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# RINGO TECHNOLOGY, INC.
RT486SX/DX
Processor 80486SX/80486DX/80486DX2
Processor Speed 33/50/66(internal)MHz
Chip Set OPTI
Video Chip Set None
Maximum Onboard Memory 32MB
Maximum Video Memory None
Cache 256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J22 | Power LED & | P6 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Speaker | P5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Battery type select internal | J22 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Battery type select Vectra | J22 | Open |
| | battery | | |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | J22 | Pins 3 & 4 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Monitor type select color/EGA/VGA | JP12 | Closed |
|---+-----------------------------------+-------+------------|
| | Monitor type select monochrome | JP12 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 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 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: Board is factory installed with 256KB cache and |
| is not configurable. The location of the cache is |
| unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | J15 | JP2 | JP3 | JP4 | JP5 |
|--------------+----------+--------+--------+--------+-------|
| 80486SX-33 | Closed | Open | 1 & 2 | Open | 2 & 3 |
|--------------+----------+--------+--------+--------+-------|
| 80486DX-33 | Closed | 1 & 2 | 2 & 3 | Closed | 2 & 3 |
|--------------+----------+--------+--------+--------+-------|
| 80486DX-50 | Closed | 1 & 2 | 2 & 3 | Closed | 1 & 2 |
|--------------+----------+--------+--------+--------+-------|
| 80486DX2-66 | Closed | 1 & 2 | 2 & 3 | Closed | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP6 | JP7 | JP8 | JP9 | JP10 |
|--------------+----------+--------+-------+--------+--------|
| 80486SX-33 | Closed | 2 & 3 | Open | Open | Closed |
|--------------+----------+--------+-------+--------+--------|
| 80486DX-33 | Closed | 2 & 3 | Open | Closed | Closed |
|--------------+----------+--------+-------+--------+--------|
| 80486DX-50 | Closed | 2 & 3 | Open | Closed | Closed |
|--------------+----------+--------+-------+--------+--------|
| 80486DX2-66 | Closed | 2 & 3 | Open | Closed | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+