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# COMPUTREND SYSTEMS, INC.
PCI PENTIUM AL1 (586ALI)
Processor Pentium
Processor Speed 60/66MHz
Chip Set ALI
Max. Onboard DRAM 160MB
Cache 256/512/1024KB
BIOS AMI
Dimensions 330mm x 220mm
I/O Options 32-bit PCI slots (4), green PC connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+-----------+-------------------+------------|
| External | JB | Reset switch | JFP pins |
| battery | | | 19 & 20 |
|---------------+-----------+-------------------+------------|
| Chassis fan | JFAN | Green PC | JG1 |
| power | | connector | |
| | | (monitor) | |
|---------------+-----------+-------------------+------------|
| Power LED & | JFP pins | Green PC LED | JG2 |
| keylock | 1 - 5 | | |
|---------------+-----------+-------------------+------------|
| Speaker | JFP pins | Green PC | JG3 |
| | 7 - 10 | connector | |
|---------------+-----------+-------------------+------------|
| Turbo LED | JFP pins | 32-bit PCI slots | PC1 - PC4 |
| | 12 & 13 | | |
|---------------+-----------+-------------------+------------|
| Turbo switch | JFP pins | | |
| | 15 - 17 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Power good signal detect from | JP1 | Pins 2 & 3 |
| | board | | closed |
|---+----------------------------------+--------+------------|
| | Power good signal detect from | JP1 | Pins 1 & 2 |
| | power supply | | closed |
|---+----------------------------------+--------+------------|
| » | Flash BIOS voltage select 12v | JP2 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 5v | JP2 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | ADS normal operation | JP5 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | ADS delay | JP5 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 2MB | (2) 256K x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (2) 512K x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 6MB | (2) 256K x 36 | (2) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 14MB | (2) 256K x 36 | (2) 512K x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 18MB | (2) 1M x 36 | (2) 1M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (2) 1M x 36 | (2) 1M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (2) 2M x 36 | (2) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 22MB | (2) 2M x 36 | (2) 512K x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 26MB | (2) 2M x 36 | (2) 1M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 28MB | (2) 2M x 36 | (2) 1M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 38MB | (2) 4M x 36 | (2) 256K x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 512K x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 42MB | (2) 4M x 36 | (2) 1M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 44MB | (2) 4M x 36 | (2) 1M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 50MB | (2) 4M x 36 | (2) 2M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 52MB | (2) 4M x 36 | (2) 2M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 56MB | (2) 4M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 66MB | (2) 8M x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 66MB | (2) 4M x 36 | (2) 4M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 68MB | (2) 8M x 36 | (2) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 68MB | (2) 4M x 36 | (2) 4M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 70MB | (2) 8M x 36 | (2) 256K x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 512K x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 74MB | (2) 8M x 36 | (2) 1M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 76MB | (2) 8M x 36 | (2) 512K x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 82MB | (2) 8M x 36 | (2) 2M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 84MB | (2) 8M x 36 | (2) 2M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 88MB | (2) 8M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 98MB | (2) 8M x 36 | (2) 4M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 100MB | (2) 8M x 36 | (2) 4M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 104MB | (2) 8M x 36 | (2) 4M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 112MB | (2) 8M x 36 | (2) 4M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 130MB | (2) 8M x 36 | (2) 8M x 36 | (2) 256K x 36 |
|------------+---------------+---------------+---------------|
| 130MB | (2) 16M x 36 | (2) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 132MB | (2) 8M x 36 | (2) 8M x 36 | (2) 512K x 36 |
|------------+---------------+---------------+---------------|
| 136MB | (2) 8M x 36 | (2) 8M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 8K/16K/32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 8 | (1) 16K/32K x 8 |
|------------------+--------------------+--------------------|
| 1MB | (8) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1MB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1MB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JK1 |
|------------------------------+-----------------------------|
| 60MHz | Open |
|------------------------------+-----------------------------|
| 66MHz | Closed |
+------------------------------------------------------------+