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# AMERICAN DIGICOM CORPORATION
DIGIS-3486HN
Processor CX486DLC/80386DX/80486SX/80487SX/80486DX/80486DX2
Processor 20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set OPTi
Max. Onboard 32MB
DRAM
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| External battery | J2 | Turbo LED | J44 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J42 | Reset switch | J45 |
|---------------------+----------+----------------+----------|
| Turbo switch | J43 | Speaker | SPKR |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | CMOS memory normal operation | J3 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | J3 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select color | J6 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | J6 | Open |
|---+--------------------------------+--------+--------------|
| » | Supports CYRIX CPU | JP25 | Closed |
|---+--------------------------------+--------+--------------|
| | Supports other CPU | JP26 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4)1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Max | Bank 0 | Bank 1 | TAG/U29 | TAG/U30 |
| | Cachable | | | | |
|-------+------------+--------+--------+----------+----------|
| 64KB | 8MB | (4) 8K | (4) 8K | (1) 8K x | NONE |
| | | x 8 | x 8 | 8 | |
|-------+------------+--------+--------+----------+----------|
| 128KB | 16MB | (4) | NONE | (1) 8K x | NONE |
| | | 32K x | | 8 | |
| | | 8 | | | |
|-------+------------+--------+--------+----------+----------|
| 256KB | 32MB | (4) | (4) | (1) 8K x | (1) 8K x |
| | | 32K x | 32K x | 8 | 8 |
| | | 8 | 8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J34 | J36 | J37 | J38 |
|---------+----------+-------------------+---------+---------|
| 64KB | Open | pins 2 & 3 closed | Open | Open |
|---------+----------+-------------------+---------+---------|
| 128KB | Closed | pins 1 & 2 closed | Closed | Closed |
|---------+----------+-------------------+---------+---------|
| 256KB | Closed | pins 2 & 3 closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | J30 | J32 | J39 | J40 |
|---------+--------+--------+-------------------+------------|
| 20MHz | Closed | Closed | pins 1 & 2 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 25MHz | Open | Open | pins 1 & 2 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 33MHz | Open | Closed | pins 1 & 2 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 40MHz | Closed | Closed | pins 1 & 2 closed | pins 2 & 3 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 50i MHz | Open | Open | pins 1 & 2 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 50MHz | Open | Open | pins 2 & 3 closed | pins 2 & 3 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 66i MHz | Open | Closed | pins 2 & 3 closed | pins 2 & 3 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J23 | J24 | J27 | J28 | J29 | J31 | J41 |
|-------------+------+------+------+------+-----+------+-----|
| CX486DLC |1 & 2 |Closed| N/A | N/A | N/A | Open | N/A |
|-------------+------+------+------+------+-----+------+-----|
| 80386DX PGA |1 & 2 |Closed| N/A | N/A | N/A | Open | N/A |
|-------------+------+------+------+------+-----+------+-----|
|80386DX PQFP |1 & 2 | Open | N/A | N/A | N/A | Open | N/A |
|-------------+------+------+------+------+-----+------+-----|
| 80486SX PGA |2 & 3 | N/A |Closed| Open |2 & 3|Closed|Open |
|-------------+------+------+------+------+-----+------+-----|
|80486SX PQFP |2 & 3 | N/A | Open |Closed|2 & 3|Closed|Open |
|-------------+------+------+------+------+-----+------+-----|
| 80487SX |2 & 3 | N/A |Closed| Open |2 & 3|Closed|2 & 3|
|-------------+------+------+------+------+-----+------+-----|
| 80486DX |2 & 3 | N/A |Closed|Closed|1 & 2|Closed|1 & 2|
|-------------+------+------+------+------+-----+------+-----|
| 80486DX2 |2 & 3 | N/A |Closed|Closed|1 & 2|Closed|1 & 2|
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+