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# EDOM INTERNATIONAL CORPORATION
486VL3H (MV020)
Processor CX486M6/80486SX/80487SX/80486DX/80486DX2/Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 64MB
DRAM
Cache 64/128/256KB
BIOS AMI/Award
Dimensions 250mm x 220mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J1 | Power LED & | JP23 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Reset switch | JP16 | Turbo LED | JP24 |
|------------------+----------+-------------------+----------|
| Speaker | JP21 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
|------------------+----------+-------------------+----------|
| Turbo switch | JP22 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP2 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP7 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP9 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP18 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | PQFP CPU disabled | JP20 | Open |
|---+----------------------------------+--------+------------|
| | PQFP CPU enabled | JP20 | Closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP26 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP26 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP27 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | P1 | Open |
| | alter | | |
|------------------------------------------------------------|
| Note: The loactions of JP7, JP18 &P1 are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 6MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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) 32K x 8 |
|------------------------------------------------------------|
| Note: The location of the TAG chip is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP5 | JP12 | JP15 | JP25 |
|--------+--------------+-------+-------------------+--------|
| 64KB | Open | 1 & 2 | Open | Open |
|--------+--------------+-------+-------------------+--------|
| 128KB | 3 & 4 | Open | pins 2 & 3 closed | Closed |
|--------+--------------+-------+-------------------+--------|
| 256KB | 1 & 2, 3 & 4 | Open | pins 1 & 2 closed | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP8 | JP10 |
|------------+--------------------+--------------------------|
| 80486SX | Open | pins 2 & 3 closed |
|------------+--------------------+--------------------------|
| 80487SX | pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed |
|------------+--------------------+--------------------------|
| 80486DX | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
|------------+--------------------+--------------------------|
| 80486DX2 | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP13 |
|----------------------------+-------------------------------|
| 25MHz | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| 33MHz | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 40MHz | pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 50iMHz | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| 50MHz | pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 66iMHz | pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP17 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP11 | JP19 |
|--------------------+--------------------+------------------|
| <= 33MHz | pins 2 & 3 closed | Open |
|--------------------+--------------------+------------------|
| > 33MHz | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+