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# DATAEXPERT CORPORATION/VISION TECHNOLOGIES
486WB CACHE/ESP486 (VER. 1)
Processor CX486M6/80486SX/CX486M7/AMD486DXL/AMD486DX/80486DX/CX486DX2/
AMD486DX2/80486DX2/80486DX4/Pentium Overdrive
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set OPTI
Max. 64MB
Onboard
DRAM
Cache 64/128/256KB
BIOS Award
Dimensions 230mm x 218mm
I/O 32-bit VESA local bus slots (3)
Options
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Power LED & | J1 | Turbo LED | JP2 |
| keylock | | | |
|------------------+----------+-------------------+----------|
| Speaker | J2 | Power saving | JP26 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Reset switch | J3 | Turbo switch | JP35 |
|------------------+----------+-------------------+----------|
| External battery | J4 | 32-bit VESA Local | SL1 - |
| | | bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP32 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP32 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP33 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP33 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | L2 write through enabled | JP34 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | L2 write back enabled | JP34 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Turbo speed enabled | JP35 | Open |
|---+----------------------------------+--------+------------|
| | Turbo speed disabled | JP35 | Closed |
|---+----------------------------------+--------+------------|
| » | DRAM configuration select Table | JP41 | pins 2 & 3 |
| | 1 | | closed |
|---+----------------------------------+--------+------------|
| | DRAM configuration select Table | JP41 | pins 1 & 2 |
| | 2 | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (TABLE 1) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 0/1 | Bank 1 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | NONE | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | NONE | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | NONE | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | NONE | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | NONE | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | NONE | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | NONE | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (TABLE 2) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 0/1 | Bank 1 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 512K x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 10MB | NONE | (1) 512K x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 64MB | NONE | (1) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------+-------------+-------------+------------------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|-------+-------------+-------------+------------------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|-------+-------------+-------------+------------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 or (1) 32K |
| | | | x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP13 | JP28 | JP29 |
|------------+-------------------+-------------+-------------|
| 64KB | pins 2 & 3 closed | Open | Open |
|------------+-------------------+-------------+-------------|
| 128KB | pins 1 & 2 closed | Open | Closed |
|------------+-------------------+-------------+-------------|
| 256KB | pins 2 & 3 closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TAG SRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | TAG | JP27 |
|------------------+--------------------+--------------------|
| 64KB | (1) 8K x 8 | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 128KB | (1) 8K x 8 | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | (1) 16K x 8 | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 256KB | (1) 32K x 8 | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP5 | JP6 | JP8 | JP19 | JP24 | JP39 | JP43 |
|----------+------+------+------+------+------+------+-------|
| 80486SX |2 & 3 | Open | Open |1 & 2 | Open |2 & 3 | Open |
|----------+------+------+------+------+------+------+-------|
| CX486M6 |2 & 3 | Open | Open |1 & 2 |1 & 2 |1 & 2 | Open |
|----------+------+------+------+------+------+------+-------|
| CX486M7 |1 & 2 |2 & 3 |1 & 2 |1 & 2 |1 & 2 |1 & 2 | Open |
|----------+------+------+------+------+------+------+-------|
| 80486DX |1 & 2 |2 & 3 |1 & 2 |1 & 2 | Open |2 & 3 | Open |
|----------+------+------+------+------+------+------+-------|
| 80486DX4 |1 & 2 |2 & 3 |1 & 2 |1 & 2 | Open |2 & 3 |Closed |
|----------+------+------+------+------+------+------+-------|
|Overdrive |1 & 2 |2 & 3 |1 & 2 |2 & 3 |2 & 3 |2 & 3 | Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
|80486DX includes Intel and AMD DX/DXL. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (UPDATED VERSION) |
|------------------------------------------------------------|
| Type | JP5 | JP6 | JP8 | JP19 | JP24 | JP39 | JP43 |
|----------+------+------+------+------+------+------+-------|
| 80486SX |2 & 3 | Open | Open |1 & 2 | Open |2 & 3 |Closed |
|----------+------+------+------+------+------+------+-------|
| CX486M6 |2 & 3 | Open | Open |1 & 2 |1 & 2 |1 & 2 |Closed |
|----------+------+------+------+------+------+------+-------|
| CX486M7 |1 & 2 |2 & 3 |1 & 2 |1 & 2 |1 & 2 |1 & 2 |Closed |
|----------+------+------+------+------+------+------+-------|
| 80486DX |1 & 2 |2 & 3 |1 & 2 |1 & 2 | Open |2 & 3 |Closed |
|----------+------+------+------+------+------+------+-------|
| 80486DX4 |1 & 2 |2 & 3 |1 & 2 |1 & 2 | Open |2 & 3 | Open |
|----------+------+------+------+------+------+------+-------|
|Overdrive |1 & 2 |2 & 3 |1 & 2 |2 & 3 |2 & 3 |2 & 3 |Closed |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
|80486DX includes Intel and AMD DX/DXL. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP25 |
|-----------------------+------------+-----------+-----------|
| » | PQFP CPU disabled | Open | Open | Closed |
|---+-------------------+------------+-----------+-----------|
| | PQFP CPU enabled | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP3 | JP4 | JP17 |
|---------------+--------------+--------------+--------------|
| 25MHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Open | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 50MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU CLOCK SPEED CONFIGURATION (INTEL DX4) |
|------------------------------------------------------------|
| Clock speed | JP36 | JP37 | JP38 |
|---------------+---------------+--------------+-------------|
| 2x | Open | Closed | Open |
|---------------+---------------+--------------+-------------|
| 2.5x | Open | Open | Closed |
|---------------+---------------+--------------+-------------|
| 3x | Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU POWER VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP44 | JP45 | JP46 |
|---------------+------------+-----------+-------------------|
| 3.3 (DX4) | Open | Closed | pins 1 & 2 closed |
|---------------+------------+-----------+-------------------|
| 5 (other CPU) | Closed | Open | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP40 |
|----------------------------+-------------------------------|
| < = 33MHz | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| POWER MANAGEMENT CONFIGURATION |
|------------------------------------------------------------|
| Mode | JP9 | JP10 |
|------------------------+-----------------+-----------------|
| » | Non SMM | Open | Open |
|----+-------------------+-----------------+-----------------|
| | SMM | Closed | Closed |
+------------------------------------------------------------+