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# MYLEX CORPORATION
MAE486
Processor 80486DX
Processor Speed 25/33MHz
Chip Set Intel
Max. Onboard DRAM 32MB
Cache 128KB
BIOS Mylex/Phoenix
Dimensions 355mm x 304mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Speaker | P11 | Turbo LED | P13 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | P12 | Reset switch | P14 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Cache enabled | J1 | Closed |
|---+----------------------------------+--------+------------|
| | Cache disabled | J1 | Open |
|---+----------------------------------+--------+------------|
| » | CPU speed select 33MHz | J2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU speed select 25MHz | J2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J15 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J16 | pins 2 & 3 |
| | alter | | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
|Size| J3 | J4 | J5 | J6 | J7 |J8 | J9 |J10|J11|J12|
|----+------+------+------+------+-----+---+-----+---+---+---|
|1MB | Open | Open | Open | Open |Open |2 &|Open |1 &|1 &|1 &|
| | | | | | | 3 | | 2 | 2 | 2 |
|----+------+------+------+------+-----+---+-----+---+---+---|
|2MB |Closed|Closed|Closed|Closed|Open |1 &|Open |1 &|1 &|2 &|
| | | | | | | 2 | | 2 | 2 | 3 |
|----+------+------+------+------+-----+---+-----+---+---+---|
|4MB | Open | Open | Open | Open |Open |1 &|2 & 3|1 &|1 &|2 &|
| | | | | | | 2 | | 2 | 2 | 3 |
|----+------+------+------+------+-----+---+-----+---+---+---|
|8MB |Closed|Closed|Closed|Closed|Open |1 &|1 & 2|2 &|1 &|2 &|
| | | | | | | 2 | | 3 | 2 | 3 |
|----+------+------+------+------+-----+---+-----+---+---+---|
|16MB| Open | Open | Open | Open |2 & 3|1 &|1 & 2|2 &|1 &|2 &|
| | | | | | | 2 | | 3 | 2 | 3 |
|----+------+------+------+------+-----+---+-----+---+---+---|
|32MB|Closed|Closed|Closed|Closed|1 & 2|1 &|1 & 2|2 &|2 &|2 &|
| | | | | | | 2 | | 3 | 3 | 3 |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 128KB | (16) 8K x 8 |
+------------------------------------------------------------+