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# ORCHID TECHNOLOGY
SUPERBOARD 486(DX2)
Processor 80486SX/80486DX/ODP486SX/80486DX2
Processor Speed 20/25/40/50(internal)/66(internal)MHz
Chip Set OPTI
Max. Onboard DRAM 32MB
Cache 64/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit proprietary video card slot
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------+----------+------------------------+----------|
| External | J10 | 32-bit proprietary | S1 |
| battery | | video card | |
|-------------+----------+------------------------+----------|
| Power LED & | J23 | Reset switch | SW1 |
| keylock | | | |
|-------------+----------+------------------------+----------|
| Speaker | J24 | Turbo switch | SW2 |
|-------------+----------+------------------------+----------|
| Turbo LED | JP12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP1 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP1 | Closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JPX | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JPY | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP13 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG (U34) | TAG (U33) |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | (1) 8K x 8 | (1) 64K x 1 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | (1) 32K x 8 | (1) 64K x 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8 | JP9 | JP10 | JP11 |
|-----------+------------+------------+----------+-----------|
| 64KB | Open | Open | Open | Open |
|-----------+------------+------------+----------+-----------|
| 256KB | Closed | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | OSC | JP4 | JP5 | JP6 | JP7 |
|--------------+----------+--------+--------+-------+--------|
| 80486SX-20 | 20MHz | 1 & 2 | Open | 2 & 3 | Open |
|--------------+----------+--------+--------+-------+--------|
| 80486SX-20 | 40MHz | 2 & 3 | Open | 2 & 3 | Open |
|--------------+----------+--------+--------+-------+--------|
| ODP486SX-50 | 25MHz | 1 & 2 | Open | 2 & 3 | Open |
|--------------+----------+--------+--------+-------+--------|
| ODP486SX-50 | 50MHz | 2 & 3 | Open | 2 & 3 | Open |
|--------------+----------+--------+--------+-------+--------|
| 80486DX-25 | 25MHz | 1 & 2 | 2 & 3 | 1 & 2 | Closed |
|--------------+----------+--------+--------+-------+--------|
| 80486DX2-50 | 50iMHz | 2 & 3 | 2 & 3 | 1 & 2 | Closed |
|--------------+----------+--------+--------+-------+--------|
| 80486DX-33 | 66MHz | 2 & 3 | 2 & 3 | 1 & 2 | Closed |
|--------------+----------+--------+--------+-------+--------|
| 80486DX2-50 | 50iMHz | 2 & 3 | 2 & 3 | 1 & 2 | Closed |
|--------------+----------+--------+--------+-------+--------|
| 80486DX2-66 | 66MHz | 2 & 3 | 2 & 3 | 1 & 2 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+