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# MYLEX CORPORATION
MGPS-PNTM
Processor Pentium
Processor Speed 75/90/100MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard 128MB
Memory
Maximum Video None
Memory
Cache 256/512/1024KB
BIOS Award
Dimensions 330mm x 220mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
green PC connector, IDE interface, parallel
port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Serial port 2 | J3 | Power LED & | JP22 |
| | | keylock | |
|----------------------+----------+---------------+----------|
| Serial port 1 | J4 | Turbo LED | JP23 |
|----------------------+----------+---------------+----------|
| Parallel port | J5 | Reset switch | JP24 |
|----------------------+----------+---------------+----------|
| Floppy drive | J6 | Turbo switch | JP25 |
| interface | | | |
|----------------------+----------+---------------+----------|
| IDE interface | J7 | Speaker | JP26 |
|----------------------+----------+---------------+----------|
| Green PC connector | JP2 | 32-bit PCI | PC1 – |
| | | slots | PC3 |
|----------------------+----------+---------------+----------|
| IDE interface LED | JP12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | JP21 | Open |
|---+-----------------------------------+-------+------------|
| » | Flash BIOS normal operation | JP30 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS programming mode | JP30 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | None |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Bank 0 | Bank 1 | JP1 |
|-------------------+-------------------+--------------------|
| Single Sided | Single Sided | Pins 1 & 2 closed |
|-------------------+-------------------+--------------------|
| Double Sided | Double Sided | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG 0 | TAG 1 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | (1) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (8) 64K x 8 | (1) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 1MB | (8) 128K x 8 | (1) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 |
|------------------+--------------------+--------------------|
| 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 VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Size | JP28 |
|----------------------------+-------------------------------|
| 3.3v | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 5v | Pins 5 & 6, 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU speed | Clock speed | Multiplier | JP10 | JP11 |
|------------+-------------+------------+----------+---------|
| 75MHz | 50MHz | 1.5x | Open | Open |
|------------+-------------+------------+----------+---------|
| 90MHz | 60MHz | 1.5x | Open | Closed |
|------------+-------------+------------+----------+---------|
| 100MHz | 66MHz | 1.5x | Closed | Closed |
+------------------------------------------------------------+