BIOSTAR MICROTECH INTERNATIONAL CORPORATION =========================================== MB-1433/1440/1450 UCV-A Processor CX486S/80486SX/80487SX/AMD80486DX/80486DX/ODP486SX/80486DX2/ Pentium Overdrive Processor 20/25/33/40(internal)/50(internal)/50/66(internal)MHz Speed Chip Set VLSI Max. 64MB Onboard DRAM Cache 32/64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O 32-bit VESA local bus slots (3) Options NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------+----------+----------------------+----------| | Speaker | J1 | Turbo switch | J5 | |---------------+----------+----------------------+----------| | Power LED & | J2 | 5v DC ground | J6 | | keylock | | | | |---------------+----------+----------------------+----------| | Turbo LED | J3 | External battery | JP8 | |---------------+----------+----------------------+----------| | Reset switch | J4 | 32-bit VESA Local | SL1, | | | | bus slots | SL2, SL3 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |------------------------------------+----------+------------| |>> | CMOS memory normal operation | JP8 | pins 2 & 3 | | | | | closed | |----+-------------------------------+----------+------------| | | CMOS memory clear | JP8 | pins 3 & 4 | | | | | closed | |----+-------------------------------+----------+------------| |>> | Power good signal detect from | JP11 | pins 1 & 2 | | | power supply | | closed | |----+-------------------------------+----------+------------| | | Power good signal detect from | JP11 | pins 2 & 3 | | | board | | closed | |----+-------------------------------+----------+------------| |>> | CPU type select PGA or PQFP | JP12 | pins 2 & 3 | | | on board | | closed | |----+-------------------------------+----------+------------| | | CPU type select PQFP and PGA | JP12 | pins 1 & 2 | | | on board - disables PQFP | | closed | |----+-------------------------------+----------+------------| |>> | Monitor type select | JP14 | pins 1 & 2 | | | monochrome | | closed | |----+-------------------------------+----------+------------| | | Monitor type select color | JP14 | pins 2 & 3 | | | | | closed | |----+-------------------------------+----------+------------| |>> | Weitek Power 9000 VGA card | JP28 | pins 1 & 2 | | | not installed | | closed | |----+-------------------------------+----------+------------| | | Weitek Power 9000 VGA card | JP28 | pins 2 & 3 | | | installed | | closed | |------------------------------------------------------------| | Note: External battery and CMOS memory configuration share | | the same jumper. Pins 2 & 3 on JP8 must be closed in order | | for system to function This is done with either a jumper | | or external battery installed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 1MB | (4) 256K x 9 | NONE | |------------------+--------------------+--------------------| | 2MB | (4) 256K x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 4MB | (4) 1M x 9 | NONE | |------------------+--------------------+--------------------| | 5MB | (4) 1M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 8MB | (4) 1M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 16MB | (4) 4M x 9 | NONE | |------------------+--------------------+--------------------| | 17MB | (4) 4M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 20MB | (4) 4M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 32MB | (4) 4M x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 64MB | (4) 16M x 9 | NONE | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |------------+---------------+---------------+---------------| | 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP5 | JP6 | JP7 | JP9 | JP10 | |----------+----------+---------+---------+---------+--------| | 32KB | 2 & 3 | Open | Open | Open | Open | |----------+----------+---------+---------+---------+--------| | 64KB | 1 & 2 | Open | Open | Closed | Open | |----------+----------+---------+---------+---------+--------| | 128KB | 2 & 3 | 2 & 3 | Closed | Closed | Open | |----------+----------+---------+---------+---------+--------| | 256KB | 1 & 2 | 1 & 2 | Closed | Closed | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP16 | JP17 | |--------------------+-------------------+-------------------| | 80486SX/CX486S | pins 1 & 2 closed | pins 2 & 3 closed | |--------------------+-------------------+-------------------| | 80487SX/ODP80486SX | pins 2 & 3 closed | pins 1 & 2, 3 & 4 | | | | closed | |--------------------+-------------------+-------------------| | 80486DX/DX2 | pins 1 & 2 closed | pins 1 & 2, 3 & 4 | | | | closed | |--------------------+-------------------+-------------------| | Pentium Overdrive | pins 1 & 2 closed | pins 1 & 2, 3 & 4 | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | JP21 | JP22 | JP23 | JP27 | |------------+-----------+-----------+-----------+-----------| | 25MHz | Closed | Open | Closed | Open | |------------+-----------+-----------+-----------+-----------| | 33MHz | Closed | Closed | Open | Open | |------------+-----------+-----------+-----------+-----------| | 40MHz | Open | Open | Closed | Closed | |------------+-----------+-----------+-----------+-----------| | 50MHz | Open | Closed | Open | Closed | |------------+-----------+-----------+-----------+-----------| | 50iMHz | Closed | Open | Closed | Open | |------------+-----------+-----------+-----------+-----------| | 66iMHz | Closed | Closed | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA CLOCK CONFIGURATION | |------------------------------------------------------------| | Mode | JP25 | JP26 | JP29 | JP30 | | | (SL2) | (SL1) | (SL3) | (SL2 & | | | | | | SL3) | |--------------+-----------+-----------+----------+----------| | Synchronous | pins 1 & | pins 1 & | pins 1 & | pins 1 & | | | 2 closed | 2 closed | 2 closed | 2 closed | |--------------+-----------+-----------+----------+----------| | Asynchronous | pins 2 & | pins 2 & | pins 2 & | pins 2 & | | | 3 closed | 3 closed | 3 closed | 3 closed | |------------------------------------------------------------| | Note: If pins 1 & 2 are closed on JP30, JP25 must remain | | open. | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA BUS SPEED CONFIGURATION | |------------------------------------------------------------| | Mode | JP19 | JP20 | |--------------+------------------------+--------------------| | Synchronous | pins 2 & 3 closed | pins 1 & 2 closed | |--------------+------------------------+--------------------| | Asynchronous | pins 1 & 2 closed | pins 2 & 3 closed | | | (40MHz/50MHz only) | (50MHz only) | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA BUS CONFIGURATION (CIRRUS LOGIC VER. AB) | |------------------------------------------------------------| | Mode | JP19 | JP20 | |----------+---------------------------+---------------------| | 25MHz | pins 2 & 3 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 33MHz | pins 2 & 3 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 40MHz | pins 1 & 2 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 50MHz | pins 1 & 2 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 50iMHz | pins 2 & 3 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 66iMHz | pins 2 & 3 closed | pins 1 & 2 closed | |------------------------------------------------------------| | Note: These settings are used only if a Cirrus Logic | | version AB video card is installed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA BUS CONFIGURATION (CIRRUS LOGIC VER. AC) | |------------------------------------------------------------| | Mode | JP19 | JP20 | |----------+---------------------------+---------------------| | 25MHz | pins 2 & 3 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 33MHz | pins 2 & 3 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 40MHz | pins 1 & 2 closed | pins 2 & 3 closed | |----------+---------------------------+---------------------| | 50MHz | pins 1 & 2 closed | pins 2 & 3 closed | |----------+---------------------------+---------------------| | 50iMHz | pins 2 & 3 closed | pins 1 & 2 closed | |----------+---------------------------+---------------------| | 66iMHz | pins 2 & 3 closed | pins 1 & 2 closed | |------------------------------------------------------------| | Note: These settings are used only if a Cirrus Logic | | version AC video card is installed. | +------------------------------------------------------------+