COMPUTREND SYSTEMS, INC. ======================== CONTAQ-386 (MS-3124) Processor AM386DX/C & T 386DX/80386DX/80486SX/80487SX/80486DX Processor 16/20/25/33/40/50MHz Speed Chip Set Unidentified Max. Onboard 32MB DRAM Cache 64/128/256KB BIOS Unidentified Dimensions 280mm x 225mm I/O Options None NPU Options 80387DX/3167 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |--------------+------------+--------------------+-----------| | Reset switch | J5 pins 1 | Power LED & | J5 pins | | | & 2 | keylock | 16 - 20 | |--------------+------------+--------------------+-----------| | Turbo switch | J5 pins 4 | External battery | JP2 | | | - 6 | | | |--------------+------------+--------------------+-----------| | Turbo LED | J5 pins 8 | Auxiliary keyboard | JP7 | | | & 9 | connector | | |--------------+------------+--------------------+-----------| | Speaker | J5 pins 11 | | | | | - 14 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+---------+-----------| |>> | Monitor type select color | JP1 | Closed | |---+----------------------------------+---------+-----------| | | Monitor type select monochrome | JP1 | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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) 256K x 9 | (4) 1M 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | T 0 | T 1 | |--------+-------------+------------+------------+-----------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | (1) 16K x | | | | | | 4 | |--------+-------------+------------+------------+-----------| | 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | (1) 16K x | | | | | | 4 | |--------+-------------+------------+------------+-----------| | 256KB | (4) 32K x 8 | (4) 32K x | (1) 32K x | (1) 16K x | | | | 8 | 8 | 4 | |------------------------------------------------------------| | Note: 128KB is not available when the 80486 board is | | installed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | J4A | J4B | J4C | |------------+---------------+---------------+---------------| | 64KB | Installed | Not installed | Not installed | |------------+---------------+---------------+---------------| | 128KB | Not installed | Installed | Not installed | |------------+---------------+---------------+---------------| | 256KB | Not installed | Not installed | Installed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | J3A | J3B | J6A | J6B |JP5 | JP8 | |------+----------+---------+---------+---------+----+-------| |80386 |Installed | Not |Installed| Not |2 & | Open | | | |installed| |installed| 3 | | |------+----------+---------+---------+---------+----+-------| |80486 | Not |Installed| Not |Installed|1 & |Closed | | |installed | |installed| | 2 | | |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | |80486 is located on external card. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU BUS CLOCK CONFIGURATION | |------------------------------------------------------------| | CPU | CLK | JP3 | JP4 | JP6 | |---------+----------+---------+---------+-------------------| | 80386 | CLK2/10 | Open | Open | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80386 | CLK2/8 | Closed | Open | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80386 | CLK2/6 | Open | Closed | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80386 | CLK2/4 | Closed | Closed | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80386 | 7.2MHz | Open | Open | pins 2 & 3 closed | |---------+----------+---------+---------+-------------------| | 80486 | CLK2/4 | Closed | Open | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80486 | CLK2/3 | Open | Closed | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80486 | CLK2/6 | Closed | Closed | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 80486 | 7.2MHz | Open | Open | pins 2 & 3 closed | +------------------------------------------------------------+