AST RESEARCH, INC. ================== ADVANTAGE PLUS! SERIES 486 (MT) (202528-101) Processor 80486SX/80487SX/ODP486/ODPR486/80486DX/80486DX2/P24T Processor 25/33/50(internal)/66(internal)MHz Speed Chip Set Unidentified Max. 64MB Onboard DRAM Cache 64/256KB BIOS AST Dimensions 355mm x 305mm I/O Floppy drive interface, IDE interface, parallel Options port, PS/2 mouse port, serial ports (2), 8514 video pass through connector, VGA port NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-----------------+----------+--------------------+----------| | VGA port | CN1 | Reset switch | E3 | |-----------------+----------+--------------------+----------| | Serial port | CN2 | IDE interface LED | E4 | |-----------------+----------+--------------------+----------| | Serial port | CN3 | 8514 video pass | J19 | | | | through connector | | |-----------------+----------+--------------------+----------| | PS/2 mouse port | CN4 | IDE interface | J22 | |-----------------+----------+--------------------+----------| | Parallel port | CN5 | Floppy drive | J24 | | | | interface | | |-----------------+----------+--------------------+----------| | Power LED | E1 | Chassis fan power | J28 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper/Switch | Position | |-------------------------------+---------------+------------| |>> | CMOS memory normal | E5 | Open | | | operation | | | |---+---------------------------+---------------+------------| | | CMOS memory clear | E5 | Closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | E14 | Pins 1 & 2 | | | not alter | | closed | |---+---------------------------+---------------+------------| |>> | Parallel port IRQ select | E15 | Pins 1 & 2 | | | IRQ7 | | closed | |---+---------------------------+---------------+------------| | | Parallel port IRQ select | E15 | Pins 2 & 3 | | | IRQ5 | | closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | E800 | Pins 2 & 3 | | | not alter | | closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | E801 | Pins 1 & 2 | | | not alter | | closed | |---+---------------------------+---------------+------------| |>> | Monitor power | E802 | Pins 2 & 3 | | | conservation disabled | | closed | |---+---------------------------+---------------+------------| | | Monitor power | E802 | Pins 1 & 2 | | | conservation enabled | | closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | E803 | Pins 1 & 2 | | | not alter | | closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | E804 | Pins 1 & 2 | | | not alter | | closed | |---+---------------------------+---------------+------------| |>> | On board video enabled | SW1/1 | Off | |---+---------------------------+---------------+------------| | | On board video disabled | SW1/1 | On | |---+---------------------------+---------------+------------| |>> | Factory configured - do | SW1/2 | Off | | | not alter | | | |---+---------------------------+---------------+------------| |>> | Flash BIOS normal | SW1/3 | Off | | | operation | | | |---+---------------------------+---------------+------------| | | Flash BIOS force update | SW1/3 | On | | | at boot | | | |---+---------------------------+---------------+------------| |>> | Password enabled | SW1/4 | Off | |---+---------------------------+---------------+------------| | | Password disabled | SW1/4 | On | |---+---------------------------+---------------+------------| |>> | Monitor type select color | SW1/5 | On | |---+---------------------------+---------------+------------| | | Monitor type select | SW1/5 | Off | | | monochrome | | | |---+---------------------------+---------------+------------| |>> | Factory configured - do | SW1/6 | Off | | | not alter | | | |---+---------------------------+---------------+------------| |>> | Factory configured - do | SW1/7 | Off | | | not alter | | | |---+---------------------------+---------------+------------| |>> | Setup access enabled | SW1/8 | Off | |---+---------------------------+---------------+------------| | | Setup access disabled | SW1/8 | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+--------------+------------+------------+------------| | 1MB | (1) 256K x | None | None | None | | | 36 | | | | |------+--------------+------------+------------+------------| | 2MB | (1) 256K x | (1) 256K x | None | None | | | 36 | 36 | | | |------+--------------+------------+------------+------------| | 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None | | | 36 | 36 | 36 | | |------+--------------+------------+------------+------------| | 4MB | (1) 1M x 36 | None | None | None | |------+--------------+------------+------------+------------| | 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x | | | 36 | 36 | 36 | 36 | |------+--------------+------------+------------+------------| | 5MB | (1) 1M x 36 | (1) 256K x | None | None | | | | 36 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None | |------+-------------+-------------+------------+------------| | 9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 13MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 16MB | (1) 4M x 36 | None | None | None | |------+-------------+-------------+------------+------------| | 17MB | (1) 4M x 36 | (1) 256K x | None | None | | | | 36 | | | |------+-------------+-------------+------------+------------| | 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | None | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None | |------+-------------+-------------+------------+------------| | 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None | |------+-------------+-------------+------------+------------| | 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 37MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 49MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | TAG | |------------------+--------------------+--------------------| | 64KB | (8) 8K x 8 | (1) 8K x 9 | |------------------+--------------------+--------------------| | 256KB | (8) 32K x 8 | (1) 32K x 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | E6 | E7 | E8 | |------------+-------------------+-------------+-------------| | None | Pins 1 & 2 closed | Open | Open | |------------+-------------------+-------------+-------------| | 64KB | Pins 1 & 2 closed | Open | Open | |------------+-------------------+-------------+-------------| | 256KB | Pins 2 & 3 closed | Closed | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | E9 | E10 | E11 | E12 | E13 | |-----------+---------+---------+---------+---------+--------| | 80486SX | Open | 2 & 3 | 1 & 2 | Open | 2 & 3 | |-----------+---------+---------+---------+---------+--------| | 80487SX | 1 & 2 | 1 & 2 | 2 & 3 | Closed | 2 & 3 | |-----------+---------+---------+---------+---------+--------| | ODP486 | 1 & 2 | 1 & 2 | 2 & 3 | Closed | 2 & 3 | |-----------+---------+---------+---------+---------+--------| | ODPR486 | 2 & 3 | 1 & 2 | 1 & 2 | Closed | 2 & 3 | |-----------+---------+---------+---------+---------+--------| | 80486DX | 2 & 3 | 1 & 2 | 1 & 2 | Closed | 2 & 3 | |-----------+---------+---------+---------+---------+--------| | 80486DX2 | 2 & 3 | 1 & 2 | 1 & 2 | Closed | 2 & 3 | |-----------+---------+---------+---------+---------+--------| | P24T | 1 & 2 | 1 & 2 | 2 & 3 | Closed | 1 & 2 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | E16 | |------------------------------+-----------------------------| | 25MHz | Open | |------------------------------+-----------------------------| | 33MHz | Closed | |------------------------------+-----------------------------| | 50iMHz | Open | |------------------------------+-----------------------------| | 66iMHz | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO MEMORY CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |---------+----------------+----------------+----------------| | 512KB | (1) 256K x 16 | None | None | |---------+----------------+----------------+----------------| | 1MB | (1) 256K x 16 | (1) 256K x 16 | None | |---------+----------------+----------------+----------------| | 2MB | (1) 256K x 16 | (1) 256K x 16 | (2) 256K x 16 | |------------------------------------------------------------| | Note: Bank 0 is factory installed and is not configurable. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTE | |------------------------------------------------------------| | Note: The location of pin 1 is unidentified. | +------------------------------------------------------------+