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# ABC COMPUTER COMPANY, LTD.
COMPACT 286 VER. 3.0
Processor 80286
Processor Speed 20MHz
Chip Set C & T
Max. Onboard DRAM 8MB
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Turbo LED | E3 | External battery | J17 |
|----------------+----------+---------------------+----------|
| Reset switch | E6 | Speaker | J19 |
|----------------+----------+---------------------+----------|
| MIPS counter | E8 | Power LED & keylock | J21 |
|----------------+----------+---------------------+----------|
| Speed LED | J15 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-------------------------------------+---------+------------|
| » | NPU speed select fast | E1 & E2 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | NPU speed select slow | E1 & E2 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | BIOS type select 27128 | E4 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | BIOS type select 27256 | E4 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | CMOS memory normal operation | E5 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | CMOS memory clear | E5 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | Reset enabled through hardware | E7 | pins 2 & 3 |
| | and keyboard | | closed |
|---+---------------------------------+---------+------------|
| | Reset enabled through hardware | E7 | pins 1 & 2 |
| | only | | closed |
|---+---------------------------------+---------+------------|
| » | Monitor type select monochrome | SW1 | Open |
|---+---------------------------------+---------+------------|
| | Monitor type select color | SW1 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|---------+-------------+------------+------------+----------|
| 512KB | (2) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|---------+-------------+------------+------------+----------|
| 640KB | (2) 256K x | (2) 64K x | NONE | NONE |
| | 9 | 9 | | |
|---------+-------------+------------+------------+----------|
| 1M x 9B | (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 | |
|---------+-------------+------------+------------+----------|
| 1.64MB | (2) 256K x | (2) 64K x | (2) 256K x | (2) 256K |
| | 9 | 9 | 9 | x 9 |
|---------+-------------+------------+------------+----------|
| 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K |
| | 9 | 9 | 9 | x 9 |
|---------+-------------+------------+------------+----------|
| 2MB | (2) 1M x 9 | NONE | NONE | NONE |
|---------+-------------+------------+------------+----------|
| 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 |
|---------+-------------+------------+------------+----------|
| 4.64MB | (2) 256K x | (2) 64K x | (2) 1M x 9 | (2) 1M x |
| | 9 | 9 | | 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 |
|---------+-------------+------------+------------+----------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x |
| | | | | 9 |
+------------------------------------------------------------+