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# EPSON, INC.
PROGRESSION 745-MA
Processor 80486SX/80487SX/80486DX/ODP487SX/80486DX2
Processor Speed 25/33/66iMHz (depending on CPU card
installed)
Chip Set UMC
Max. Onboard DRAM 128MB
SRAM Cache None (system uses DRAM as virtual cache)
BIOS Epson/Phoenix
Dimensions 218mm x 330mm
I/O Options 32-bit CPU card, floppy drive interface, IDE
interface, parallel port, PS/2 keyboard
connector, PS/2 mouse port, serial port,
VGA daughterboard, VGA feature connector
NPU Options 4167(on some versions of the CPU card)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+-------------------+-----------|
| External | BATT1 | IDE interface LED | CN10 |
| battery | | | |
|-----------------+----------+-------------------+-----------|
| PS/2 mouse port | CN1 | Floppy drive | CN11 |
| | | interface | |
|-----------------+----------+-------------------+-----------|
| PS/2 keyboard | CN2 | IDE interface | CN12 |
| connector | | | |
|-----------------+----------+-------------------+-----------|
| Serial port | CN3 | Power/Turbo LED | CN13 |
|-----------------+----------+-------------------+-----------|
| Parallel port | CN4 | Speaker | CN15 |
|-----------------+----------+-------------------+-----------|
| Chassis fan | CN5 | VGA daughterboard | CN23-CN26 |
| power | | | |
|-----------------+----------+-------------------+-----------|
| 32-bit CPU card | CN9 | VGA feature | JP8 |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-------------------------------------+---------+------------|
| » | Factory configured - do not | JP1 | pins 1 & 2 |
| | alter | | closed |
|----+--------------------------------+---------+------------|
| » | Factory configured - do not | JP2 | pins 1 & 2 |
| | alter | | closed |
|----+--------------------------------+---------+------------|
| » | Monitor type select color | JP5 | pins 1 & 2 |
| | | | closed |
|----+--------------------------------+---------+------------|
| | Monitor type select monochrome | JP5 | pins 2 & 3 |
| | | | closed |
|----+--------------------------------+---------+------------|
| » | System password enabled | JP6 | pins 2 & 3 |
| | | | closed |
|----+--------------------------------+---------+------------|
| | System password disabled | JP6 | pins 1 & 2 |
| | | | closed |
|----+--------------------------------+---------+------------|
| » | Onboard video enabled | JP7 | pins 1 & 2 |
| | | | closed |
|----+--------------------------------+---------+------------|
| | Onboard video disabled | JP7 | pins 2 & 3 |
| | | | closed |
|----+--------------------------------+---------+------------|
| » | Factory configured - do not | JP9 | pins 1 & 2 |
| | alter | | closed |
|------------------------------------------------------------|
| Note: JP9 is not present on some revisions. The location |
| of JP9 is unknown. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PS/2 MOUSE CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | JP3 | JP4 |
|------------------+--------------------+--------------------|
| » | Enabled | pins 1 & 2 closed | pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (1) 256K x 36 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (1) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (1) 1M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (1) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 17MB | (1) 4M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (1) 16M x 36 | NONE |
|------------------+--------------------+--------------------|
| 65MB | (1) 16M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 68MB | (1) 16M x 36 | (1) 4M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (1) 16M x 36 | (1) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (1) 16M x 36 | (1) 16M x 36 |
+------------------------------------------------------------+
Processor 80486SX/80487SX/ODP486SX
Processor Speed 25MHz
NPU Options None
IMG IMG 2
+------------------------------------------------------------+
| CPU CONFIGURATION JUMPERS |
|------------------------------------------------------------|
| Type | W1 |
|-----------------------------+------------------------------|
| » | 80486SX PQFP | pins 1 & 2 closed |
|---+-------------------------+------------------------------|
| | 80487SX PGA | pins 1 & 2 closed |
|---+-------------------------+------------------------------|
| | ODP486SX | pins 1 & 2 closed |
+------------------------------------------------------------+
Processor 80486DX/ODP486DX
Processor Speed 33MHz
NPU Options 4167
IMG IMG 3
+------------------------------------------------------------+
| CPU CONFIGURATION JUMPERS |
|------------------------------------------------------------|
| Type | W1 | W2 | W3 |
|------------------+---------------+------------+------------|
| » | 80486DX PQFP | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | | closed | closed | closed |
|---+--------------+---------------+------------+------------|
| | ODP486DX PGA | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed | closed |
+------------------------------------------------------------+
Processor 80486DX2
Processor Speed 33/66(internal)MHz
NPU Options 4167
IMG IMG 4