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# FIRST INTERNATIONAL COMPUTER, INC.
486-PVT (REV. B2)
Processor CX486SX/80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/
CX486DX/CX486DXV/CX486DX2/CX486DX2V/AM486DX2/
80486DX2/SL80486DX2/80486DX4/P24CT/P24D/P24T
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set VIA
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 128/256/512KB
BIOS Award
Dimensions 254mm x 218mm
I/O 32-bit VESA local bus slots (2), green PC connector, Low voltage
Options regulator board connector
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Low voltage | CN6 | Speaker | J8 |
| regulator board | | | |
| connector | | | |
|-------------------+----------+------------------+----------|
| Green PC LED | J3 | Power LED & | J9 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Green PC | J4 | Green PC | J10 |
| connector | | connector | |
|-------------------+----------+------------------+----------|
| Turbo LED | J5 | Chassis fan | J11 |
| | | power | |
|-------------------+----------+------------------+----------|
| Turbo switch | J6 | 32-bit VESA | SL1 & |
| | | local bus slots | SL2 |
|-------------------+----------+------------------+----------|
| Reset switch | J7 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Password normal operation | JCP | Open |
|---+---------------------------------+-------+--------------|
| | Password clear | JCP | Closed |
|---+---------------------------------+-------+--------------|
| » | Monitor type select | JP1 | Open |
| | monochrome/EGA/VGA | | |
|---+---------------------------------+-------+--------------|
| | Monitor type select color | JP1 | Closed |
|---+---------------------------------+-------+--------------|
| | Jumper information unavailable | JP2 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | None | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 1MB | None | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 1MB | None | None | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | None | (1) 256K x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 2MB | None | None | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 2MB | None | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | None | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | None | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 4MB | None | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 4MB | None | None | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | None | (1) 1M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | None | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | None | (1) 256K x | (1) 1M x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | None | (1) 1M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 1M x 36 | (1) 256K x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | None | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | None | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 256K x | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | None | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | None | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | None | None | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 1M x 36 | (1) 256K x | (1) 1M x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | None | (1) 256K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | None | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | None | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | None | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 1M x 36 | (1) 256K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | None | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | None | None | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | None | (1) 4M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | None | (1) 256K x | (1) 4M x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | None | (1) 4M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 256K x | (1) 256K x | (1) 4M x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 256K x | (1) 4M x 36 | (1) 256K x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | None | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 256K x | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | None | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | None | (1) 1M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | None | (1) 4M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 256K x | (1) 1M x 36 | (1) 4M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 256K x | (1) 4M x 36 | (1) 1M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 1M x 36 | (1) 256K x | (1) 4M x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 1M x 36 | (1) 4M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 1M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | None | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 256K x | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 32MB | None | None | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 32MB | None | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | None | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 33MB | (1) 256K x | (1) 4M x | (1) 4M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 33MB | None | (1) 256K x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 33MB | (1) 256K x | None | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 256K x | (1) 256K x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | None | (1) 1M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | None | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 37MB | (1) 256K x | (1) 1M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 37MB | (1) 1M x 36 | (1) 256K x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | None | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 49MB | (1) 256K x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | None | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 65MB | (1) 256K x | (1) 8M x | (1) 8M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 66MB | (1) 256K x | (1) 256K x | (1) 8M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 66MB | (1) 256K x | (1) 8M x | (1) 256K x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 66MB | (1) 8M x 36 | (1) 8M x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 68MB | None | (1) 1M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 8M x 36 | (1) 8M x | (1) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 69MB | (1) 256K x | (1) 8M x | (1) 1M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 69MB | (1) 1M x 36 | (1) 256K x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 69MB | (1) 1M x 36 | (1) 8M x | (1) 256K x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 8M x | (1) 1M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 8M x 36 | (1) 8M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 4M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 8M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 81MB | (1) 256K x | (1) 4M x | (1) 8M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 81MB | (1) 256K x | (1) 8M x | (1) 4M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 84MB | (1) 1M x 36 | (1) 4M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 84MB | (1) 1M x 36 | (1) 8M x | (1) 4M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 97MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 8K/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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JK1 | JK2 | JK3 | JK4 |
