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# ADVANCED INTEGRATION RESEARCH, INC.
486PI REV. 1.20
Processor 80486SX/CX486DX/AM486DX/80486DX/CX486DX2/AM486DX2/80486DX2/
AM486DX4/80486DX4/Pentium Overdrive
Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Intel
Max. 64MB
Onboard
DRAM
Cache 128/256/512KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Parallel port, serial ports (2), 32-bit VESA local bus slots
Options (2), 32-bit PCI slots (3), floppy drive interface, IDE
interface
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Floppy drive | CN1 | Speaker | J3 |
| interface | | | |
|--------------------+----------+-----------------+----------|
| Parallel port | CN2 | Turbo switch | J4 |
|--------------------+----------+-----------------+----------|
| IDE interface | CN3 | Turbo LED | J5 |
|--------------------+----------+-----------------+----------|
| Serial port 1 | CN4 | Reset switch | J6 |
|--------------------+----------+-----------------+----------|
| Serial port 2 | CN5 | 32-bit PCI | PC1 - |
| | | slots | PC3 |
|--------------------+----------+-----------------+----------|
| Power LED & | J1 | 32-bit VESA | SL1 & |
| keylock | | local bus slots | SL2 |
|--------------------+----------+-----------------+----------|
| IDE interface LED | J2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Parallel port IRQ select IRQ7 | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port IRQ select IRQ5 | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select | JP5 | Open |
| | monochrome/EGA/VGA | | |
|---+----------------------------------+--------+------------|
| | Monitor type select CGA | JP5 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP17 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP29 | Open |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 512K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 256K x | NONE | (1) 256K x |
| | 36 | 36 | | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 512K x | (1) 512K x | NONE | (1) 256K x |
| | 36 | 36 | | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 2M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | (1) 2M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | (1) 1M x 36 | NONE | (1) 1M x |
| | 36 | | | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 256K x | NONE | (1) 256K x |
| | | 36 | | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 14MB | (1) 512K x | (1) 2M x 36 | NONE | (1) 1M x |
| | 36 | | | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 1M x 36 | NONE | (1) 1M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | NONE | (1) 256K x |
| | | 36 | | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | NONE | (1) 1M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 8M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 256K x | NONE | (1) 256K x |
| | | 36 | | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 1M x 36 | NONE | (1) 1M x |
| | | | | 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 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 | NONE | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (2) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (2) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 64K x 8 | NONE | (2) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (2) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8 | JP9 | JP11 | JP12 |
|-----------+------------+-----------+-----------+-----------|
| 128KB | Closed | Open | Open | Open |
|-----------+------------+-----------+-----------+-----------|
| 256KB | Open | Closed | Closed | Open |
|-----------+------------+-----------+-----------+-----------|
| 256KB | Closed | Open | Closed | Open |
|-----------+------------+-----------+-----------+-----------|
| 512KB | Closed | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP10 | JP25 | JP27 | JP28 | JP30 |
|-----------------+--------+--------+--------+-------+-------|
| 80486SX | Closed | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+--------+--------+--------+-------+-------|
| CX486DX (3.3v) | Closed | Closed | Closed | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| CX486DX (5v) | Closed | Closed | Open | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| AM486DX | Closed | Closed | Open | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| 80486DX | Closed | Open | Open | 1 & 2 | 1 & 2 |
|-----------------+--------+--------+--------+-------+-------|
| CX486DX2 (3.3v) | Closed | Closed | Closed | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| CX486DX2 (5v) | Closed | Closed | Open | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| AM486DX2 | Closed | Open | Open | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| 80486DX2 | Closed | Open | Open | 1 & 2 | 1 & 2 |
|-----------------+--------+--------+--------+-------+-------|
| AM486DX4 | Closed | Closed | Open | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| 80486DX4 | Closed | Open | Open | 1 & 2 | 1 & 2 |
|-----------------+--------+--------+--------+-------+-------|
| P24T | Closed | Open | Open | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP19 | JP20 | JP21 | JP22 |
|----------+---------+---------+---------+-------------------|
| 25MHz | Closed | Open | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 33MHz | Open | Closed | Closed | Closed |
|----------+---------+---------+---------+-------------------|
| 50iMHz | Closed | Open | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 66iMHz | Open | Closed | Closed | Closed |
|----------+---------+---------+---------+-------------------|
| 75iMHz | Closed | Open | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 100iMHz | Open | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA/ECP CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP4 | JP6 | JP7 |
|---------------+--------------+--------------+--------------|
| Disabled | Open | Open | pins 1 & 2 |
| | | | closed |
|---------------+--------------+--------------+--------------|
| ECP enabled | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| DMA 1 | closed | closed | closed |
|---------------+--------------+--------------+--------------|
| ECP enabled | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| DMA 3 | closed | closed | closed |
+------------------------------------------------------------+