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# UNIDENTIFIED
J-403TG 486 GREEN VLB
Processor 80486SX/CX486DX/80486DX/80486DX2/80486DX4
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set OPTI
Max. Onboard 128MB
DRAM
Cache 64/128/256KB
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O Options 32-bit VESA local bus slots (3), green PC
connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Reset switch | J1 | Power LED & | J6 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| External battery | J2 | Green PC | JP6 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Speaker | J3 | Green PC | JP39 |
| | | connector | |
| | | (monitor) | |
|------------------+----------+-------------------+----------|
| Turbo switch | J4 | Green PC LED | JP41 |
|------------------+----------+-------------------+----------|
| Turbo LED | J5 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | JP1 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP7 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP12 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP16 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP19 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP22 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP26 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP30 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | U28 | Open |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | JP5 |
|------+----------+------------+----------+----------+-------|
| 2MB | (4) 256K | NONE | NONE | (1) 256K | 2 & 3 |
| | x 9 | | | x 36 | |
|------+----------+------------+----------+----------+-------|
| 2MB | NONE | NONE | NONE | (1) 512K | 1 & 2 |
| | | | | x 36 | |
|------+----------+------------+----------+----------+-------|
| 4MB | (4) 1M x | NONE | NONE | NONE | 2 & 3 |
| | 9 | | | | |
|------+----------+------------+----------+----------+-------|
| 4MB | NONE | NONE | NONE | (1) 1M x | 1 & 2 |
| | | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 4MB | (4) 256K | (1) 256K x | (1) 256K | (1) 256K | 2 & 3 |
| | x 9 | 36 | x 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 4MB | NONE | NONE | (1) 512K | (1) 512K | 1 & 2 |
| | | | x 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 5MB | (4) 256K | NONE | NONE | (1) 1M x | 2 & 3 |
| | x 9 | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 6MB | (4) 256K | NONE | (1) 1M x | (1) 256K | 2 & 3 |
| | x 9 | | 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 6MB | NONE | NONE | (1) 1M x | (1) 512K | 1 & 2 |
| | | | 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 8MB | (4) 1M x | NONE | NONE | (1) 1M x | 2 & 3 |
| | 9 | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 8MB | NONE | NONE | NONE | (1) 2M x | 1 & 2 |
| | | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 8MB | NONE | NONE | (1) 1M x | (1) 1M x | 1 & 2 |
| | | | 36 | 36 | |
|------+----------+------------+----------+----------+-------|
| 10MB | (4) 256K | NONE | (1) 2M x | (1) 256K | 2 & 3 |
| | x 9 | | 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 10MB | (4) 256K | (1) 1M x | (1) 1M x | (1) 256K | 2 & 3 |
| | x 9 | 36 | 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 10MB | NONE | NONE | (1) 2M x | (1) 512K | 1 & 2 |
| | | | 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 10MB | NONE | (1) 1M x | (1) 1M x | (1) 512K | 1 & 2 |
| | | 36 | 36 | x 36 | |
|------+----------+------------+----------+----------+-------|
| 12MB | (4) 1M x | NONE | (1) 2M x | NONE | 2 & 3 |
| | 9 | | 36 | | |
|------+----------+------------+----------+----------+-------|
| 12MB | NONE | (1) 1M x | (1) 1M x | (1) 1M x | 1 & 2 |
| | | 36 | 36 | 36 | |
|------+----------+------------+----------+----------+-------|
| 12MB | (4) 1M x | (1) 1M x | (1) 1M x | NONE | 2 & 3 |
| | 9 | 36 | 36 | | |
|------+----------+------------+----------+----------+-------|
| 16MB | (4) 4M x | NONE | NONE | NONE | 2 & 3 |
| | 9 | | | | |
|------+----------+------------+----------+----------+-------|
| 16MB | NONE | NONE | NONE | (1) 4M x | 1 & 2 |
| | | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 16MB | (4) 1M x | (1) 1M x | (1) 1M x | (1) 1M x | 2 & 3 |
| | 9 | 36 | 36 | 36 | |
|------+----------+------------+----------+----------+-------|
| 16MB | NONE | NONE | (1) 2M x | (1) 2M x | 1 & 2 |
| | | | 36 | 36 | |
|------+----------+------------+----------+----------+-------|
| 17MB | (4) 256K | NONE | NONE | (1) 4M x | 2 & 3 |
| | x 9 | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 20MB | (4) 1M x | NONE | NONE | (1) 4M x | 2 & 3 |
| | 9 | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 20MB | (4) 1M x | NONE | (1) 4M x | NONE | 2 & 3 |
| | 9 | | 36 | | |
|------+----------+------------+----------+----------+-------|
| 20MB | NONE | NONE | (1) 4M x | (1) 1M x | 1 & 2 |
| | | | 36 | 36 | |
|------+----------+------------+----------+----------+-------|
| 32MB | (4) 4M x | NONE | NONE | (1) 4M x | 2 & 3 |
| | 9 | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 32MB | NONE | NONE | NONE | (1) 8M x | 1 & 2 |
| | | | | 36 | |
|------+----------+------------+----------+----------+-------|
| 32MB | (4) 4M x | NONE | (1) 4M x | NONE | 2 & 3 |
| | 9 | | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | JP5 |
