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# FREE COMPUTER TECHNOLOGY, INC.
80486EISA (VERSION 1.0)
Processor 80486DX
Processor Speed 25/33MHz
Chip Set Intel
Max. Onboard DRAM 64MB
SRAM Cache 64/256KB
BIOS Award
Dimensions 355.6mm x 304.8mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Reset switch | W1 | Power LED & keylock | W5 |
|----------------+----------+---------------------+----------|
| Turbo LED | W2 | Speaker | W6 |
|----------------+----------+---------------------+----------|
| Turbo switch | W3 | External battery | W10 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------+-----------+-------------------|
| » | | W8 | pins 1 & 2 closed |
| | | | |
| | Cache select 64KB | W9 | pins 1 & 2 closed |
| | | | |
| | | W11 | pins 1 & 2 closed |
|---+------------------------+-----------+-------------------|
| » | | W8 | pins 2 & 3 closed |
| | | | |
| | Cache select 256KB | W9 | pins 2 & 3 closed |
| | | | |
| | | W11 | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache SRAM |
|----------------------------+-------------------------------|
| 64KB | (8) 8K x 8 |
|----------------------------+-------------------------------|
| 256KB | (8) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
|Size|SW1/switch |SW1/switch|SW1/switch|SW1/switch|SW1/switch|
| | 1 | 2 | 3 | 4 | 5 |
|----+-----------+----------+----------+----------+----------|
|1MB | open | open | open | open | open |
|----+-----------+----------+----------+----------+----------|
|2MB | closed | open | open | open | open |
|----+-----------+----------+----------+----------+----------|
|3MB | open | closed | open | open | open |
|----+-----------+----------+----------+----------+----------|
|4MB | closed | closed | open | open | open |
|----+-----------+----------+----------+----------+----------|
|4MB | open | open | closed | open | open |
|----+-----------+----------+----------+----------+----------|
|5MB | open | open | closed | closed | open |
|----+-----------+----------+----------+----------+----------|
|6MB | open | closed | open | closed | open |
|----+-----------+----------+----------+----------+----------|
|7MB | closed | open | open | closed | open |
|----+-----------+----------+----------+----------+----------|
|8MB | closed | open | closed | open | open |
|----+-----------+----------+----------+----------+----------|
|9MB | open | closed | closed | closed | open |
|----+-----------+----------+----------+----------+----------|
|10MB| closed | closed | open | closed | open |
|----+-----------+----------+----------+----------+----------|
|12MB| open | closed | closed | open | open |
|----+-----------+----------+----------+----------+----------|
|13MB| closed | closed | closed | closed | open |
|----+-----------+----------+----------+----------+----------|
|16MB| closed | closed | closed | open | open |
|----+-----------+----------+----------+----------+----------|
|16MB| open | open | open | open | closed |
|----+-----------+----------+----------+----------+----------|
|32MB| open | open | closed | open | closed |
|----+-----------+----------+----------+----------+----------|
|48MB| open | open | open | closed | closed |
|----+-----------+----------+----------+----------+----------|
|64MB| open | open | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 1 | Bank 2 | Bank 3 | Bank 4 |
|------+--------------+------------+------------+------------|
| 1MB | (4) 256K x 9 | NONE | NONE | NONE |
|------+--------------+------------+------------+------------|
| 2MB | (4) 256K x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+--------------+------------+------------+------------|
| 3MB | (4) 256K x 9 | (4) 256K x | (4) 256K x | NONE |
| | | 9 | 9 | |
|------+--------------+------------+------------+------------|
| 4MB | (4) 256K x 9 | (4) 256K x | (4) 256K x | (4) 256K x |
| | | 9 | 9 | 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) 256K x | (4) 1M x 9 | NONE |
| | | 9 | | |
|------+--------------+------------+------------+------------|
| 7MB | (4) 256K x 9 | (4) 256K x | (4) 256K x | (4) 1M x 9 |
| | | 9 | 9 | |
|------+--------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+--------------+------------+------------+------------|
| 9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|------+--------------+------------+------------+------------|
| 10MB | (4) 256K x 9 | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
| | | 9 | | |
|------+--------------+------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|------+--------------+------------+------------+------------|
| 13MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+--------------+------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|------+--------------+------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+--------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|------+--------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|------+--------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+