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# AUVA COMPUTER, INC.
CAM 33-U0/CAM 50-U0
Processor 80486SX/80487SX/80486DX
Processor Speed 33/50MHz
Chip Set Unidentified
Max. Onboard DRAM 32MB
Cache 32/64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Reset switch | JP1 | Turbo switch | JP4 |
|-------------------+----------+------------------+----------|
| Speaker | JP2 | Turbo LED | JP5 |
|-------------------+----------+------------------+----------|
| Power LED & | JP3 | External battery | JP25 |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CPU speed select 33MHz | JP19 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU speed select 50MHz | JP19 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP20 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP26 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP26 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP27 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP27 | 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 |
|------------------+--------------------+--------------------|
| 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 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache | Location | TAG SRAM | Location |
|-------+-------------+------------+-----------+-------------|
| 32KB | (4) 8K x 8 | U2,U4,U8 & | (4) 16K x | U6,U12,U13 |
| | | U10 | 4 | & U17 |
|-------+-------------+------------+-----------+-------------|
| 64KB | (8) 8K x 8 | ALL | (3) 16K x | U6,U13 & |
| | | | 4 | U17 |
|-------+-------------+------------+-----------+-------------|
| 128KB | (4) 32K x 8 | U2,U4,U8 & | (3) 16K x | U6,U13 & |
| | | U10 | 4 | U17 |
|-------+-------------+------------+-----------+-------------|
| 256KB | (8) 32K x 8 | ALL | (3) 16K x | U6,U13 & |
| | | | 4 | U17 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP7 | JP10 | JP11 | JP12 |
|----------+----------+----------+---------+--------+--------|
| 32KB | 2 & 3 | Open | 1 & 2 | 1 & 2 | 1 & 2 |
|----------+----------+----------+---------+--------+--------|
| 64KB | 1 & 2 | Open | 1 & 2 | 1 & 2 | 2 & 3 |
|----------+----------+----------+---------+--------+--------|
| 128KB | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
|----------+----------+----------+---------+--------+--------|
| 256KB | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP14 | JP17 | JP18 | JP21 |
|---------+-------------------+------------+--------+--------|
| 80486SX | pins 2 & 3 closed | Open | Open | Closed |
|---------+-------------------+------------+--------+--------|
| 80487SX | pins 1 & 2 closed | pins 2 & 3 | Closed | Open |
| | | closed | | |
|---------+-------------------+------------+--------+--------|
| 80486DX | pins 1 & 2 closed | pins 1 & 2 | Closed | Open |
| | | closed | | |
+------------------------------------------------------------+