|---------+------------+------------+------------+-----------|
| 25MHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 33MHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 40MHz | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 50iMHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 50MHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+------------+------------+------------+-----------|
| 66iMHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 75iMHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 100iMHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 | JC4 | JC5 |
|--------------+---------+---------+--------+--------+-------|
| CX486SX | 2 & 3 | 2 & 3 | 1 & 2 | Open | 2 & 3 |
|--------------+---------+---------+--------+--------+-------|
| 80486SX | 2 & 3 | 2 & 3 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| SL80486SX | 2 & 3 | 2 & 3 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| AM486DX | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| 80486DX | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| SL 80486DX | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| CX486DX | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| CX486DXV | 1 & 2 | 1 & 2 | 1 & 2 | Open | 2 & 3 |
|--------------+---------+---------+--------+--------+-------|
| CX486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| CX486DX2V | 1 & 2 | 1 & 2 | 1 & 2 | Open | 2 & 3 |
|--------------+---------+---------+--------+--------+-------|
| AM486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| 80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| SL 80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| 80486DX4 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| P24CT | 1 & 2 | 1 & 2 | 1 & 2 | Closed | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| P24D | 1 & 2 | 1 & 2 | 1 & 2 | Closed | 1 & 2 |
|--------------+---------+---------+--------+--------+-------|
| P24T | 1 & 2 | 1 & 2 | 1 & 2 | Closed | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | RN16 | RN17 | RN18 | RN19 |
|------------+-----------+-----------+-----------+-----------|
| CX486SX | Installed | Not | Not | Not |
| | | installed | installed | installed |
|------------+-----------+-----------+-----------+-----------|
| 80486SX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| SL80486SX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| AM486DX | Not | Not | Installed | Not |
| | installed | installed | | installed |
|------------+-----------+-----------+-----------+-----------|
| 80486DX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| SL 80486DX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| CX486DX | Installed | Not | Not | Not |
| | | installed | installed | installed |
|------------+-----------+-----------+-----------+-----------|
| CX486DXV | Installed | Not | Not | Not |
| | | installed | installed | installed |
|------------+-----------+-----------+-----------+-----------|
| CX486DX2 | Installed | Not | Not | Not |
| | | installed | installed | installed |
|------------+-----------+-----------+-----------+-----------|
| CX486DX2V | Installed | Not | Not | Not |
| | | installed | installed | installed |
|------------+-----------+-----------+-----------+-----------|
| AM486DX2 | Not | Not | Installed | Not |
| | installed | installed | | installed |
|------------+-----------+-----------+-----------+-----------|
| 80486DX2 | Not | Not | Not | Installed |
| | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| SL | Not | Not | Not | Installed |
| 80486DX2 | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| AM486DX4 | Not | Not | Installed | Not |
| | installed | installed | | installed |
|------------+-----------+-----------+-----------+-----------|
| 80486DX4 | Not | Not | Not | Installed |
| | installed | installed | installed | |
|------------+-----------+-----------+-----------+-----------|
| P24CT | Not | Installed | Not | Installed |
| | installed | | installed | |
|------------+-----------+-----------+-----------+-----------|
| P24D | Not | Installed | Not | Installed |
| | installed | | installed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP3 |
|-----------------------------+------------------------------|
| All CPU types | Pins 1 & 2 closed |
|-----------------------------+------------------------------|
| Cyrix CPUs only | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (AMD ONLY) |
|------------------------------------------------------------|
| Type | J12 |
|-------------------------------+----------------------------|
| AM486DX2 | Closed |
|-------------------------------+----------------------------|
| AM486DX4 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED MULTIPLIER SELECTION (AMD ONLY) |
|------------------------------------------------------------|
| Multiplier | J2 |
|-------------------------------+----------------------------|
| 2x | Closed |
|-------------------------------+----------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JCV1 | JCV2 | CN6 |
|---------+---------------------+---------------+------------|
| 3v | 1 & 2 | Open | 7 & 8, 9 & |
| | | | 10 |
|---------+---------------------+---------------+------------|
| 3.3v | 2 & 3 | Open | 7 & 8, 9 & |
| | | | 10 |
|---------+---------------------+---------------+------------|
| 3.45v | Jumper together pin | 7 & 8, 9 & 10 | |
| | 2 on JCV1 and pin 2 | | |
| | on JCV2 | | |
|---------+---------------------+---------------+------------|
| 3.6v | Open | 1 & 2 | 7 & 8, 9 & |
| | | | 10 |
|---------+---------------------+---------------+------------|
| 4v | Open | 2 & 3 | 7 & 8, 9 & |
| | | | 10 |
|---------+---------------------+---------------+------------|
| 5v | Jumper together pin | 1 & 2, 3 & 4, | |
| | 2 on JCV1 and pin 2 | 13 & 14, 15 & | |
| | on JCV2 | 16 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE SELECTION |
|------------------------------------------------------------|
| Setting | JV1 |
|----------------------------+-------------------------------|
| » | 0 | Pins 2 & 3 closed |
|----+-----------------------+-------------------------------|
| | 1 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JV2 |
|----------------------------+-------------------------------|
| » | <= 33MHz | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | >33 MHz | Pins 1 & 2 closed |
+------------------------------------------------------------+