BIOSTAR MICROTECH INTERNATIONAL CORPORATION =========================================== 286 SYSTEM BOARD Processor 80286 Processor Speed 10/12MHz Chip Set VLSI Max. Onboard DRAM 4MB Cache None BIOS AMI/Award/Phoenix Dimensions 330mm x 218mm I/O Options None NPU Options 80287 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------------+----------+----------------+----------| | Power LED & keylock | KLCK | Turbo LED | TBLED | |---------------------+----------+----------------+----------| | Reset switch | RST | Turbo switch | TBSW | |---------------------+----------+----------------+----------| | Speaker | SPK | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Location | |-------------------------------------+--------+-------------| |>> | BIOS type select 27128 | JP1 | pins 2 & 3 | | | | | closed | |---+---------------------------------+--------+-------------| | | BIOS type select 27256 | JP1 | pins 1 & 2 | | | | | closed | |---+---------------------------------+--------+-------------| |>> | CPU slow speed select 8MHz | JP6 | Closed | |---+---------------------------------+--------+-------------| | | CPU slow speed select 6MHz | JP6 | Open | |---+---------------------------------+--------+-------------| |>> | Monitor type select color | JP7 | Closed | |---+---------------------------------+--------+-------------| | | Monitor type select monochrome | JP7 | Open | |---+---------------------------------+--------+-------------| |>> | DRAM speed select 0 wait states | JP8 | Closed | |---+---------------------------------+--------+-------------| | | DRAM speed select 1 wait state | JP8 | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size |Bank 0 |Bank 1 | P-1 |Bank 2 | P-2 | Bank 3 |Bank | | | | | | | | | 4 | |-------+-------+-------+------+-------+------+--------+-----| |512KB 1| (18) | NONE | NONE | NONE | NONE | NONE |NONE | | | 41256 | | | | | | | |-------+-------+-------+------+-------+------+--------+-----| |512KB 1| NONE | (4) | (2) | NONE | NONE | NONE |NONE | | | | 44256 |41256 | | | | | |-------+-------+-------+------+-------+------+--------+-----| |512KB 2| NONE | NONE | NONE | NONE | NONE |(2) 256K|NONE | | | | | | | | x 9 | | |-------+-------+-------+------+-------+------+--------+-----| |640KB 1| (18) | NONE | NONE | (4) | (2) | NONE |NONE | | | 41256 | | | 4464 | 4164 | | | |-------+-------+-------+------+-------+------+--------+-----| |640KB 1| NONE | (4) | (2) | (4) | (2) | NONE |NONE | | | | 44256 |41256 | 4464 | 4164 | | | |-------+-------+-------+------+-------+------+--------+-----| |640KB 2| (18) | NONE | NONE | NONE | NONE |(2) 256K|NONE | | | 4164 | | | | | x 9 | | |-------+-------+-------+------+-------+------+--------+-----| |640KB 2| NONE | NONE | NONE | (4) | (2) |(2) 256K|NONE | | | | | | 4464 | 4164 | x 9 | | |-------+-------+-------+------+-------+------+--------+-----| | 1MB 1 | (18) | NONE | NONE | (2) | (4) | NONE |NONE | | | 41256 | | | 44256 |41256 | | | |-------+-------+-------+------+-------+------+--------+-----| | 1MB 1 | (18) | (4) | (2) | NONE | NONE | NONE |NONE | | | 41256 | 44256 |41256 | | | | | |-------+-------+-------+------+-------+------+--------+-----| | 1MB 2 | NONE | NONE | NONE | NONE | NONE |(2) 256K| (2) | | | | | | | | x 9 |256K | | | | | | | | | x 9 | |-------+-------+-------+------+-------+------+--------+-----| | 2MB 1 | (18) | NONE | NONE | NONE | NONE | NONE |NONE | | |411000 | | | | | | | |-------+-------+-------+------+-------+------+--------+-----| | 2MB 2 | NONE | NONE | NONE | NONE | NONE |(2) 1M x|NONE | | | | | | | | 9 | | |-------+-------+-------+------+-------+------+--------+-----| | 4MB 1 | (18) | NONE | NONE | NONE | NONE |(2) 1M x|NONE | | |411000 | | | | | 9 | | |-------+-------+-------+------+-------+------+--------+-----| | 4MB 2 | NONE | NONE | NONE | NONE | NONE |(2) 1M x| (2) | | | | | | | | 9 |1M x | | | | | | | | | 9 | |------------------------------------------------------------| |Note 1 :Set JP9, JP10, and JP11 pins 2 & 3 closed. | | | |Note 2 :Set JP9, JP10, and JP11 pins 1 & 2 closed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP2 | JP3 | JP4 | |--------------+---------------+--------------+--------------| | 512KB | Closed | Closed | Closed | |--------------+---------------+--------------+--------------| | 640KB | Closed | Closed | Open | |--------------+---------------+--------------+--------------| | 1MB | Closed | Open | Closed | |--------------+---------------+--------------+--------------| | 2MB | Closed | Open | Open | |--------------+---------------+--------------+--------------| | 4MB | Open | Closed | Closed | +------------------------------------------------------------+