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# ADVANCED INTEGRATION RESEARCH, INC.
486PH REV. 1.0
Processor 80486SX/CX486DX/AM486DX/80486DX/CX486DX2/AM486DX2/80486DX2/
AM486DX4/80486DX4
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 32-bit VESA local bus slots (2), 32-bit PCI slots (3), green
Options PC connector, IDE interface
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Speaker | J1 | Turbo LED | J6 |
|-------------------+----------+------------------+----------|
| Power LED & | J2 | IDE interface | J7 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| IDE interface LED | J3 | Green PC | J8 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Turbo switch | J4 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|-------------------+----------+------------------+----------|
| Reset switch | J5 | 32-bit VESA | SL1 & |
| | | local bus slots | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select | JP2 | Open |
| | monochrome/EGA/VGA | | |
|---+----------------------------------+--------+------------|
| | Monitor type select CGA | JP2 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP3 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP14 | pins 1 & 2 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 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 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 1M x 36 | NONE | (1) 1M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 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 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | 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 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 4M x 36 | NONE | (1) 4M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 8M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 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 | JP16 | JP23 | JP24 | JP25 |
|-----------------+--------+--------+--------+-------+-------|
| 80486SX | Closed | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+--------+--------+--------+-------+-------|
| CX486DX (3.3v) | Closed | Closed | Closed | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| CX486DX (5v) | Closed | Open | Closed | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| AM486DX | Closed | Open | Closed | 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 | Open | Closed | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| AM486DX2 | Closed | Open | Open | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| 80486DX2 | Closed | Open | Open | 1 & 2 | 1 & 2 |
|-----------------+--------+--------+--------+-------+-------|
| AM486DX4 | Closed | Open | Closed | 1 & 2 | 2 & 3 |
|-----------------+--------+--------+--------+-------+-------|
| 80486DX4 | Closed | Open | Open | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP6 | JP19 | JP20 | JP21 |
|----------+-------------------+---------+---------+---------|
| 25MHz | pins 2 & 3 closed | Closed | Open | Open |
|----------+-------------------+---------+---------+---------|
| 33MHz | pins 1 & 2 closed | Open | Closed | Closed |
|----------+-------------------+---------+---------+---------|
| 50iMHz | pins 2 & 3 closed | Closed | Open | Open |
|----------+-------------------+---------+---------+---------|
| 66iMHz | pins 1 & 2 closed | Open | Closed | Closed |
|----------+-------------------+---------+---------+---------|
| 75iMHz | pins 2 & 3 closed | Closed | Open | Open |
|----------+-------------------+---------+---------+---------|
| 100iMHz | pins 1 & 2 closed | Open | Closed | Closed |
+------------------------------------------------------------+