & | 2 & |
| | | | | 2 | 2 | 4 | 3 |
|-------+-------+--------+-------+------+------+------+------|
| 80386 | pins | open | pins | pins | pins | pins | pins |
| | 2 & 3 | | 2 & 3 | 2 & | 2 & | 1 & | 1 & |
| | | | | 3 | 3 | 2 | 2 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 486CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP1 | JP2 |
|----------+-------------------+-----------------------------|
| 80486DX2 | pins 1 & 2 closed | pins 1 & 2 and 3 & 4 closed |
|----------+-------------------+-----------------------------|
| 80486DX | pins 1 & 2 closed | pins 1 & 2 and 3 & 4 closed |
|----------+-------------------+-----------------------------|
| 80487SX | pins 2 & 3 closed | pins 1 & 2 and 3 & 4 closed |
|----------+-------------------+-----------------------------|
| 80486SX | open | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache SRAM | Location | TAG |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | Bank 0 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | Banks 0 & 1 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | Bank 0 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | Banks 0 & 1 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
|Size | JP3 | JP4 | JP5 | JP6 | JP7 | JP8 | JP9 |JP17 |
|-----+------+------+------+------+------+------+------+-----|
|32KB | open | open | open |pins 2|pins 2|pins 1|pins 2|pins |
| | | | | & 3 | & 3 | & 2 | & 3 |2 & 3|
|-----+------+------+------+------+------+------+------+-----|
|64KB | open | open |closed|pins 1|pins 2|pins 2|pins 2|pins |
| | | | | & 2 | & 3 | & 3 | & 3 |1 & 2|
|-----+------+------+------+------+------+------+------+-----|
|128KB| open |closed|closed|pins 2|pins 1|pins 2|pins 2|pins |
| | | | | & 3 | & 2 | & 3 | & 3 | 1&2 |
| | | | | | | | | and |
| | | | | | | | | 3&4 |
|-----+------+------+------+------+------+------+------+-----|
|256KB|closed|closed|closed|pins 2|pins 2|pins 2|pins 1|pins |
| | | | | & 3 | & 3 | & 3 | & 2 | 1&2 |
| | | | | | | | | and |
| | | | | | | | | 4&5 |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+