FIRST INTERNATIONAL COMPUTER, INC. ================================== 80486 (VER. 2) Processor CX486M6/80486SX/AM486DXLT/CX486M7/UMC U5/80486DX/ 80486DX2/80486DX4/SL80486DX4/P24D/P24T Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set C & T Video Chip None Set Maximum 64MB Onboard Memory Maximum None Video Memory Cache 64/128/256/512/1024KB BIOS AMI Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | External battery | JP1 | Reset switch | JP20 | |------------------+----------+-------------------+----------| | Power LED & | JP15 | Turbo switch | JP22 | | keylock | | | | |------------------+----------+-------------------+----------| | Speaker | JP18 | Green PC | JP23 | | | | connector | | |------------------+----------+-------------------+----------| | Turbo LED | JP19 | 32-bit VESA local | SL1 - | | | | bus slots | SL3 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |---------------------------------------+-------+------------| | | Battery type select internal | JP1 | Pins 2 & 3 | | | | | closed | |---+-----------------------------------+-------+------------| | | Battery type select external | JP1 | Closed | |---+-----------------------------------+-------+------------| | | CMOS memory clear | JP1 | Pins 3 & 4 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | JP2 | Open | |---+-----------------------------------+-------+------------| | | Flash BIOS voltage select 12v | JP3 | Pins 2 & 3 | | | | | closed | |---+-----------------------------------+-------+------------| | | Flash BIOS voltage select 5v | JP3 | Pins 1 & 2 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 1MB | (1) 256K x 36 | None | None | |------------+---------------+---------------+---------------| | 1MB | None | (1) 256K x 36 | None | |------------+---------------+---------------+---------------| | 2MB | (1) 256K x 36 | (1) 256K x 36 | None | |------------+---------------+---------------+---------------| | 2MB | None | (1) 256K x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 3MB | (1) 256K x 36 | (1) 256K x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 4MB | (1) 1M x 36 | None | None | |------------+---------------+---------------+---------------| | 4MB | None | (1) 1M x 36 | None | |------------+---------------+---------------+---------------| | 5MB | (1) 1M x 36 | (1) 256K x 36 | None | |------------+---------------+---------------+---------------| | 5MB | (1) 256K x 36 | (1) 1M x 36 | None | |------------+---------------+---------------+---------------| | 5MB | None | (1) 1M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 6MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 6MB | (1) 256K x 36 | (1) 1M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 6MB | (1) 1M x 36 | (1) 256K x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 8MB | (1) 2M x 36 | None | None | |------------+---------------+---------------+---------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | None | |------------+---------------+---------------+---------------| | 8MB | None | (1) 2M x 36 | None | |------------+---------------+---------------+---------------| | 9MB | (1) 2M x 36 | (1) 256K x 36 | None | |------------+---------------+---------------+---------------| | 9MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 9MB | (1) 1M x 36 | (1) 256K x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 9MB | None | (1) 2M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 9MB | (1) 1M x 36 | (1) 1M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 10MB | (1) 256K x 36 | (1) 2M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 12MB | (1) 2M x 36 | (1) 1M x 36 | None | |------------+---------------+---------------+---------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 13MB | (1) 256K x 36 | (1) 2M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 13MB | (1) 1M x 36 | (1) 2M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 16MB | (1) 4M x 36 | None | None | |------------+---------------+---------------+---------------| | 16MB | None | (1) 4M x 36 | None | |------------+---------------+---------------+---------------| | 16MB | (1) 1M x 36 | (1) 2M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 17MB | (1) 4M x 36 | (1) 256K x 36 | None | |------------+---------------+---------------+---------------| | 17MB | (1) 256K x 36 | (1) 4M x 36 | None | |------------+---------------+---------------+---------------| | 17MB | None | (1) 256K x 36 | (1) 4M x 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 17MB | (1) 256K x 36 | None | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 17MB | None | (1) 4M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 18MB | (1) 256K x 36 | (1) 256K x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 18MB | (1) 256K x 36 | (1) 4M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 18MB | (1) 4M x 36 | (1) 256K x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 20MB | (1) 4M x 36 | (1) 1M x 36 | None | |------------+---------------+---------------+---------------| | 20MB | (1) 1M x 36 | (1) 4M x 36 | None | |------------+---------------+---------------+---------------| | 