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# EDOM INTERNATIONAL CORPORATION
486VL3 (MV026)
Processor CX486M6/80486SX/80487SX/CX486M7/80486DX/80486DX2/80486DX4/ Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set OPTI
Max. 128MB
Onboard
DRAM
Cache 64/128/256KB
BIOS AMI/Award
Dimensions 254mm x 220mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J1 | Speaker | JP18 |
|------------------+----------+-------------------+----------|
| Power LED & | J2 | Green PC | JP32 |
| keylock | | connector | |
|------------------+----------+-------------------+----------|
| Turbo switch | JP16 | Reset switch | S1 |
|------------------+----------+-------------------+----------|
| Turbo LED | JP17 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | JP26 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP26 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Cyrix M7 clock speed select 1x | JP27 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Cyrix M7 clock speed select 2x | JP27 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Other CPU types | JP27 | Open |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP30 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP30 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP37 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 512K x | NONE | (1) 512K x | NONE |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 512K x | NONE | (1) 2M x | NONE |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | NONE | (1) 16M x | NONE |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 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 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP10 | JP11 | JP13 | JP35 |
|-------+--------+--------+-----------------+----------------|
| 64KB | Open | Open | pins 2 & 3 | pins 1 & 2 |
| | | | closed | closed |
|-------+--------+--------+-----------------+----------------|
| 128KB | Open | Closed | pins 1 & 2 | pins 1 & 2 |
| | | | closed | closed |
|-------+--------+--------+-----------------+----------------|
| 256KB | Closed | Closed | pins 2 & 3 | pins 2 & 3 |
| | | | closed | closed |
|-------+--------+--------+-----------------+----------------|
| 256KB | Closed | Closed | pins 2 & 3 | pins 1 & 2 |
| | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP3 | JP5 | JP8 | JP9 |
|------------+-----------+-----------+-----------+-----------|
| CX486M6 | Open | Open | pins 2 & | pins 1 & |
| | | | 3 closed | 2 closed |
|------------+-----------+-----------+-----------+-----------|
| 80486SX | Open | Open | pins 2 & | Open |
| | | | 3 closed | |
|------------+-----------+-----------+-----------+-----------|
| 80487SX | pins 2 & | pins 2 & | pins 1 & | Open |
| | 3 closed | 3 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| CX486M7 | pins 1 & | pins 2 & | pins 1 & | Open |
| | 2 closed | 3 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| 80486DX | pins 1 & | pins 2 & | pins 1 & | Open |
| | 2 closed | 3 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| 80486DX2 | pins 1 & | pins 2 & | pins 1 & | Open |
| | 2 closed | 3 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| 80486DX4 | pins 1 & | pins 2 & | pins 1 & | Open |
| | 2 closed | 3 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| P24D | pins 1 & | pins 2 & | pins 1 & | Open |
| | 2 closed | 3 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| Pentium | pins 1 & | pins 2 & | pins 1 & | pins 2 & |
| Overdrive | 2 closed | 3 closed | 2 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP12 | JP22 | JP23 | JP45 | JP50 |
|----------------+---------+-------+--------+--------+-------|
| CX486M6 | Open | 1 & 2 | Open | Open | 2 & 3 |
|----------------+---------+-------+--------+--------+-------|
| 80486SX | Open | 1 & 2 | Open | Closed | Open |
|----------------+---------+-------+--------+--------+-------|
| 80487SX | Open | 1 & 2 | Open | Closed | Open |
|----------------+---------+-------+--------+--------+-------|
| CX486M7 | Open | 1 & 2 | Open | Open | 2 & 3 |
|----------------+---------+-------+--------+--------+-------|
| 80486DX | Open | 1 & 2 | Open | Closed | Open |
|----------------+---------+-------+--------+--------+-------|
| 80486DX2 | Open | 1 & 2 | Open | Closed | Open |
|----------------+---------+-------+--------+--------+-------|
| 80486DX4 | Open | 1 & 2 | Open | Closed | Open |
|----------------+---------+-------+--------+--------+-------|
| P24D | Closed | 1 & 2 | Closed | Closed | 1 & 2 |
|----------------+---------+-------+--------+--------+-------|
| Pentium | Open | 2 & 3 | Open | Closed | Open |
| Overdrive | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP24 | JP25 | JP36 |
|-----------------+--------------+-------------+-------------|
| Non SL-enhanced | Open | Open | Open |
|-----------------+--------------+-------------+-------------|
| SL-enhanced | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PQFP CPU CONFIGURATION |
|------------------------------------------------------------|
| Type | JP1 | JP6 | JP7 |
|---------------+--------------+--------------+--------------|
| Disabled | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| Enabled | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP38 | JP39 | JP40 | JP48 |
|----------+---------+---------+---------+-------------------|
| 25MHz | Closed | Closed | Open | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 33MHz | Closed | Open | Closed | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 40MHz | Open | Closed | Closed | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 50iMHz | Closed | Closed | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 50MHz | Closed | Closed | Closed | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 66iMHz | Closed | Open | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 75iMHz | Closed | Closed | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 100iMHz | Closed | Open | Open | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (80486DX4 ONLY) |
|------------------------------------------------------------|
| Speed | JP43 |
|----------------------------+-------------------------------|
| 2x | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2.5x | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP44 |
|----------------------------+-------------------------------|
| 3.45v | pins 2 & 3, 5 & 6 closed |
|----------------------------+-------------------------------|
| 5v | pins 1 & 2, 4 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP33 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP34 | JP46 |
|--------------------+------------------+--------------------|
| <= 33MHz | Open | pins 2 & 3 closed |
|--------------------+------------------+--------------------|
| > 33MHz | Closed | pins 1 & 2 closed |
+------------------------------------------------------------+