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# UNIDENTIFIED
286 TURBO
Processor 80286
Processor Speed 10/12MHz
Chip Set VLSI
Max. Onboard DRAM 4MB
Cache None
BIOS AMI/Award/Phoenix
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Turbo switch | C1 | Power LED & keylock | C4 |
|----------------+----------+---------------------+----------|
| Turbo LED | C2 | Speaker | C5 |
|----------------+----------+---------------------+----------|
| Reset switch | C3 | External battery | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Location |
|--------------------------------------+--------+------------|
| » | BIOS type select 27256 | JP1 | pins 1& 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select 27512 | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Factory configured - do not | JP5 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| | CPU slow speed select 8MHz | JP6 | Open |
|---+----------------------------------+--------+------------|
| | CPU slow speed select 6MHz | JP6 | Closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP7 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP7 | Open |
|---+----------------------------------+--------+------------|
| » | DRAM speed select 0 wait states | JP8 | Open |
|---+----------------------------------+--------+------------|
| | DRAM speed select 1 wait state | JP8 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 512KB | (18) 41256 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 512KB | NONE | NONE | (2) 256K x | NONE |
| | | | 9 | |
|-------+-------------+------------+------------+------------|
| 640KB | (18) 41256 | (18) 4164 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 640KB | NONE | NONE | (2) 256K x | (2) 64K x |
| | | | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 1MB | (18) 41256 | (18) 41256 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 1MB | NONE | NONE | (2) 256K x | (2) 256K x |
| | | | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 2MB | (18) 411000 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 2MB | NONE | NONE | (2) 1M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 4MB | (18) 411000 | (18) | NONE | NONE |
| | | 411000 | | |
|-------+-------------+------------+------------+------------|
| 4MB | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP2 | JP3 | JP4 |
|--------------+---------------+--------------+--------------|
| 512KB | Closed | Closed | Closed |
|--------------+---------------+--------------+--------------|
| 512KB | Closed | Closed | Closed |
|--------------+---------------+--------------+--------------|
| 640KB | Closed | Closed | Open |
|--------------+---------------+--------------+--------------|
| 640KB | Closed | Closed | Open |
|--------------+---------------+--------------+--------------|
| 1MB | Closed | Open | Closed |
|--------------+---------------+--------------+--------------|
| 1MB | Closed | Open | Closed |
|--------------+---------------+--------------+--------------|
| 2MB | Closed | Open | Open |
|--------------+---------------+--------------+--------------|
| 2MB | Closed | Open | Open |
|--------------+---------------+--------------+--------------|
| 4MB | Open | Closed | Closed |
|--------------+---------------+--------------+--------------|
| 4MB | Open | Closed | Closed |
+------------------------------------------------------------+