|-------+-----------+----------+----------+----------+-------|
| 32MB | NONE | NONE | (1) 4M x | (1) 4M x | 1 & 2 |
| | | | 36 | 36 | |
|-------+-----------+----------+----------+----------+-------|
| 64MB | (4) 16M x | NONE | NONE | NONE | 2 & 3 |
| | 9 | | | | |
|-------+-----------+----------+----------+----------+-------|
| 64MB | NONE | NONE | NONE | (1) 16M | 1 & 2 |
| | | | | x 36 | |
|-------+-----------+----------+----------+----------+-------|
| 64MB | (4) 4M x | (1) 4M x | (1) 4M x | (1) 4M x | 2 & 3 |
| | 9 | 36 | 36 | 36 | |
|-------+-----------+----------+----------+----------+-------|
| 64MB | NONE | NONE | (1) 8M x | (1) 8M x | 1 & 2 |
| | | | 36 | 36 | |
|-------+-----------+----------+----------+----------+-------|
| 128MB | (4) 16M x | NONE | NONE | (1) 16M | 2 & 3 |
| | 9 | | | x 36 | |
|-------+-----------+----------+----------+----------+-------|
| 128MB | NONE | NONE | NONE | (1) 32M | 1 & 2 |
| | | | | x 36 | |
|-------+-----------+----------+----------+----------+-------|
| 128MB | (4) 16M x | NONE | (1) 16M | NONE | 2 & 3 |
| | 9 | | x 36 | | |
|-------+-----------+----------+----------+----------+-------|
| 128MB | NONE | NONE | (1) 16M | (1) 16M | 1 & 2 |
| | | | x 36 | x 36 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed positon. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8 | JP27 | JP28 |
|------------+-------------------+-------------+-------------|
| 64KB | pins 2 & 3 closed | Open | Open |
|------------+-------------------+-------------+-------------|
| 128KB | pins 1 & 2 closed | Closed | Open |
|------------+-------------------+-------------+-------------|
| 256KB | pins 2 & 3 closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP9 | JP10 | JP11 | JP13 | JP15 |
|------------+--------+--------+----------+---------+--------|
| 80486SX | Open | Open | pins 1 & | Open | Open |
| | | | 2 closed | | |
|------------+--------+--------+----------+---------+--------|
| SL80486SX | Open | Closed | pins 1 & | Open | Open |
| | | | 2 closed | | |
|------------+--------+--------+----------+---------+--------|
| CX486DX | Closed | Open | pins 2 & | pins 1 | Closed |
| | | | 3 closed | & 2 | |
| | | | | closed | |
|------------+--------+--------+----------+---------+--------|
| 80486DX | Open | Open | pins 1 & | pins 1 | Open |
| | | | 2 closed | & 2 | |
| | | | | closed | |
|------------+--------+--------+----------+---------+--------|
| SL80486DX | Open | Closed | pins 1 & | pins 1 | Open |
| | | | 2 closed | & 2 | |
| | | | | closed | |
|------------+--------+--------+----------+---------+--------|
| 80486DX2 | Open | Open | pins 1 & | pins 1 | Open |
| | | | 2 closed | & 2 | |
| | | | | closed | |
|------------+--------+--------+----------+---------+--------|
| SL80486DX2 | Open | Closed | pins 1 & | pins 1 | Open |
| | | | 2 closed | & 2 | |
| | | | | closed | |
|------------+--------+--------+----------+---------+--------|
| 80486DX4 | Open | Closed | pins 1 & | pins 1 | Open |
| | | | 2 closed | & 2 | |
| | | | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP20 | JP21 | JP23 | JP32 | JP40 |
|------------+--------+--------+----------+-------+----------|
| 80486SX | Open | Open | 2 & 3 | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+--------+--------+----------+-------+----------|
| SL80486SX | Open | Open | 2 & 3 | Open | 1 & 2, 3 |
| | | | | | & 4 |
|------------+--------+--------+----------+-------+----------|
| CX486DX | Open | Open | 1 & 2, 3 | 1 & 2 | 1 & 2, 3 |
| | | | & 4 | | & 4 |
|------------+--------+--------+----------+-------+----------|
| 80486DX | Open | Open | 1 & 2, 3 | Open | 1 & 2, 3 |
| | | | & 4 | | & 4 |
|------------+--------+--------+----------+-------+----------|
| SL80486DX | Closed | Closed | 1 & 2, 3 | Open | 1 & 2, 3 |
| | | | & 4 | | & 4 |
|------------+--------+--------+----------+-------+----------|
| 80486DX2 | Open | Open | 1 & 2, 3 | Open | 1 & 2, 3 |
| | | | & 4 | | & 4 |
|------------+--------+--------+----------+-------+----------|
| SL80486DX2 | Closed | Closed | 1 & 2, 3 | Open | 1 & 2, 3 |
| | | | & 4 | | & 4 |
|------------+--------+--------+----------+-------+----------|
| 80486DX4 | Closed | Closed | 1 & 2, 3 | 2 & 3 | 1 & 2 |
| | | | & 4 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP17 | JP18 |
|--------------------+-------------------+-------------------|
| 25MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 33MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 40MHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 50iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 50MHz | Open | Closed |
|--------------------+-------------------+-------------------|
| 66iMHz | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP29 |
|----------------------------+-------------------------------|
| 3.3v | pins 3 & 5, 4 & 6 closed |
|----------------------------+-------------------------------|
| 5.0v | pins 1 & 3, 2 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP35 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP31 | JP33 | JP37 |
|-----------+-------------------+-------------------+--------|
| <= 33MHz | pins 1 & 2 closed | pins 2 & 3 closed | Open |
|-----------+-------------------+-------------------+--------|
| > 33MHz | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+