TEXT View Source
# ARNOS INSTRUMENTS & COMPUTER SYSTEMS, INC.
A386-25/33/40C
Processor 80386DX
Processor Speed 25/33/40MHz
Chip Set AIC
Max. Onboard DRAM 64MB
Cache 64/128/256KB
BIOS AMI/Phoenix
Dimensions 259mm x 219mm
I/O Options None
NPU Options 3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | X5 | Turbo switch | X15 |
|------------------+----------+-------------------+----------|
| Reset switch | X13 | Speaker | X16 |
|------------------+----------+-------------------+----------|
| Turbo LED | X14 | Power LED & | X17 |
| | | keylock | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | S3 | open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Battery type select 5VDC or less | S4 | pins 1 & 2 |
| | | | Closed |
|---+----------------------------------+--------+------------|
| | Battery type select greater than | S4 | pins 2 & 3 |
| | 5VDC | | Closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | S5 | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | S5 | open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | S6 | pins 2 & 3 |
| | alter | | Closed |
|---+----------------------------------+--------+------------|
| » | Battery select internal | S7 | pins 1 & 2 |
| | | | Closed |
|---+----------------------------------+--------+------------|
| | Battery select external | S7 | pins 2 & 3 |
| | | | Closed |
|---+----------------------------------+--------+------------|
| » | Power good signal detect from | S9 | pins 1 & 2 |
| | board | | Closed |
|---+----------------------------------+--------+------------|
| | Power good signal detect from | S9 | pins 2 & 3 |
| | power supply | | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| CPU Type | S6 | S9 |
|------------+-------------------+---------------------------|
| 80486DX2 | pins 1 & 2 closed | pins 1 & 2 and 3 & 4 |
| | | closed |
|------------+-------------------+---------------------------|
| 80486DX | pins 1 & 2 closed | pins 1 & 2 and 3 & 4 |
| | | closed |
|------------+-------------------+---------------------------|
| 80487SX | pins 2 & 3 closed | pins 1 & 2 and 3 & 4 |
| | | closed |
|------------+-------------------+---------------------------|
| 80486SX | open | pins 2 & 3 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 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | S1 | S2 | S8 |
|-------+-----------------+-----------------+----------------|
| 64KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 128KB | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache | Location | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | Banks 0 & 1 | (2) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | Bank 0 | (2) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | Banks 0 & 1 | (2) 32K x 8 |
+------------------------------------------------------------+