PIONEX TECHNOLOGIES, INC. ========================= MB-8500TAC-A (VER. 4) Processor CX M1/AM K5/Pentium Processor Speed 66/75/90/100/120/133/150/166/180/200MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS AMI Dimensions 275mm 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, PS/2 mouse interface, serial ports (2), IR connectors (2) NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+-----------+-----------------+-----------| | Serial port 1 | CN1 | Green PC | J8 pins | | | | connector | 17 & 18 | |------------------+-----------+-----------------+-----------| | Parallel port | CN2 | IDE interface | J8 pins | | | | LED | 20 & 21 | |------------------+-----------+-----------------+-----------| | Serial port 2 | CN3 | VCC ground | J8 pins | | | | connector | 25 & 26 | |------------------+-----------+-----------------+-----------| | Floppy drive | CN4 | PS/2 mouse port | J11 | | interface | | | | |------------------+-----------+-----------------+-----------| | IDE interface 2 | CN5 | IR connector | J12 | |------------------+-----------+-----------------+-----------| | IDE interface 1 | CN6 | IR connector | J12A | |------------------+-----------+-----------------+-----------| | Speaker | J8 pins 1 | PS/2 mouse | J13 | | | - 4 | interface | | |------------------+-----------+-----------------+-----------| | Power LED & | J8 pins 5 | Chassis fan | JP19 | | keylock | - 9 | power | | |------------------+-----------+-----------------+-----------| | Turbo LED | J8 pins | 32-bit PCI | PC1 - PC3 | | | 10 & 11 | slots | | |------------------+-----------+-----------------+-----------| | Reset switch | J8 pins | | | | | 12 & 13 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |-------------------------------------+-------+--------------| |>> | Factory configured - do not | JP2 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | CMOS memory normal operation | JP4 | Open | |---+---------------------------------+-------+--------------| | | CMOS memory clear | JP4 | Closed | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 12v | JP5 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 5v | JP5 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| | | BIOS type select EPROM | JP5 | Open | |---+---------------------------------+-------+--------------| | | Secondary IDE IRQ select IRQ15 | JP8 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| | | Secondary IDE IRQ select IRQ | JP8 | Pins 2 & 3 | | | through PCI | | closed | |---+---------------------------------+-------+--------------| | | Primary IDE IRQ14 enabled | JP9 | Closed | |---+---------------------------------+-------+--------------| | | Primary IDE IRQ14 disabled | JP9 | Open | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP12 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP13 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP22 | Pins 2 & 3 | | | alter | | closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP30 | Pins 1 & 2 | | | alter | | closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP32 | Unidentified | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 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 | |------------------------------------------------------------| | Note: Board accepts EDO memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |-------------+---------------+------------+-----------------| | 256KB (A) | None | (2) 32K x | None | | | | 32 | | |-------------+---------------+------------+-----------------| | 256KB (B) | (8) 32K x 8 | None | (1) 8K x 8 | |-------------+---------------+------------+-----------------| | 512KB (A) | (8) 64K x 8 | None | (1) 16K/32K x 8 | |-------------+---------------+------------+-----------------| | 512KB (B) | (8) 64K x 8 | None | (1) 16K x 8 | |------------------------------------------------------------| | Note: Board will either have asynchronous or synchronous | | cache installed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP10 | |-------------------------------+----------------------------| | None | Open | |-------------------------------+----------------------------| | 256KB (B) (STD/Aster TAG) | Open | |-------------------------------+----------------------------| | 512KB (A) (STD TAG) | Pins 1 & 2 closed | |-------------------------------+----------------------------| | 512KB (B) (Aster TAG) | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (CYRIX) | |------------------------------------------------------------| |CPU speed| Clock |Multiplier| JP6 | JP7 |JP15| JP16 |JP21 | | | speed | | | | | | | |---------+-------+----------+------+------+----+------+-----| | 120MHz | 50MHz | 2x | Open | Open |Open|Closed|1 & 2| |---------+-------+----------+------+------+----+------+-----| | 133MHz | 55MHz | 2x | Open |Closed|Open|Closed|1 & 2| |---------+-------+----------+------+------+----+------+-----| | 150MHz | 60MHz | 2x |Closed|Closed|Open|Closed|2 & 3| |---------+-------+----------+------+------+----+------+-----| | 166MHz | 66MHz | 2x |Closed| Open |Open|Closed|2 & 3| |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (AMD) | |------------------------------------------------------------| |CPU speed| Clock |Multiplier| JP6 | JP7 |JP15| JP16 |JP21 | | | speed | | | | | | | |---------+-------+----------+------+------+----+------+-----| | 75MHz | 66MHz | 1x |Closed| Open |Open|Closed|2 & 3| |---------+-------+----------+------+------+----+------+-----| | 75MHz | 50MHz | 1.5x | Open | Open |Open| Open |1 & 2| |---------+-------+----------+------+------+----+------+-----| | 90MHz | 55MHz | 1.5x | Open |Closed|Open| Open |2 & 3| |---------+-------+----------+------+------+----+------+-----| | 90MHz | 60MHz | 1.5x |Closed|Closed|Open| Open |2 & 3| |---------+-------+----------+------+------+----+------+-----| | 100MHz | 66MHz | 1.5x |Closed| Open |Open| Open |2 & 3| |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (INTEL) | |------------------------------------------------------------| | CPU | Clock |Multiplier| JP6 | JP7 | JP15 | JP16 |JP21 | | speed | speed | | | | | | | |-------+-------+----------+------+------+------+------+-----| | 75MHz | 50MHz | 1.5x | Open | Open | Open | Open |1 & 2| |-------+-------+----------+------+------+------+------+-----| | 90MHz | 60MHz | 1.5x |Closed|Closed| Open | Open |2 & 3| |-------+-------+----------+------+------+------+------+-----| |100MHz | 66MHz | 1.5x |Closed| Open | Open | Open |2 & 3| |-------+-------+----------+------+------+------+------+-----| |120MHz | 60MHz | 2x |Closed|Closed| Open |Closed|2 & 3| |-------+-------+----------+------+------+------+------+-----| |133MHz | 66MHz | 2x |Closed| Open | Open |Closed|2 & 3| |-------+-------+----------+------+------+------+------+-----| |150MHz | 60MHz | 2.5x |Closed|Closed|Closed|Closed|2 & 3| |-------+-------+----------+------+------+------+------+-----| |166MHz | 66MHz | 2.5x |Closed| Open |Closed|Closed|2 & 3| |-------+-------+----------+------+------+------+------+-----| |180MHz | 60MHz | 3x |Closed|Closed|Closed| Open |2 & 3| |-------+-------+----------+------+------+------+------+-----| |200MHz | 66MHz | 3x |Closed| Open |Closed| Open |2 & 3| |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | JP20 | JP23 | JP24 | |-------------+--------+---------------+---------------------| | CX M1 | Open | Pins 1 & 2, 4 | Pins 2 & 3, 4 & 5, | | | | & 5 closed | 7 & 8, 9 & 10 | | | | | closed | |-------------+--------+---------------+---------------------| | AM K5 | Open | Pins 1 & 2, 4 | Pins 2 & 3, 4 & 5, | | | | & 5 closed | 7 & 8, 9 & 10 | | | | | closed | |-------------+--------+---------------+---------------------| | P54C/CQS/CT | Open | Pins 1 & 2, 4 | Pins 2 & 3, 4 & 5, | | | | & 5 closed | 7 & 8, 9 & 10 | | | | | closed | |-------------+--------+---------------+---------------------| | P55C/CT | Closed | Pins 2 & 3, 5 | Pins 1 & 2, 3 & 4, | | | | & 6 closed | 6 & 7, 8 & 9 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION | |------------------------------------------------------------| | Voltage | JP27 | |-------------------------------+----------------------------| | 3.4v | Closed | |-------------------------------+----------------------------| | 3.5v | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 2 SELECTION | |------------------------------------------------------------| | Setting | JP35 | JP36 | |--------------------+-------------------+-------------------| | Used as COM2 | Pins 1 & 2 closed | Pins 1 & 2 closed | |--------------------+-------------------+-------------------| | Used as IR | Pins 2 & 3 closed | Pins 2 & 3 closed | | connector | | | +------------------------------------------------------------+