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# DATAEXPERT CORPORATION
EXP4045
Processor CX486M6/80486SX/CX486M7/AM486DX/80486DX/SL80486DX/AM486DX2/
80486DX2/SL80486DX2/80486DX4/P24D/Pentium Overdrive
Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. 128MB
Onboard
DRAM
Cache 128/256/512KB
BIOS Award
Dimensions 249mm x 218mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Power LED & | J1 | Turbo LED | J5 |
| keylock | | | |
|---------------+----------+----------------------+----------|
| Speaker | J2 | External battery | JP40 |
|---------------+----------+----------------------+----------|
| Reset switch | J3 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
|---------------+----------+----------------------+----------|
| Turbo switch | J4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|---------------------------------------+---------+----------|
| » | Factory configured - do not alter | JP5 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP10 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP11 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP12 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP13 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP14 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP15 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP35 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP37 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JP38 | N/A |
|---+-----------------------------------+---------+----------|
| » | Monitor type select color | JP39 | Closed |
|---+-----------------------------------+---------+----------|
| | Monitor type select monochrome | JP39 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP1 | JP2 | JP3 | JP4 |
|-------+-----------------+--------+------------+------------|
| 128KB | Open | Open | pins 2 & 3 | pins 1 & 2 |
| | | | closed | closed |
|-------+-----------------+--------+------------+------------|
| 256KB | pins 1 & 2 | Open | pins 2 & 3 | pins 2 & 3 |
| | closed | | closed | closed |
|-------+-----------------+--------+------------+------------|
| 512KB | pins 2 & 3 | Closed | pins 1 & 2 | pins 2 & 3 |
| | closed | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP6 | JP16 | JP17 | JP19 | JP20 |
|------------+-------+-------------+--------+-------+--------|
| CX486M6 | 2 & 3 | 2 & 3, 4 & | Open | 2 & 3 | Closed |
| | | 5 | | | |
|------------+-------+-------------+--------+-------+--------|
| 80486SX | 1 & 2 | 1 & 2 | Open | 1 & 2 | Open |
|------------+-------+-------------+--------+-------+--------|
| CX486M7 | 2 & 3 | 2 & 3, 4 & | Closed | 2 & 3 | Closed |
| | | 5 | | | |
|------------+-------+-------------+--------+-------+--------|
| AM486DX | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Open |
|------------+-------+-------------+--------+-------+--------|
| 80486DX | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Open |
|------------+-------+-------------+--------+-------+--------|
| SL80486DX | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Closed |
|------------+-------+-------------+--------+-------+--------|
| AM486DX2 | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Open |
|------------+-------+-------------+--------+-------+--------|
| 80486DX2 | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Open |
|------------+-------+-------------+--------+-------+--------|
| SL80486DX2 | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Closed |
|------------+-------+-------------+--------+-------+--------|
| 80486DX4 | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Closed |
|------------+-------+-------------+--------+-------+--------|
| P24D | 1 & 2 | 1 & 2, 3 & | Closed | 1 & 2 | Closed |
| | | 4 | | | |
|------------+-------+-------------+--------+-------+--------|
| P24T | 1 & 2 | 1 & 2 | Closed | 1 & 2 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP21 | JP22 | JP23 | JP24 | JP25 |
|------------+-----------+--------+-------+-------+----------|
| CX486M6 | 2 & 3, 4 | Closed | Open | Open | 2 & 3, 4 |
| | & 5 | | | | & 5 |
|------------+-----------+--------+-------+-------+----------|
| 80486SX | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| CX486M7 | 2 & 3, 4 | Closed | Open | Open | 2 & 3, 4 |
| | & 5 | | | | & 5 |
|------------+-----------+--------+-------+-------+----------|
| AM486DX | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| 80486DX | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| SL80486DX | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| AM486DX2 | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| 80486DX2 | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| SL80486DX2 | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| 80486DX4 | Open | Closed | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| P24D | Open | Open | 1 & 2 | 1 & 2 | 1 & 2, 3 |
| | | | | | & 4 |
|------------+-----------+--------+-------+-------+----------|
| P24T | Open | Open | Open | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP26 | JP27 | JP28 | JP29 | JP30 |
|-------------+----------+--------+--------+--------+--------|
| CX486M6 | Open | Open | 2 & 3 | Open | Open |
|-------------+----------+--------+--------+--------+--------|
| 80486SX | Open | Open | 2 & 3 | Open | Open |
|-------------+----------+--------+--------+--------+--------|
| CX486M7 | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| AM486DX | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| 80486DX | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| SL80486DX | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| AM486DX2 | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| 80486DX2 | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| SL80486DX2 | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| 80486DX4 | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| P24D | Closed | Open | 1 & 2 | Closed | Closed |
|-------------+----------+--------+--------+--------+--------|
| P24T | Closed | 1 & 2 | 1 & 2 | Closed | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP31 | JP32 | JP34 | JP36 |
|------------+----------+------------+-----------+-----------|
| CX486M6 | Open | Open | Closed | Closed |
|------------+----------+------------+-----------+-----------|
| 80486SX | Open | Open | Open | Open |
|------------+----------+------------+-----------+-----------|
| CX486M7 | Open | Open | Closed | Closed |
|------------+----------+------------+-----------+-----------|
| AM486DX | Open | Open | Open | Open |
|------------+----------+------------+-----------+-----------|
| 80486DX | Open | Open | Open | Open |
|------------+----------+------------+-----------+-----------|
| SL80486DX | Open | Open | Open | Closed |
|------------+----------+------------+-----------+-----------|
| AM486DX2 | Open | Open | Open | Open |
|------------+----------+------------+-----------+-----------|
| 80486DX2 | Open | Open | Open | Open |
|------------+----------+------------+-----------+-----------|
| SL80486DX2 | Open | Open | Open | Closed |
|------------+----------+------------+-----------+-----------|
| 80486DX4 | Open | Closed | Open | Closed |
|------------+----------+------------+-----------+-----------|
| P24D | Open | Closed | Open | Closed |
|------------+----------+------------+-----------+-----------|
| P24T | Open | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP7 | JP8 | JP9 |
|---------------+--------------+--------------+--------------|
| 25MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 75iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 100iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (80486DX4 ONLY) |
|------------------------------------------------------------|
| Speed | JP16 |
|----------------------------+-------------------------------|
| 2x | pins 7 & 8 closed |
|----------------------------+-------------------------------|
| 2.5x | pins 8 & 9 closed |
|----------------------------+-------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP18 | JP33 |
|-------------------+--------------------+-------------------|
| 3.3v | Open | Open |
|-------------------+--------------------+-------------------|
| 5v | Closed | Closed |
+------------------------------------------------------------+