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# FIRST INTERNATIONAL COMPUTER, INC.
486-PAK-2
Device Mainboard
Type
Processor CX M6/80486SX/SL80486/CX M7/AM486DX/AM486DXL/80486DX
AM486DX2/80486DX2/P4S/P24C/P24D/P24S/P24T/P24CT/
AM486DX4
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set VIA
Video Chip S3
Set
Maximum 64MB
Onboard
Memory
Maximum 2MB
Video
Memory
Cache 128/256/512KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O 32-bit VESA local bus slot, floppy drive interface, game interface,
Options IDE interface, parallel port, PS/2 mouse port, serial ports (2),
VGA feature connector, VGA port
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | CN2 | Game interface | CN9 |
|------------------+----------+-------------------+----------|
| Parallel port | CN3 | Floppy drive | CN10 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Serial port 2 | CN4 | IDE interface | J1 |
|------------------+----------+-------------------+----------|
| Serial port 1 | CN5 | Front panel | J7 – J11 |
| | | connectors | |
|------------------+----------+-------------------+----------|
| VGA port | CN6 | 32-bit VESA local | SL1 |
| | | bus slot | |
|------------------+----------+-------------------+----------|
| VGA feature | CN7 | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-------+----------------|
| » | HDD BALE disabled | J2 | Open |
|---+-------------------------------+-------+----------------|
| | HDD BALE enabled | J2 | Closed |
|---+-------------------------------+-------+----------------|
| » | Regulator board not installed | J4 | Pins 1 & 2, 15 |
| | | | & 16 closed |
|---+-------------------------------+-------+----------------|
| | Regulator board installed | J4 | Open |
|---+-------------------------------+-------+----------------|
| » | Monitor type select | J5 | Open |
| | monochrome | | |
|---+-------------------------------+-------+----------------|
| | Monitor type select color | J5 | Closed |
|---+-------------------------------+-------+----------------|
| » | Factory configured - do not | J6 | Unidentified |
| | alter | | |
|---+-------------------------------+-------+----------------|
| » | CMOS memory normal operation | JCP | Open |
|---+-------------------------------+-------+----------------|
| | CMOS memory clear | JCP | Closed |
|---+-------------------------------+-------+----------------|
| » | Green LED disabled | JG1 | Open |
|---+-------------------------------+-------+----------------|
| | Green LED enabled | JG1 | Closed |
|---+-------------------------------+-------+----------------|
| » | Outlet enabled | JG2 | Open |
|---+-------------------------------+-------+----------------|
| | Outlet disabled | JG2 | Closed |
|---+-------------------------------+-------+----------------|
| | 505 riser card installed | JL3 | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | 505 riser card not installed | JL3 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| » | VGA IRQ9 disabled | JV1 | Open |
|---+-------------------------------+-------+----------------|
| | VGA IRQ9 enabled | JV1 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (1) 256K x 36 | None | None |
|------------+---------------+---------------+---------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (1) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 5MB | (1) 1M x 36 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 6MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 17MB | (1) 4M x 36 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 18MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 36 | (1) 8M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 64K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 |
|------------------+--------------------+--------------------|
| 128KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (2) 256K x 16 | None |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 16 | (2) 256K x 16 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JK1 | JK2 | JK3 |
|---------+----------------+----------------+----------------|
| 25MHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 33MHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 40MHz | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 50iMHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 50MHz | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 66iMHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 75iMHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 100iMHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 |
|----------+----------------+----------------+---------------|
| CX M6 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| 80486SX | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| SL80486 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| CX M7 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| AM486DX | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| AM486DXL | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| 80486DX | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| AM486DX2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| 80486DX2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| P4S | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| P24C | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| P24D | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| P24S | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| P24T | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| P24CT | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| AM486DX4 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | RN16 | RN17 | RN30 | RN31 |
|----------+------------+------------+-----------+-----------|
| CX M6 | Not | Installed | Not | Not |
| | installed | | installed | installed |
|----------+------------+------------+-----------+-----------|
| 80486SX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| SL80486 | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| CX M7 | Not | Installed | Not | Not |
| | installed | | installed | installed |
|----------+------------+------------+-----------+-----------|
| AM486DX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| AM486DXL | Not | Not | Installed | Not |
| | installed | installed | | installed |
|----------+------------+------------+-----------+-----------|
| 80486DX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| AM486DX2 | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| 80486DX2 | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| P4S | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| P24C | Installed | Not | Not | Installed |
| | | installed | installed | |
|----------+------------+------------+-----------+-----------|
| P24D | Installed | Not | Not | Installed |
| | | installed | installed | |
|----------+------------+------------+-----------+-----------|
| P24S | Not | Not | Not | Installed |
| | installed | installed | installed | |
|----------+------------+------------+-----------+-----------|
| P24T | Installed | Not | Not | Installed |
| | | installed | installed | |
|----------+------------+------------+-----------+-----------|
| P24CT | Installed | Not | Not | Installed |
| | | installed | installed | |
|----------+------------+------------+-----------+-----------|
| AM486DX4 | Not | Not | Not | Installed |
| | installed | installed | installed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU WRITE SELECTION |
|------------------------------------------------------------|
| Setting | JC4 |
|-----------------------------------+------------------------|
| » | Write through | Open |
|---+-------------------------------+------------------------|
| | Write back | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AMD CLOCK MODE SELECTION |
|------------------------------------------------------------|
| Setting | JC5 |
|-------------------------------+----------------------------|
| Speed double for DX2-80V/DX4 | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| Speed double for DX2 plus | Pins 2 & 3 closed |
|-------------------------------+----------------------------|
| Speed triple for DX2 plus | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| Speed triple for DX2-80V/DX4 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE SELECTION |
|------------------------------------------------------------|
| Setting | JV2 |
|----------------------------+-------------------------------|
| » | 0 | Pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | 1 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JV3 |
|----------------------------+-------------------------------|
| » | <= 33MHz | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | >33 MHz | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JE1 | JE2 |
|------------------+--------------------+--------------------|
| » | Disabled | Open | Open |
|---+--------------+--------------------+--------------------|
| | 1 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 3 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCICLK SELECTION |
|------------------------------------------------------------|
| Setting | JL1 | JL2 |
|--------------------+-------------------+-------------------|
| PCICLK = CPUCLK | Pins 1 & 2 closed | Pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| PCICLK = CPUCLK/2 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+