MICRONICS COMPUTERS, INC. ========================= 80486 ASIC SYSTEM BOARD Processor 80486DX Processor Speed 33MHz Chip Set Micronics Max. Onboard DRAM 64MB Cache 64/128/256KB BIOS Phoenix Dimensions 330mm x 218mm I/O Options None NPU Options 4167 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-----------------------+----------+--------------+----------| | External battery | J13 | Turbo LED | W9 | | connector | | | | |-----------------------+----------+--------------+----------| | Speaker | J30 | Reset switch | W10 | |-----------------------+----------+--------------+----------| | Keylock | J31 | Turbo switch | W11 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper/Switch | Position | |---------------------------------+---------------+----------| |>> | Factory configured-do not | SW1/1 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | Factory configured-do not | SW1/2 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | Factory configured-do not | SW1/3 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | Factory configured-do not | SW1/4 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | Factory configured-do not | SW1/5 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | Factory configured-do not | SW1/6 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | Video BIOS cacheable | SW1/7 | Off | |---+-----------------------------+---------------+----------| | | Video BIOS not cacheable | SW1/7 | On | |---+-----------------------------+---------------+----------| |>> | Factory configured-do not | SW1/8 | Off | | | alter | | | |---+-----------------------------+---------------+----------| |>> | 70ns DRAM select | SW2/6 | Off | |---+-----------------------------+---------------+----------| | | 80ns DRAM select | SW2/6 | On | |---+-----------------------------+---------------+----------| | | 64KB or 256KB cache select | SW2/7 | Off | |---+-----------------------------+---------------+----------| | | 128KB cache select | SW2/7 | On | |---+-----------------------------+---------------+----------| | | 64KB cache select | SW2/8 | Off | |---+-----------------------------+---------------+----------| | | 128KB or 256KB cache select | SW2/8 | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | |------------------+--------------------+--------------------| | 128KB | (4) 32K x 8 | None | |------------------+--------------------+--------------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | W5 | W6 | |--------------------+-------------------+-------------------| | 128KB or 256KB | Closed | N/A | |--------------------+-------------------+-------------------| | 64KB | Open | N/A | |--------------------+-------------------+-------------------| | 256KB | N/A | Closed | |--------------------+-------------------+-------------------| | 64KB or 128KB | N/A | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+---------------+-------------+-----------+-----------| | 1MB | (4) 256KB x 9 | NONE | NONE | NONE | |------+---------------+-------------+-----------+-----------| | 2MB | (4) 256KB x 9 | (4) 256KB x | NONE | NONE | | | | 9 | | | |------+---------------+-------------+-----------+-----------| | 3MB | (4) 256KB x 9 | (4) 256KB x | (4) 256KB | NONE | | | | 9 | x 9 | | |------+---------------+-------------+-----------+-----------| | 4MB | (4) 256KB x 9 | (4) 256KB x | (4) 256KB | (4) 256KB | | | | 9 | x 9 | x 9 | |------+---------------+-------------+-----------+-----------| | 4MB | (4) 1MB X 9 | NONE | NONE | NONE | |------+---------------+-------------+-----------+-----------| | 5MB | (4) 256KB x 9 | (4) 1MB x 9 | NONE | NONE | |------+---------------+-------------+-----------+-----------| | 6MB | (4) 256KB x 9 | (4) 256KB x | (4) 1MB x | NONE | | | | 9 | 9 | | |------+---------------+-------------+-----------+-----------| | 7MB | (4) 256KB x 9 | (4) 256KB x | (4) 256KB | (4) 1MB x | | | | 9 | x 9 | 9 | |------+---------------+-------------+-----------+-----------| | 8MB | (4) 1MB x 9 | (4) 1MB x 9 | NONE | NONE | |------+---------------+-------------+-----------+-----------| | 9MB | (4) 256KB x 9 | (4) 1MB x 9 | (4) 1MB x | NONE | | | | | 9 | | |------+---------------+-------------+-----------+-----------| | 10MB | (4) 256KB x 9 | (4) 256KB x | (4) 1MB x | (4) 1MB x | | | | 9 | 9 | 9 | |------+---------------+-------------+-----------+-----------| | 