TEXT View Source
# BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-8500SAC
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180MHz
Chip Set Unidentified
Video Chip Set SIS
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512/1024KB
BIOS Award
Dimensions 280mm x 220mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), feature connector, audio connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------+--------+-----------------+-------------|
| PS/2 mouse port | J6 | Audio connector | J20 |
|-------------------+--------+-----------------+-------------|
| VGA IDC connector | J7 | Chassis fan | JP12 |
| | | power | |
|-------------------+--------+-----------------+-------------|
| VGA D type | J8 | Speaker | JP14 pins 1 |
| connector | | | - 4 |
|-------------------+--------+-----------------+-------------|
| Feature connector | J10 | Power LED & | JP14 pins 5 |
| | | keylock | - 9 |
|-------------------+--------+-----------------+-------------|
| Serial port 2 | J11 | Turbo LED | JP14 pins |
| | | | 10 & 11 |
|-------------------+--------+-----------------+-------------|
| Floppy drive | J12 | Reset switch | JP14 pins |
| interface | | | 12 & 13 |
|-------------------+--------+-----------------+-------------|
| Serial port 1 | J13 | Green PC | JP14 pins |
| | | connector | 17 & 18 |
|-------------------+--------+-----------------+-------------|
| Parallel port | J14 | IDE interface | JP14 pins |
| | | LED | 20 & 21 |
|-------------------+--------+-----------------+-------------|
| IDE interface 1 | J15 | VCC ground | JP14 pins |
| | | connector | 25 & 26 |
|-------------------+--------+-----------------+-------------|
| IDE interface 2 | J16 | 32-bit PCI | PC1 - PC3 |
| | | slots | |
|-------------------+--------+-----------------+-------------|
| External battery | J18 | | |
|------------------------------------------------------------|
| Note: J6, J7 and J8 are optional. Only one will be |
| installed where J6 is shown. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| | Jumper information unavailable | J2 | N/A |
|---+---------------------------------+-------+--------------|
| | Jumper information unavailable | JP4 | Unidentified |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | J18 | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | J18 | Pins 3 & 4 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Battery type select external | J18 | Closed |
|---+---------------------------------+-------+--------------|
| » | Jumper information unavailable | J19 | Unidentified |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP2 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Battery type select internal | JP9 | Closed |
|---+---------------------------------+-------+--------------|
| | Battery type select external | JP9 | Open |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 12v | JP10 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 5v | JP10 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS EPROM or 0v flash | JP10 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 44MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 104MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------------+----------------+--------------+--------------|
| 256KB (A) | None | (2) 32K x 32 | None |
|-------------+----------------+--------------+--------------|
| 256KB (B) | (8) 32K x 8 | None | (1) 8K x 8 |
|-------------+----------------+--------------+--------------|
| 512KB | (8) 64K x 8 | None | (1) 32K x 8 |
|-------------+----------------+--------------+--------------|
| 1MB | (8) 128K x 8 | None | (1) 32K x 8 |
|------------------------------------------------------------|
| Note: Board will either have asynchronous or synchronous |
| pipeline burst cache installed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 |
|----------------------------+-------------------------------|
| 256KB (B) | Open |
|----------------------------+-------------------------------|
| 512KB | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 1MB | Pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP15 | JP16 |
|-------------+--------------------------+-------------------|
| P54C/CQS/CT | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
|-------------+--------------------------+-------------------|
| P55C/CT | Open | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP15 | JP16 |
|-------------+--------------------------+-------------------|
| P54C/CQS/CT | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
|-------------+--------------------------+-------------------|
| P55C/CT | Open | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP7 | JP8 | JP11 |
|-----------+----------+----------+--------------------------|
| 75MHz | Open | Closed | Open |
|-----------+----------+----------+--------------------------|
| 90MHz | Closed | Open | Open |
|-----------+----------+----------+--------------------------|
| 100MHz | Open | Open | Open |
|-----------+----------+----------+--------------------------|
| 120MHz | Closed | Open | Pins 1 & 2 closed |
|-----------+----------+----------+--------------------------|
| 133MHz | Open | Open | Pins 1 & 2 closed |
|-----------+----------+----------+--------------------------|
| 150MHz | Closed | Open | Pins 1 & 2, 3 & 4 closed |
|-----------+----------+----------+--------------------------|
| 166MHz | Open | Open | Pins 1 & 2, 3 & 4 closed |
|-----------+----------+----------+--------------------------|
| 180MHz | Closed | Open | Pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP13 |
|----------------------------+-------------------------------|
| 3.4v (VRE CPU) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3.5v (VR CPU) | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP16 |
|-----------------------------+------------------------------|
| 3.3v (P55C/CT) | Pins 2 & 3 closed |
|-----------------------------+------------------------------|
| 5v (P54C/CQS/CT) | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| Depending on board version, a VGA D type port or a serial |
| port could be installed where J6 is shown. |
+------------------------------------------------------------+