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# SER
386CS
Processor 80386SX
Processor Speed 20/25MHz
Chip Set C & T
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | JP5 | Turbo LED | JP8 |
|------------------+----------+-------------------+----------|
| Reset switch | JP6 | Speaker | JP9 |
|------------------+----------+-------------------+----------|
| Turbo switch | JP7 | Power LED & | JP10 |
| | | keylock | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Monitor type select color | JP2 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | JP2 | Open |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP4 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP4 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 512KB | (2) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 1MB | (2) 256K x | (2) 256K x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 1.5MB | (2) 256K x | (2) 256K x | (2) 256K x | NONE |
| | 9 | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x |
| | 9 | 9 | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 1M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 2.5MB | (2) 256K x | (2) 1M x 9 | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 4.5MB | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 6.5MB | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
|-------+-------------+------------+------------+------------|
| 9MB | (2) 256K x | (2) 256K x | (2) 4M x 9 | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 10MB | (2) 1M x 9 | (2) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | JP3 |
|-----------------------+------------------------------------|
| 512KB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 1MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 1.5MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 2MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 2MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 2.5MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 3MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 4MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 4.5MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 5MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 6MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 6.5MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 8MB | pins 1 & 2 closed |
|-----------------------+------------------------------------|
| 9MB | * |
|-----------------------+------------------------------------|
| 10MB | * |
|-----------------------+------------------------------------|
| 16MB | pins 2 & 3 closed |
|------------------------------------------------------------|
| *Note:Pins 1 & 2 are closed when 256KB or 1MB SIMM's are |
| used; pins 2 & 3 are closed when |
| |
| 4MB SIMM's are used. 9MB and 10MB memory configurations |
| were available; however, |
| |
| we were unable to verify the correct settings. |
+------------------------------------------------------------+