12MB | (4) 1MB x 9 | (4) 1MB x 9 | (4) 1MB x | NONE | | | | | 9 | | |------+---------------+-------------+-----------+-----------| | 13MB | (4) 256KB x 9 | (4) 1MB x 9 | (4) 1MB x | (4) 1MB x | | | | | 9 | 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CONTINUED) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 16MB | (4) 1MB x 9 | (4) 1MB x 9 | (4) 1MB x | (4) 1MB x | | | | | 9 | 9 | |------+-------------+-------------+------------+------------| | 16MB | (4) 4MB x 9 | NONE | NONE | NONE | |------+-------------+-------------+------------+------------| | 20MB | (4) 1MB x 9 | (4) 4MB x 9 | NONE | NONE | |------+-------------+-------------+------------+------------| | 24MB | (4) 1MB x 9 | (4) 1MB x 9 | (4) 4MB x | NONE | | | | | 9 | | |------+-------------+-------------+------------+------------| | 28MB | (4) 1MB x 9 | (4) 1MB x 9 | (4) 1MB x | (4) 4MB x | | | | | 9 | 9 | |------+-------------+-------------+------------+------------| | 32MB | (4) 4MB x 9 | (4) 4MB x 9 | NONE | NONE | |------+-------------+-------------+------------+------------| | 36MB | (4) 1MB x 9 | (4) 4MB x 9 | (4) 4MB x | NONE | | | | | 9 | | |------+-------------+-------------+------------+------------| | 40MB | (4) 1MB x 9 | (4) 1MB x 9 | (4) 4MB x | (4) 4MB x | | | | | 9 | 9 | |------+-------------+-------------+------------+------------| | 48MB | (4) 4MB x 9 | (4) 4MB x 9 | (4) 4MB x | NONE | | | | | 9 | | |------+-------------+-------------+------------+------------| | 52MB | (4) 1MB x 9 | (4) 4MB x 9 | (4) 4MB x | (4) 4MB x | | | | | 9 | 9 | |------+-------------+-------------+------------+------------| | 64MB | (4) 4MB x 9 | (4) 4MB x 9 | (4) 4MB x | (4) 4MB x | | | | | 9 | 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM SWITCH CONFIGURATION | |------------------------------------------------------------| | Size | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | |---------+----------+---------+---------+---------+---------| | 1MB | On | On | On | On | On | |---------+----------+---------+---------+---------+---------| | 2MB | Off | On | On | On | On | |---------+----------+---------+---------+---------+---------| | 3MB | On | Off | On | On | On | |---------+----------+---------+---------+---------+---------| | 4MB | Off | Off | On | On | On | |---------+----------+---------+---------+---------+---------| | 4MB | On | On | Off | On | On | |---------+----------+---------+---------+---------+---------| | 5MB | On | On | Off | On | On | |---------+----------+---------+---------+---------+---------| | 6MB | On | Off | On | Off | On | |---------+----------+---------+---------+---------+---------| | 7MB | Off | On | On | Off | On | |---------+----------+---------+---------+---------+---------| | 8MB | Off | On | Off | On | On | |---------+----------+---------+---------+---------+---------| | 9MB | On | Off | Off | Off | On | |---------+----------+---------+---------+---------+---------| | 10MB | Off | Off | On | Off | On | |---------+----------+---------+---------+---------+---------| | 12MB | On | Off | Off | On | On | |---------+----------+---------+---------+---------+---------| | 13MB | Off | Off | Off | Off | On | |---------+----------+---------+---------+---------+---------| | 16MB | Off | Off | Off | On | On | |---------+----------+---------+---------+---------+---------| | 16MB | On | On | Off | On | Off | |---------+----------+---------+---------+---------+---------| | 20MB | On | On | Off | Off | Off | |---------+----------+---------+---------+---------+---------| | 24MB | On | Off | On | Off | Off | |---------+----------+---------+---------+---------+---------| | 28MB | Off | On | On | Off | Off | |---------+----------+---------+---------+---------+---------| | 32MB | Off | On | Off | On | Off | |---------+----------+---------+---------+---------+---------| | 36MB | On | Off | Off | Off | Off | |---------+----------+---------+---------+---------+---------| | 40MB | Off | Off | On | Off | Off | |---------+----------+---------+---------+---------+---------| | 48MB | On | Off | Off | On | Off | |---------+----------+---------+---------+---------+---------| | 52MB | Off | Off | Off | Off | Off | |---------+----------+---------+---------+---------+---------| | 64MB | Off | Off | Off | On | Off | +------------------------------------------------------------+