TEXT View Source
# UNIDENTIFIED
3486U
Processor 80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set UNI
Max. Onboard DRAM 32MB
Cache 32/64/128/256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options None
NPU Options 80387DX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| External battery | J4 | Turbo LED | JP15 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J5 | Turbo switch | JP17 |
|---------------------+----------+----------------+----------|
| Speaker | J6 | Reset switch | JP18 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Monitor type select color | JP1 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | JP1 | Open |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP2 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP2 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | CPU type select all CPU types | JP3 | Closed |
|---+--------------------------------+--------+--------------|
| | CPU type select 80386DX only | JP3 | 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) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP5 | JP6 | JP7 | JP8 |
|-------+--------+-------------------------+--------+--------|
| 32KB | Open | pins 2 & 3 closed | Open | Open |
|-------+--------+-------------------------+--------+--------|
| 64KB | Closed | pins 1 & 2 closed | Open | Open |
|-------+--------+-------------------------+--------+--------|
| 128KB | Closed | pins 1 & 2, 3 & 4 | Closed | Open |
| | | closed | | |
|-------+--------+-------------------------+--------+--------|
| 256KB | Closed | pins 1 & 2, 4 & 5 | Closed | Closed |
| | | closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP4 | JP9 | JP10 | JP12 | JP14 | JP16 |
|--------+--------+--------+--------+--------+-------+-------|
| 80386 | Open | 1 & 2 | 2 & 3 | 2 & 3 | Open | 2 & 3 |
|--------+--------+--------+--------+--------+-------+-------|
| 80486 | Closed | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP13 |
|------------------+-----------------------------------------|
| 80386DX | Open |
|------------------+-----------------------------------------|
| 80486SX (PQFP) | Open |
|------------------+-----------------------------------------|
| 80486SX (PGA) | pins 5 & 6, 9 & 10 closed |
|------------------+-----------------------------------------|
| 80487SX | pins 2 & 3, 4 & 5, 6 & 7, 8 & 9 closed |
|------------------+-----------------------------------------|
| 80486DX (PQFP) | Open |
|------------------+-----------------------------------------|
| 80486DX (PGA) | pins 1 & 2, 4 & 5, 6 & 7, 9 & 10 closed |
|------------------+-----------------------------------------|
| 80486DX2 | pins 1 & 2, 4 & 5, 6 & 7, 9 & 10 closed |
+------------------------------------------------------------+