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# £ 33MHz JOINDATA SYSTEMS, INC.
G486SVL
Processor 80486SX/80486DX
Processor Speed 20/25/33MHz
Chip Set Symphony
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 287mm x 218mm
I/O Options 32-bit VESA local bus slots (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+----------+-----------------------+----------|
| Reset switch | J9 | Power LED & keylock | J13 |
|--------------+----------+-----------------------+----------|
| Turbo LED | J10 | External battery | J14 |
|--------------+----------+-----------------------+----------|
| Turbo switch | J11 | 32-bit VESA local bus | S1 & S2 |
| | | slots | |
|--------------+----------+-----------------------+----------|
| Speaker | J12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------------+--------+----------|
| » | CMOS memory normal operation | JP3 | Open |
|---+------------------------------------+--------+----------|
| | CMOS memory clear | JP3 | Closed |
|---+------------------------------------+--------+----------|
| | Wait states select 0 | JP24 | Open |
|---+------------------------------------+--------+----------|
| | Wait state select 1 | JP24 | Closed |
|---+------------------------------------+--------+----------|
| | CPU speed select £ 33MHz | JP25 | Open |
|---+------------------------------------+--------+----------|
| | CPU speed select > 33MHz | JP25 | Closed |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP26 | Closed |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP27 | Closed |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP29 | Closed |
|---+------------------------------------+--------+----------|
| » | Monitor type select color | JP30 | Closed |
|---+------------------------------------+--------+----------|
| | Monitor type select monochrome | JP30 | 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 |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K 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 |
|------------------+--------------------+--------------------|
| 17MB | (4) 4M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 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 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
|Size | JP7 |JP8 |JP14 |JP15 |JP16|JP18|JP20|JP21|JP23| JP28 |
|-----+-----+----+-----+-----+----+----+----+----+----+------|
|64KB |Open |2 & |2 & 3|1 & 2|2 & |2 & |1 & |1 & |open| Open |
| | | 3 | | | 3 | 3 | 2 | 2 | | |
|-----+-----+----+-----+-----+----+----+----+----+----+------|
|128KB|2 & 3|1 & |1 & 2|2 & 3|2 & |2 & |2 & |2 & |2 & |Closed|
| | | 2 | | | 3 | 3 | 3 | 3 | 3 | |
|-----+-----+----+-----+-----+----+----+----+----+----+------|
|256KB|1 & 2|1 & |1 & 2|2 & 3|1 & |1 & |1 & |1 & |1 & | Open |
| | | 2 | | | 2 | 2 | 2 | 2 | 2 | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP5 | JP6 | JP11 |
|--------------+------------+-------------------+------------|
| 80486SX | Open | pins 1 & 2 closed | Open |
|--------------+------------+-------------------+------------|
| 80486DX | Closed | pins 2 & 3 closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP4 | JP9 |
|-------------------+-------------------+--------------------|
| iOSC/2 | Open | pins 2 & 3 closed |
|-------------------+-------------------+--------------------|
| iOSC/1 | Closed | pins 1 & 2 closed |
+------------------------------------------------------------+