UNITRON COMPUTER, INC. ====================== 3486 SYSTEM TYPE 16 Processor 80386SX/CX486SLC Processor 16/20/25/33MHz Speed Chip Set OPTI Max. Onboard 16MB DRAM Cache None BIOS Phoenix Dimensions 254mm x 218mm I/O Options Floppy drive interface, game port, IDE interface, parallel port, serial ports (2), VGA port NPU Options 80387SX +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |----------------+----------+---------------------+----------| | Game port | CN1 | IDE interface | J23 | |----------------+----------+---------------------+----------| | VGA port | CN2 | IDE interface LED | J24 | |----------------+----------+---------------------+----------| | Parallel port | CN3 | Turbo LED | J26 | |----------------+----------+---------------------+----------| | Serial port 2 | CN4 | Turbo LED | J30 | |----------------+----------+---------------------+----------| | Serial port 1 | CN5 | Power LED & keylock | J31 | |----------------+----------+---------------------+----------| | Chassis fan | J13 | Floppy drive | J32 | | power | | interface | | |----------------+----------+---------------------+----------| | Reset switch | J14 | Riser Card | SL1 | |----------------+----------+---------------------+----------| | Speaker | J21 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | Hard drive installed | J1 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | Hard drive not installed | J1 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Serial port B enabled | J3 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Serial port B disabled | J3 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Game port enabled | J4 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Game port disabled | J4 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Parallel port enabled | J7 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Parallel port disabled | J7 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Serial port A enabled | J8 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Serial port A disabled | J8 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Parallel port select LPT1 | J9 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Parallel port select LPT2 | J9 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Monitor type select color | J11 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Monitor type select monochrome | J11 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Display type select non | J15 | Open | | | interlaced | | | |---+----------------------------------+--------+------------| | | Display type select intrlaced | J15 | Closed | |---+----------------------------------+--------+------------| |>> | NPU synchronous with CPU | J16 | Open | |---+----------------------------------+--------+------------| | | NPU asynchronous with CPU | J16 | Closed | |---+----------------------------------+--------+------------| |>> | Floppy drive interface enabled | J25 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Floppy drive interface disabled | J25 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | IDE interface enabled | J27 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | IDE interface disabled | J27 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Turbo LED enabled on J26 (System | J29 | pins 1 & 2 | | | M) | | closed | |---+----------------------------------+--------+------------| | | Floppy drive LED enabled on J26 | J29 | pins 2 & 3 | | | (System B; open J30) | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |-------+-------------+------------+------------+------------| | 512KB | (2) 256K x | NONE | NONE | NONE | | | 9 | | | | |-------+-------------+------------+------------+------------| | 1MB | (2) 256K x | (2) 256K x | NONE | NONE | | | 9 | 9 | | | |-------+-------------+------------+------------+------------| | 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x | | | 9 | 9 | 9 | 9 | |-------+-------------+------------+------------+------------| | 2MB | (2) 1M x 9 | NONE | NONE | NONE | |-------+-------------+------------+------------+------------| | 3MB | (2) 256K x | (2) 1M x 9 | (2) 256K x | NONE | | | 9 | | 9 | | |-------+-------------+------------+------------+------------| | 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+------------+-------------+------------| | 5MB | (2) 256K x | (2) 1M x 9 | (2) 256K x | (2) 1M x 9 | | | 9 | | 9 | | |------+-------------+------------+-------------+------------| | 6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE | |------+-------------+------------+-------------+------------| | 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | |------+-------------+------------+-------------+------------| | 8MB | (2) 4M x 9 | NONE | NONE | NONE | |------+-------------+------------+-------------+------------| | 12MB | (2) 1M x 9 | (2) 4M x 9 | (2) 1M x 9 | NONE | |------+-------------+------------+-------------+------------| | 16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | J28 | |--------------------------+---------------------------------| | 80386SX | Open | |--------------------------+---------------------------------| | 80486SLC | pins 1 & 2, 3 & 4, 5 & 6 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | J35 | J38 | |------------------+--------------------+--------------------| | 16MHz | pins 1 & 2 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 20MHz | pins 1 & 2 closed | pins 2 & 3 closed | |------------------+--------------------+--------------------| | 25MHz | pins 2 & 3 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 33MHz | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOPPY DRIVE CONFIGURATION | |------------------------------------------------------------| | Type | J17 | J18 | J19 | J20 | |-----------+------------+-----------+-----------+-----------| | System B | pins 1 & 2 | pins 1 & | pins 1 & | pins 1 & | | | closed | 2 closed | 2 closed | 2 closed | |-----------+------------+-----------+-----------+-----------| | System M | pins 2 & 3 | pins 2 & | pins 2 & | pins 2 & | | | closed | 3 closed | 3 closed | 3 closed | |------------------------------------------------------------| | Note: System B- drive B has twisted cable; drive A | | has straight cable. System M- drive B has straight | | cable; drive A has twisted cable | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT CONFIGURATION | |------------------------------------------------------------| | Port 1 | J10 | |----------------------------+-------------------------------| | COM1 | pins 1 & 2 closed | |----------------------------+-------------------------------| | COM3 | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT CONFIGURATION | |------------------------------------------------------------| | Port 2 | J2 | |----------------------------+-------------------------------| | COM2 | pins 1 & 2 closed | |----------------------------+-------------------------------| | COM4 | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |--------+------------+------------+------------+------------| | 256KB | (2) 44256 | NONE | NONE | NONE | |--------+------------+------------+------------+------------| | 512KB | (2) 44256 | (2) 44256 | NONE | NONE | |--------+------------+------------+------------+------------| | 1MB | (2) 44256 | (2) 44256 | (2) 44256 | (2) 44256 | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON BOARD VGA CONFIGURATION | |------------------------------------------------------------| | Setting | J36 | J37 | |--------------------+-------------------+-------------------| | Enabled | Closed | Closed | |--------------------+-------------------+-------------------| | Disabled | Open | Open | +------------------------------------------------------------+