20MB | None | (1) 1M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 21MB | (1) 256K x 36 | (1) 1M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 21MB | (1) 1M x 36 | (1) 256K x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 21MB | (1) 256K x 36 | (1) 4M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 21MB | (1) 4M x 36 | (1) 256K x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 21MB | (1) 1M x 36 | (1) 4M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 21MB | (1) 4M x 36 | (1) 1M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 24MB | (1) 2M x 36 | (1) 4M x 36 | None | |------------+---------------+---------------+---------------| | 24MB | None | (1) 2M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 24MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 25MB | (1) 256K x 36 | (1) 2M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 25MB | (1) 4M x 36 | (1) 2M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 28MB | (1) 4M x 36 | (1) 2M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 32MB | (1) 8M x 36 | None | None | |------------+---------------+---------------+---------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | None | |------------+---------------+---------------+---------------| | 32MB | None | (1) 8M x 36 | None | |------------+---------------+---------------+---------------| | 32MB | None | (1) 4M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 33MB | (1) 8M x 36 | (1) 256K x 36 | None | |------------+---------------+---------------+---------------| | 33MB | (1) 256K x 36 | (1) 8M x 36 | None | |------------+---------------+---------------+---------------| | 33MB | (1) 256K x 36 | (1) 4M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 33MB | (1) 4M x 36 | (1) 256K x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 33MB | None | (1) 8M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 33MB | (1) 4M x 36 | (1) 4M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 34MB | (1) 256K x 36 | (1) 8M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 36MB | (1) 8M x 36 | (1) 1M x 36 | None | |------------+---------------+---------------+---------------| | 36MB | (1) 1M x 36 | (1) 8M x 36 | None | |------------+---------------+---------------+---------------| | 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 36MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 37MB | (1) 256K x 36 | (1) 8M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 37MB | (1) 1M x 36 | (1) 8M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 40MB | (1) 2M x 36 | (1) 8M x 36 | None | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 40MB | (1) 4M x 36 | (1) 2M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 40MB | (1) 1M x 36 | (1) 8M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 48MB | (1) 4M x 36 | (1) 8M x 36 | None | |------------+---------------+---------------+---------------| | 48MB | (1) 8M x 36 | (1) 4M x 36 | None | |------------+---------------+---------------+---------------| | 48MB | None | (1) 8M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 49MB | (1) 256K x 36 | (1) 8M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 49MB | (1) 4M x 36 | (1) 8M x 36 | (4) 256K x 9 | |------------+---------------+---------------+---------------| | 52MB | (1) 1M x 36 | (1) 8M x 36 | (1) 4M x 9 | |------------+---------------+---------------+---------------| | 52MB | (1) 4M x 36 | (1) 8M x 36 | (1) 1M x 9 | |------------+---------------+---------------+---------------| | 64MB | (1) 8M x 36 | (1) 8M x 36 | None | |------------+---------------+---------------+---------------| | 64MB | (1) 4M x 36 | (1) 8M x 36 | (1) 4M x 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |-------------+---------------+---------------+--------------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | |-------------+---------------+---------------+--------------| | 128KB | (4) 32K x 8 | None | (1) 8K x 8 | |-------------+---------------+---------------+--------------| | 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 256KB (B) | (4) 64K x 8 | None | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 512KB (A) | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 512KB (B) | (4) 128K x 8 | None | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP5 | JP10 | JP11 | JP12 | JP13 | JP14 | |--------+-------+-------+--------+--------+--------+--------| | 64KB | 2 & 3 | 2 & 3 | Open | Open | Open | Open | |--------+-------+-------+--------+--------+--------+--------| | 128KB | 1 & 2 | 1 & 2 | Open | Open | Open | Closed | |--------+-------+-------+--------+--------+--------+--------| | 256KB | 2 & 3 | 2 & 3 | Open | Open | Closed | Closed | | (A) | | | | | | | |--------+-------+-------+--------+--------+--------+--------| | 256KB | 1 & | 1 & 2 | Open | Open | Closed | Closed | | (B) | 2, 3 | | | | | | | | & 4 | | | | | | |--------+-------+-------+--------+--------+--------+--------| | 512KB | 2 & | 2 & 3 | Open | Closed | Closed | Closed | | (A) | 3, 4 | | | | | | | | & 5 | | | | | | |--------+-------+-------+--------+--------+--------+--------| | 512KB | 1 & | 1 & 2 | Open | Closed | Closed | Closed | | (B) | 2, 3 | | | | | | | | & 4, | | | | | | | | 5 & 6 | | | | | | |--------+-------+-------+--------+--------+--------+--------| | 1MB | 2 & | 2 & 3 | Closed | Closed | Closed | Closed | | | 3, 4 | | | | | | | | & 5, | | | | | | | | 6 & 7 | | | | | | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | Speed | JP6 | JP7 | JP8 | |---------------+--------------+--------------+--------------| | 25MHz | Open | Open | Closed | |---------------+--------------+--------------+--------------| | 33MHz | Closed | Closed | Closed | |---------------+--------------+--------------+--------------| | 40MHz | Open | Closed | Closed | |---------------+--------------+--------------+--------------| | 50iMHz | Open | Open | Closed | |---------------+--------------+--------------+--------------| | 50MHz | Closed | Open | Open | |---------------+--------------+--------------+--------------| | 66iMHz | Closed | Closed | Closed | |---------------+--------------+--------------+--------------| | 75iMHz | Open | Open | Closed | |---------------+--------------+--------------+--------------| | 100iMHz | Closed | Closed | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | JP27 | JP28 | JP29 | |------------+--------------+----------------+---------------| | CX486M6 | 2 & 3, 4 & 5 | 1 & 2, 3 & 4, | 1 & 2, 3 & 4, | | | | 5 & 6 | 5 & 6 | |------------+--------------+----------------+---------------| | 80486SX | Open | 2 & 3 | Open | |------------+--------------+----------------+---------------| | AM486DXLT | Open | 2 & 3 | 2 & 3 | |------------+--------------+----------------+---------------| | CX486M7 | 2 & 3 | 1 & 2, 3 & 4, | 1 & 2, 3 & 4, | | | | 5 & 6 | 5 & 6 | |------------+--------------+----------------+---------------| | UMC U5 | Open | 2 & 3 | 2 & 3 | |------------+--------------+----------------+---------------| | 80486DX | Open | 2 & 3 | Open | |------------+--------------+----------------+---------------| | 80486DX2 | Open | 2 & 3 | Open | |------------+--------------+----------------+---------------| | 80486DX4 | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 | |------------+--------------+----------------+---------------| | SL80486DX4 | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 | |------------+--------------+----------------+---------------| | P24D | 1 & 2, 3 & 4 | 1 & 2, 4 & 5 | 1 & 2, 4 & 5 | |------------+--------------+----------------+---------------| | P24T | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION (CON'T) | |------------------------------------------------------------| | Type | JP30 | JP32 | JP33 | |------------+-----------------+--------------+--------------| | CX486M6 | 1 & 2, 3 & 4, 5 | Open | 2 & 3 | | | & 6 | | | |------------+-----------------+--------------+--------------| | 80486SX | Open | Open | 2 & 3 | |------------+-----------------+--------------+--------------| | AM486DXLT | 1 & 2 | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | CX486M7 | 2 & 3, 4 & 5 | 1 & 2 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | UMC U5 | 1 & 2 | 3 & 4 | 2 & 3 | |------------+-----------------+--------------+--------------| | 80486DX | Open | 1 & 2 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | 80486DX2 | Open | 1 & 2 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | 80486DX4 | 5 & 6 | 1 & 2 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | SL80486DX4 | 5 & 6 | 1 & 2 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | P24D | 3 & 4, 5 & 6 | 1 & 2 | 1 & 2, 3 & 4 | |------------+-----------------+--------------+--------------| | P24T | 5 & 6 | 2 & 3 | 1 & 2, 3 & 4 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU MULTIPLIER SELECTION (80486DX4 ONLY) | |------------------------------------------------------------| | Multiplier | JP31 | |----------------------------+-------------------------------| | 2x | Pins 2 & 3 closed | |----------------------------+-------------------------------| | 2.5x | Pins 1 & 2 closed | |----------------------------+-------------------------------| | 3x | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION | |------------------------------------------------------------| | Voltage | JP24 | JP25 | JP26 | |---------+----------------+----------------+----------------| | 3.3v | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | | | closed | closed | closed | |---------+----------------+----------------+----------------| | 5v | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VL BUS WAIT STATE SELECTION | |------------------------------------------------------------| | Setting | JP17 | |-------------------------------+----------------------------| | 0 | Open | |-------------------------------+----------------------------| | 1 | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VL-BUS SPEED SELECTION | |------------------------------------------------------------| | Setting | JP16 | |-------------------------------+----------------------------| | <= 33MHz | Open | |-------------------------------+----------------------------| | >33 MHz | Closed | +------------------------------------------------------------+