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# ICL
ERGOPRO E4
Processor 80486SX/80487SX/80486DX/80486DX2/ODP486SX/Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set OPTI
Max. Onboard 256MB
DRAM
Max. Cache 64KB/128KB/256KB/1MB
BIOS ICL
Dimensions 330mm x 218mm
I/O Options CPU slot, 32-bit VESA local bus slots (2), floppy
drive interface, IDE interface, SCSI interface
(optional), parallel port, PS/2 mouse port,
serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| IDE interface | J1 | Hard drive LED | J7 |
|------------------+----------+-------------------+----------|
| Floppy drive | J2 | CPU fan | J8 |
| interface | | | |
|------------------+----------+-------------------+----------|
| Parallel port | J3 | Power LED | J9 |
|------------------+----------+-------------------+----------|
| Serial port 1 | J4 | External speaker | J10 |
|------------------+----------+-------------------+----------|
| Serial port 2 | J5 | 32-bit VESA local | SL9 & |
| | | bus slots | SL10 |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | J6 | CPU riser slot | SL11 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| | On-board SCSI disabled | JP1 | Closed |
|---+----------------------------------+--------+------------|
| | On-board SCSI enabled | JP1 | Open |
|---+----------------------------------+--------+------------|
| | Dallas CMOS chip installed | JP2/A | Closed |
|---+----------------------------------+--------+------------|
| | Benchmark CMOS chip installed | JP2/B | Closed |
|---+----------------------------------+--------+------------|
| | 1 local bus wait state | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | 0 local bus wait states | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Factory configured - do not | JP3 | pins 5 & 6 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| | On board speaker enabled | JP4 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | External speaker enabled | JP4 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Housing type A | JP5 | Closed |
|---+----------------------------------+--------+------------|
| | Housing type B | JP5 | Open |
|---+----------------------------------+--------+------------|
| | System setup unlocked | JP6 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | System setup locked | JP6 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Reset button enabled | JP7 | Closed |
|---+----------------------------------+--------+------------|
| | Reset button disabled | JP7 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 16M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 84MB | (1) 1M x 36 | (1) 4M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 84MB | (1) 4M x 36 | (1) 16M x | (1) 1M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 88MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 88MB | (1) 4M x 36 | (1) 16M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 36 | (1) 4M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 36 | (1) 16M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 4M x 36 | (1) 16M x | (1) 4M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 4M x 36 | (1) 16M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 132MB | (1) 16M x | (1) 16M x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 136MB | (1) 1M x 36 | (1) 1M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 136MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 144MB | (1) 4M x 36 | (1) 16M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 144MB | (1) 16M x | (1) 16M x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 148MB | (1) 1M x 36 | (1) 4M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 148MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 160MB | (1) 4M x 36 | (1) 4M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 160MB | (1) 4M x 36 | (1) 16M x | (1) 4M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 160MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 192MB | (1) 16M x | (1) 16M x | (1) 16M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 208MB | (1) 4M x 36 | (1) 16M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 208MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
+------------------------------------------------------------+
IMG IMG 2
E4 CPU RISER CARD
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP1 |
|----------------------------+-------------------------------|
| 25MHz | Open |
|----------------------------+-------------------------------|
| 33MHz | pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 40MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 50MHz | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 50iMHz | Open |
|----------------------------+-------------------------------|
| 66iMHz | pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYSTEM SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP4 |
|----------------------------+-------------------------------|
| 25MHz | pins 1 & 2, 4 & 5 closed |
|----------------------------+-------------------------------|
| 33MHz | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| 40MHz | pins 2 & 3, 4 & 5 closed |
|----------------------------+-------------------------------|
| 50MHz | pins 2 & 3, 5 & 6 closed |
|----------------------------+-------------------------------|
| 50i MHz | pins 1 & 2, 4 & 5 closed |
|----------------------------+-------------------------------|
| 66i MHz | pins 1 & 2, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP9 | JP15 | JP16 |
|-------+-----------+----------+--------------+--------------|
| 64KB | Open | Open | unidentified | unidentified |
|-------+-----------+----------+--------------+--------------|
| 128KB | pins 1 & | pins 3 & | unidentified | unidentified |
| | 2 closed | 4 closed | | |
|-------+-----------+----------+--------------+--------------|
| 256KB | pins 1 & | pins 3 & | pins 2 & 3 | pins 2 & 3 |
| | 2, 3 & 4 | 4, 5 & 6 | closed | closed |
| | closed | closed | | |
|-------+-----------+----------+--------------+--------------|
| 1MB | All | All | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|---------+----------------+----------------+----------------|
| 64KB | unidentified | unidentified | unidentified |
|---------+----------------+----------------+----------------|
| 128KB | unidentified | unidentified | unidentified |
|---------+----------------+----------------+----------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | unidentified |
|---------+----------------+----------------+----------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | unidentified |
|------------------------------------------------------------|
| Note: The locations of Bank 0 and Bank 1 are unidentified. |
+------------------------------------------------------------+