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# FIRST INTERNATIONAL COMPUTER, INC.
486 VAV (REV. B1)
Processor 80486SX/80487SX/80486DX/80486DX2
Processor 25/33/50(internal)/66(internal)MHz
Speed
Chip Set VIA
Max. Onboard 64MB
DRAM
Cache 64/128/256KB
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O Options 32-bit VESA local bus slots (2), floppy drive
interface, IDE interface, parallel port, PS/2
mouse port, serial ports (2), VGA feature
connector, VGA port
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | VGA port | CN8 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN2 | Chassis fan | CN9 |
| interface | | power | |
|-------------------+----------+------------------+----------|
| IDE interface | CN3 | IDE interface | CN10 |
| | | LED | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN4 | Power LED & | CN11 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port 1 & 2 | CN5 | Turbo LED | J2 |
|-------------------+----------+------------------+----------|
| VGA feature | CN6 | 32-bit VESA | S1 |
| connector | | Local bus slot | |
|-------------------+----------+------------------+----------|
| Reset switch | CN7 | 32-bit VESA | S2 |
| | | Local bus slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Password normal | J7 | Open |
|---+----------------------------------+--------+------------|
| | Password clear | J7 | Closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | J10 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J10 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | VGA interrupt enabled | J11 | Closed |
|---+----------------------------------+--------+------------|
| | VGA interrupt disabled | J11 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JC7 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP1 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JK1 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JK2 | pins 1 & 2 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 16M x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 16M x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 16M x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 16M x | (1) 4M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 16M x | (1) 4M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 16M x | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 16M x | (1) 4M x 36 | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 16M x | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 16M x | (1) 16M x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 16M x | (1) 16M x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 16M x | (1) 16M x | (1) 16M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG | MD1 (Dirty |
| | | | | bit) |
|-------+-------------+------------+------------+------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | (1) 8K x 8 |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | (1) 8K x 8 |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 32K x | (1) 32K x |
| | | 8 | 8 | 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 | JS3 |
|-------+-----------------+-----------------+----------------|
| 64KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 128KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | M1 | M2 | M3 | M4 |
|------+-------------+-------------+------------+------------|
| 1MB | N/A | N/A | (1) 256 x | (1) 256 x |
| | | | 16 | 16 |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256 x | (1) 256 x | N/A | N/A |
| | 16 | 16 | | |
|------------------------------------------------------------|
| Note: M3 & M4 are factory installed and are not |
| configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Speed | JC1 | JC2 | JC3 |
|----------+----------------+----------------+---------------|
| SX25MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| DX25MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| DX33MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| DX50iMHz | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| DX50MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| DX66MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION - JK5 |
|------------------------------------------------------------|
| Setting | Pins 1 & 2 | Pins 3 & 4 | Pins 5 & | Pins 7 & 8 |
| | | | 6 | |
|---------+------------+------------+-----------+------------|
| 25MHz | Open | Closed | Open | Open |
|---------+------------+------------+-----------+------------|
| 33MHz | Closed | Open | Open | Closed |
|---------+------------+------------+-----------+------------|
| 50iMHz | Open | Closed | Open | Open |
|---------+------------+------------+-----------+------------|
| 66iMHz | Closed | Open | Open | Closed |
+------------------------------------------------------------+