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# JOINDATA SYSTEMS, INC.
G386K
Processor 80386DX
Processor Speed 33/40MHz
Chip Set C & T Peak-DM
Max. Onboard DRAM 64MB
Cache 32/64/128/256KB
BIOS AMI
Dimensions 339mm x 228mm
I/O Options None
NPU Options 80387/3167
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Reset switch | J9 | Speaker | J12 |
|----------------+----------+---------------------+----------|
| Turbo LED | J10 | Power LED & Keylock | J13 |
|----------------+----------+---------------------+----------|
| Turbo switch | J11 | External battery | J14 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+---------+-----------|
| ยป | Monitor type select color | JP15 | Closed |
|---+----------------------------------+---------+-----------|
| | Monitor type select monochrome | JP15 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+--------------+------------+------------+------------|
| 1MB | (4) 256K x 9 | NONE | NONE | NONE |
|------+--------------+------------+------------+------------|
| 2MB | (4) 256K x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+--------------+------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+--------------+------------+------------+------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
|------+--------------+------------+------------+------------|
| 6MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
|------+--------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+--------------+------------+------------+------------|
| 10MB | (4) 256K x 9 | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
| | | 9 | | |
|------+--------------+------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+--------------+------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|------+--------------+------------+------------+------------|
| 17MB | (4) 4M x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+--------------+------------+------------+------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 | NONE | NONE |
|------+--------------+------------+------------+------------|
| 24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
|------+--------------+------------+------------+------------|
| 40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|------+--------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | TAG | Bank 0 | Bank 1 | TAG | TAG |
| | | | | (U34/U37) | (U40) |
|-------+--------+----------+---------+------------+---------|
| 32KB | 8-bit | (4) 8K x | NONE | (2) 16K x | NONE |
| | | 8 | | 4 | |
|-------+--------+----------+---------+------------+---------|
| 32KB | 10-bit | (4) 8K x | NONE | (2) 16K x | (1) 16K |
| | | 8 | | 4 | x 4 |
|-------+--------+----------+---------+------------+---------|
| 64KB | 8-bit | (4) 8K x | (4) 8K | (2) 16K x | NONE |
| | | 8 | x 8 | 4 | |
|-------+--------+----------+---------+------------+---------|
| 64KB | 10-bit | (4) 8K x | (4) 8K | (2) 16K x | (1) 16K |
| | | 8 | x 8 | 4 | x 4 |
|-------+--------+----------+---------+------------+---------|
| 128KB | 8-bit | (4) 32K | NONE | (2) 64K x | NONE |
| | | x 8 | | 4 | |
|-------+--------+----------+---------+------------+---------|
| 128KB | 10-bit | (4) 32K | NONE | (2) 64K x | (1) 64K |
| | | x 8 | | 4 | x 4 |
|-------+--------+----------+---------+------------+---------|
| 256KB | 8-bit | (4) 32K | (4) 32K | (2) 64K x | NONE |
| | | x 8 | x 8 | 4 | |
|-------+--------+----------+---------+------------+---------|
| 256KB | 10-bit | (4) 32K | (4) 32K | (2) 64K x | (1) 64K |
| | | x 8 | x 8 | 4 | x 4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J17 | J18 | J19 | J20 | J21 | J22 | J23 |
|-------+------+------+------+------+------+--------+--------|
| 32KB | 1 & | 1 & | 2 & | 1 & | 2 & | Open | Open |
| | 2 | 2 | 3 | 2 | 3 | | |
|-------+------+------+------+------+------+--------+--------|
| 64KB | 1 & | 1 & | 2 & | 1 & | 1 & | Open | Closed |
| | 2 | 2 | 3 | 2 | 2 | | |
|-------+------+------+------+------+------+--------+--------|
| 128KB | 2 & | 2 & | 1 & | 2 & | 2 & | Open | Open |
| | 3 | 3 | 2 | 3 | 3 | | |
|-------+------+------+------+------+------+--------+--------|
| 256KB | 2 & | 2 & | 1 & | 2 & | 1 & | Closed | Open |
| | 3 | 3 | 2 | 3 | 2 | | |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE TAG SIZE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | Tag | JP16 | JP17 | JP18 | JP19 | JP20 | JP21 |
|----------+-------+------+------+------+------+------+------|
|32 - 256KB|10-bit |2 & 3 |1 & 2 |1 & 2 |Closed| Open |Closed|
|----------+-------+------+------+------+------+------+------|
| 32KB | 8-bit | Open |2 & 3 | Open |Closed| Open |Closed|
|----------+-------+------+------+------+------+------+------|
| 64KB | 8-bit | Open | Open |1 & 2 |Closed| Open |Closed|
|----------+-------+------+------+------+------+------+------|
| 128KB | 8-bit |1 & 2 | Open |1 & 2 | Open | Open |Closed|
|----------+-------+------+------+------+------+------+------|
| 256KB | 8-bit |1 & 2 |1 & 2 |1 & 2 | Open |Closed| Open |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+