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# SILICON STAR INTERNATIONAL, INC.
AX4
Processor 80486SX/80486DX/80486DX2
Processor Speed 20/25/33/50(internal)/50/66(internal)MHz
Chip Set Unidentified
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 254mm x 220mm
I/O Options None
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| External battery | J1 | Turbo LED | J6 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J3 | Turbo switch | J7 |
|---------------------+----------+----------------+----------|
| Speaker | J4 | Reset switch | J8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | CMOS memory normal operation | J1 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | J1 | pins 3 & 4 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | Battery type select internal | J1 | Open |
|---+--------------------------------+--------+--------------|
| | Battery type select external | J1 | Closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select monochrome | J2 | Open |
|---+--------------------------------+--------+--------------|
| | Monitor type select color | J2 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 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 | J12 | J13 | J14 | J16 | J17 | J18 |
|-----+-----------+----------+----------+------+------+------|
|64KB | Installed | Not | Not |Closed| Open | Open |
| | |installed |installed | | | |
|-----+-----------+----------+----------+------+------+------|
|128KB| Not |Installed | Not | Open |Closed| Open |
| | installed | |installed | | | |
|-----+-----------+----------+----------+------+------+------|
|256KB| Not | Not |Installed | Open | Open |Closed|
| | installed |installed | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J11 | J15 |
|--------------------+--------------------+------------------|
| 80486SX | Not installed | Closed |
|--------------------+--------------------+------------------|
| 80486DX | Installed | Open |
|--------------------+--------------------+------------------|
| 80486DX2 | Installed | Open |
+------------------------------------------------------------+