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# VTECH INDUSTRIES, INC.
PLATINUM PCI SERIES 486
Processor 80486SX/80486DX/80486DX2/Pentium Overdrive
Processor 25/33/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 32MB
DRAM
Cache 128/256/512KB
BIOS Unidentified
Dimensions 355mm x 304mm
I/O Options 32-bit PCI slots (2), floppy drive interface,
green PC connector, IDE interface, SCSI
connector, parallel port, PS/2 mouse port, serial
ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Floppy drive | CN1 | CPU power | J15 |
| interface | | connector | |
|------------------+----------+-------------------+----------|
| IDE interface | CN2 | Speaker | J16 |
|------------------+----------+-------------------+----------|
| Parallel port | CN3 | +3.3v power | J17 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Serial port 1 | CN4 | Green PC | J18 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Serial port 2 | CN5 | Analog speaker | J19 |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | CN6 | Power off control | J20 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Mezzanine board | CN7 | Front panel | J23 |
| connector | | connector | |
|------------------+----------+-------------------+----------|
| SCSI interface | CN8 | 32-bit PCI slots | SL1 & |
| | | | SL2 |
|------------------+----------+-------------------+----------|
| +5.5v power | CN9 | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Switch | Position |
|--------------------------------------+---------+-----------|
| » | TAG chip size select 8K/32K x 8 | S1/3 | On |
|---+----------------------------------+---------+-----------|
| | TAG chip size select 8K/32K x 9 | S1/3 | Off |
|---+----------------------------------+---------+-----------|
| » | Cache enabled | S1/4 | On |
|---+----------------------------------+---------+-----------|
| | Cache disabled | S1/4 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 2MB | (2) 256K x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (2) 256K x 36 | NONE | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (2) 256K x 36 | NONE | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (2) 256K x 36 | (2) 256K x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (2) 256K x 36 | (2) 256K x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 10MB | (2) 256K x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 10MB | (2) 256K x 36 | NONE | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | (2) 1M x 36 | NONE | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (2) 256K x 36 | (2) 256K x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (2) 256K x 36 | (2) 1M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (2) 1M x 36 | NONE | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 14MB | (2) 256K x 36 | (2) 1M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | NONE | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (2) 256K x 36 | NONE | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (2) 256K x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (2) 1M x 36 | (2) 1M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (2) 256K x 36 | (2) 256K x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (2) 1M x 36 | (2) 1M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | NONE | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 26MB | (2) 256K x 36 | (2) 1M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 1M x 36 | (2) 1M x 36 | (2) 2M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 9 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 9 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 9 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 9 |
|------------------------------------------------------------|
| Note: x 8 or x 9 cache and TAG chips may be used. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | S2/1 | S2/2 | S2/3 | S2/4 | S3/1 | S3/2 |S3/3 |S3/4 |
|------+------+------+------+------+------+------+-----+-----|
|128KB | On | Off | Off | On | Off | Off | Off | Off |
|------+------+------+------+------+------+------+-----+-----|
|128KB | On | Off | Off | Off | On | Off | Off | Off |
|------+------+------+------+------+------+------+-----+-----|
|128KB | On | Off | Off | Off | Off | Off | Off | Off |
|------+------+------+------+------+------+------+-----+-----|
|128KB | On | Off | Off | Off | On | Off | Off | Off |
|------+------+------+------+------+------+------+-----+-----|
|256KB | Off | On | On | Off | Off | Off | Off | Off |
|------+------+------+------+------+------+------+-----+-----|
|256KB | Off | On | On | Off | On | Off | Off | Off |
|------+------+------+------+------+------+------+-----+-----|
|512KB | Off | On | On | Off | Off | On | On | On |
|------+------+------+------+------+------+------+-----+-----|
|512KB | Off | On | On | Off | On | Off | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | S1/1 | S1/2 |
|--------------------+-------------------+-------------------|
| 128KB | On | Off |
|--------------------+-------------------+-------------------|
| 256KB | Off | On |
|--------------------+-------------------+-------------------|
| 512KB | On | On |
+------------------------------------------------------------+