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# LION COMPUTERS, INC.
NICE PLUS 486 DX/SX-50
Processor 80486SX/80487SX/80486DX
Processor Speed 16/20/25/33/50MHz
Chip Set ETEQ
Max. Onboard DRAM 32MB
Cache 64/256KB
BIOS AMI/MR/Phoenix
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card slot
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+----------+-----------------------+----------|
| Turbo LED | JP0 | Power LED & keylock | JP3 |
|--------------+----------+-----------------------+----------|
| Turbo switch | JP0A | External battery | JP21 |
|--------------+----------+-----------------------+----------|
| Reset switch | JP1 | 32-bit external | S1 |
| | | memory card | |
|--------------+----------+-----------------------+----------|
| Speaker | JP2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------------+--------+----------|
| » | NPU wait states select 0 | JP16 | Open |
|---+------------------------------------+--------+----------|
| | NPU wait state select 1 | JP16 | Closed |
|---+------------------------------------+--------+----------|
| » | CMOS memory normal operation | JP17 | Open |
|---+------------------------------------+--------+----------|
| | CMOS memory clear | JP17 | Closed |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP18 | Closed |
|---+------------------------------------+--------+----------|
| » | Monitor type select color | JP20 | Closed |
|---+------------------------------------+--------+----------|
| | Monitor type select monochrome | JP20 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 17MB | (4) 256K x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG | Location |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | (1) 8K x 8 | U205 |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | (2) 16K x 4 | U501 & U502 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | (2) 16K x 4 | U501 & U502 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP10 | JP11 | JP12 | JP13 | JP14 |
|----------+----------+----------+---------+--------+--------|
| 64KB | Open | Open | Open | 2 & 3 | 2 & 3 |
|----------+----------+----------+---------+--------+--------|
| 256KB | Closed | Closed | Closed | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP5 | JP6 | JP8 | JP9 |
|---------+--------+--------+-------------------+------------|
| 80486SX | Open | Open | pins 1 & 2 closed | Open |
|---------+--------+--------+-------------------+------------|
| 80487SX | Closed | Closed | pins 2 & 3 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 80486DX | Open | Closed | pins 2 & 3 closed | pins 2 & 3 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP0B | JP0C | JP4 | JP7 |
|-------+-----------------+------------+--------+------------|
| 16MHz | pins 1 & 2 | pins 1 & 2 | Closed | pins 1 & 2 |
| | closed | closed | | closed |
|-------+-----------------+------------+--------+------------|
| 20MHz | pins 1 & 2 | pins 1 & 2 | Closed | pins 1 & 2 |
| | closed | closed | | closed |
|-------+-----------------+------------+--------+------------|
| 25MHz | pins 2 & 3 | pins 1 & 2 | Closed | pins 1 & 2 |
| | closed | closed | | closed |
|-------+-----------------+------------+--------+------------|
| 33MHz | pins 2 & 3 | pins 1 & 2 | Open | pins 1 & 2 |
| | closed | closed | | closed |
|-------+-----------------+------------+--------+------------|
| 50MHz | pins 2 & 3 | pins 2 & 3 | Open | pins 2 & 4 |
| | closed | closed | | closed |
+------------------------------------------------------------+