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# AMERICAN MEGATRENDS, INC.
SUPER VOYAGER VLB-II (VER. 2)
Processor 80486SX/80487SX/80486DX/P23T/Pentium Overdrive
Processor 20/25/33/50(internal)/50/66(internal)MHz
Speed
Chip Set AMI
Max. Onboard 64MB
DRAM
Cache 64/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options PS/2 mouse interface, parallel port, serial ports
(2), 32-bit VESA local bus slots (2), floppy
drive interface, IDE interface
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| PS/2 mouse | J1 | Reset switch | J24 |
| interface | | | |
|--------------------+----------+-----------------+----------|
| Parallel port | J4 | Speaker | J29 |
|--------------------+----------+-----------------+----------|
| Floppy drive | J6 | Turbo LED | J30 |
| interface | | | |
|--------------------+----------+-----------------+----------|
| IDE interface | J7 | Power LED & | J32 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| IDE interface LED | J8 | Turbo switch | J33 |
|--------------------+----------+-----------------+----------|
| Serial port 2 | J9 | 32-bit VESA | SL1 & |
| | | local bus slots | SL2 |
|--------------------+----------+-----------------+----------|
| Serial port 1 | J10 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Parallel port IRQ select | J13 | pins 1 & 2 |
| | IRQ5 | | closed |
|---+---------------------------+---------------+------------|
| | Parallel port IRQ select | J13 | pins 2 & 3 |
| | IRQ7 | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J14 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J18 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J19 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Serial port 2 IRQ select | J20 | pins 1 & 2 |
| | IRQ3 | | closed |
|---+---------------------------+---------------+------------|
| | Serial port 2 IRQ select | J20 | pins 2 & 3 |
| | IRQ4 | | closed |
|---+---------------------------+---------------+------------|
| » | Serial port 1 IRQ select | J21 | pins 2 & 3 |
| | IRQ4 | | closed |
|---+---------------------------+---------------+------------|
| | Serial port 1 IRQ select | J21 | pins 1 & 2 |
| | IRQ3 | | closed |
|---+---------------------------+---------------+------------|
| » | PS/2 mouse enabled | J22 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | PS/2 mouse disabled | J22 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J40 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW2/1 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select | SW2/2 | Off |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| | Monitor type select color | SW2/2 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
|------------+-----------+-----------+-----------+-----------|
| 64KB | Off | Off | Off | Off |
|------------+-----------+-----------+-----------+-----------|
| 256KB | On | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| PQFP type | PGA type | J43 | J44 | J45 |
|------------+---------------+--------------+-------+--------|
| None | 80486SX | 2 & 3 | N/A | N/A |
|------------+---------------+--------------+-------+--------|
| None | 80487SX | 1 & 2, 3 & 4 | 2 & 3 | N/A |
|------------+---------------+--------------+-------+--------|
| None | 80486DX | 1 & 2, 3 & 4 | 1 & 2 | N/A |
|------------+---------------+--------------+-------+--------|
| None | 80486DX2 | 1 & 2, 3 & 4 | 1 & 2 | N/A |
|------------+---------------+--------------+-------+--------|
| None | P23T | 1 & 2, 3 & 4 | 2 & 3 | N/A |
|------------+---------------+--------------+-------+--------|
| None | Pentium | 1 & 2, 3 & 4 | 2 & 3 | N/A |
| | Overdrive | | | |
|------------+---------------+--------------+-------+--------|
| 80486SX | None | N/A | N/A | Open |
|------------+---------------+--------------+-------+--------|
| 80486SX | 80486SX | 2 & 3 | N/A | Closed |
|------------+---------------+--------------+-------+--------|
| 80486SX | 80487SX | 1 & 2, 3 & 4 | 2 & 3 | Closed |
|------------+---------------+--------------+-------+--------|
| 80486SX | 80486DX | 1 & 2, 3 & 4 | 1 & 2 | Closed |
|------------+---------------+--------------+-------+--------|
| 80486SX | P23T | 1 & 2, 3 & 4 | 2 & 3 | Closed |
|------------+---------------+--------------+-------+--------|
| 80486SX | Pentium | 1 & 2, 3 & 4 | 2 & 3 | Closed |
| | Overdrive | | | |
|------------+---------------+--------------+-------+--------|
| 80486DX | None | N/A | N/A | Open |
|------------+---------------+--------------+-------+--------|
| 80486DX | 80487SX | 1 & 2, 3 & 4 | 2 & 3 | Closed |
|------------+---------------+--------------+-------+--------|
| 80486DX | 80486DX2 | 1 & 2, 3 & 4 | 1 & 2 | Closed |
|------------+---------------+--------------+-------+--------|
| 80486DX | P23T | 1 & 2, 3 & 4 | 2 & 3 | Closed |
|------------+---------------+--------------+-------+--------|
| 80486DX | Pentium | 1 & 2, 3 & 4 | 2 & 3 | Closed |
| | Overdrive | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | J23 |
|----------------------------+-------------------------------|
| <= 33MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 2 & 3 closed |
+------------------------------------------------------------+