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# BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-8575/90/00 VER. 1 & 2
Processor Pentium
Processor 75/90/100/120/133/150/166/180MHz
Speed
Chip Set Unidentified
Max. Onboard 128MB
DRAM
Cache 256/512KB
BIOS Award
Dimensions 254mm x 218mm
I/O Options Parallel port, serial ports (2), game port,
32-bit PCI slots (3), floppy drive interface, IDE
interfaces (2), green PC connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| Serial port 1 | J3 | Turbo switch | J8 pins |
| | | | 14 - 16 |
|------------------+----------+------------------+-----------|
| Serial port 2 | J4 | +5v ground | J8 pins |
| | | | 17 - 18 |
|------------------+----------+------------------+-----------|
| Game port | J5 | IDE interface 2 | J9 |
|------------------+----------+------------------+-----------|
| Parallel port | J6 | IDE interface 1 | J10 |
|------------------+----------+------------------+-----------|
| Floppy drive | J7 | Green PC | JP11 |
| interface | | connector | |
|------------------+----------+------------------+-----------|
| Speaker | J8 pins | IDE interface | JP17 |
| | 1 - 4 | LED | |
|------------------+----------+------------------+-----------|
| Power LED & | J8 pins | Chassis fan | JP19 |
| keylock | 5 - 9 | power | |
|------------------+----------+------------------+-----------|
| Turbo LED | J8 pins | 32-bit PCI slots | PC1 - PC3 |
| | 10 - 11 | | |
|------------------+----------+------------------+-----------|
| Reset switch | J8 pins | | |
| | 12 - 13 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | JP3 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP4 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP4 | Closed |
|---+----------------------------------+--------+------------|
| » | BIOS type select 5v flash BIOS | JP5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select 12v flash BIOS | JP5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select EPROM | JP5 | Open |
|---+----------------------------------+--------+------------|
| » | Secondary IDE IRQ select IRQ15 | JP8 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Secondary IDE IRQ through PCI | JP8 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Primary IDE IRQ14 enabled | JP9 | Closed |
|---+----------------------------------+--------+------------|
| | Primary IDE IRQ14 disabled | JP9 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP14 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | ISA clock speed select PCI | JP21 | pins 1 & 2 |
| | clock/3 | | closed |
|---+----------------------------------+--------+------------|
| | SA clock speed select PCI | JP21 | pins 2 & 3 |
| | clock/4 | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP22 | pins 2 & 3 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | NONE |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP10 | JP12 | JP13 |
|-------+-----------------+-----------------+----------------|
| 0KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 512KB | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP20 |
|----------------------------+-------------------------------|
| P54C | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P54CQS | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P54CS | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P54CT | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P55C | Open |
|----------------------------+-------------------------------|
| P55CT | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP6 | JP7 | JP15 | JP16 |
|------------+-----------+-----------+-----------+-----------|
| 75MHz | Open | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 90MHz | Open | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 100MHz | Closed | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 120MHz | Open | Closed | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 133MHz | Closed | Closed | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 150MHz | Open | Closed | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 166MHz | Closed | Closed | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 180MHz | Open | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP27 |
|----------------------------+-------------------------------|
| 3.4v | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3.5v | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | JP1 | JP2 |
|------------------+--------------------+--------------------|
| DMA 1 | pins 1 & 3 closed | pins 1 & 3 closed |
|------------------+--------------------+--------------------|
| DMA 2 | pins 2 & 4 closed | pins 2 & 4 closed |
+------------------------------------------------------------+