AST RESEARCH, INC. ================== PREMMIA MX 4/66D, PREMMIA MX 4/100T Processor 80486SX/486 Overdrive/80486DX/80486DX2/80486DX4/P24T Processor 25/33/50(internal)/66(internal)/100(internal)MHz Speed Chip Set Unidentified Video Chip ATI Set Maximum 128MB Onboard Memory Maximum Video 4MB Memory Cache 64/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), riser slot NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | PS/2 mouse port | CN2 | External battery | J26 | |-------------------+----------+------------------+----------| | Serial port | CN3 | Speaker | J27 | |-------------------+----------+------------------+----------| | Serial port | CN4 | Chassis fan | J28 | | | | power | | |-------------------+----------+------------------+----------| | Parallel port | CN5 | Front console | J29 pins | | | | LED | 1 - 4 | |-------------------+----------+------------------+----------| | IDE interface 1 | J22 | Chassis fan | J32 | | | | power | | |-------------------+----------+------------------+----------| | IDE interface 2 | J23 | IDE interface | J40 | | | | LED | | |-------------------+----------+------------------+----------| | Floppy drive | J24 | Riser slot | SL1 | | interface | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |---------------------------------------+-------+------------| |>> | Factory configured - do not alter | E6 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | CMOS memory normal operation | E8 | Open | |---+-----------------------------------+-------+------------| | | CMOS memory clear | E8 | Closed | |---+-----------------------------------+-------+------------| |>> | Flash BIOS normal operation | SW1/1 | Off | |---+-----------------------------------+-------+------------| | | Flash BIOS force update at boot | SW1/1 | On | |---+-----------------------------------+-------+------------| |>> | Password normal operation | SW1/2 | On | |---+-----------------------------------+-------+------------| | | Password clear | SW1/2 | Off | |---+-----------------------------------+-------+------------| |>> | Monitor type select color | SW1/3 | On | |---+-----------------------------------+-------+------------| | | Monitor type select monochrome | SW1/3 | Off | |---+-----------------------------------+-------+------------| |>> | Setup access enabled | SW1/4 | Off | |---+-----------------------------------+-------+------------| | | Setup access disabled | SW1/4 | On | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | SW1/5 | Off | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | SW1/6 | On | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | SW1/7 | On | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | SW1/8 | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 4MB | (1) 1M x 32 | None | None | None | |------+-------------+-------------+------------+------------| | 8MB | (1) 2M x 32 | None | None | None | |------+-------------+-------------+------------+------------| | 8MB | (1) 1M x 32 | (1) 1M x 32 | None | None | |------+-------------+-------------+------------+------------| | 9MB | (1) 1M x 32 | (1) 1M x 32 | (1) 256K x | None | | | | | 32 | | |------+-------------+-------------+------------+------------| | 10MB | (1) 1M x 32 | (1) 1M x 32 | (1) 256K x | (1) 256K x | | | | | 32 | 32 | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 32 | (1) 1M x 32 | (1) 1M x | None | | | | | 32 | | |------+-------------+-------------+------------+------------| | 16MB | (1) 1M x 32 | (1) 1M x 32 | (1) 1M x | (1) 1M x | | | | | 32 | 32 | |------+-------------+-------------+------------+------------| | 16MB | (1) 4M x 32 | None | None | None | |------+-------------+-------------+------------+------------| | 17MB | (1) 2M x 32 | (1) 2M x 32 | (1) 256K x | None | | | | | 32 | | |------+-------------+-------------+------------+------------| | 18MB | (1) 2M x 32 | (1) 2M x 32 | (1) 256K x | (1) 256K x | | | | | 32 | 32 | |------+-------------+-------------+------------+------------| | 20MB | (1) 2M x 32 | (1) 2M x 32 | (1) 1M x | None | | | | | 32 | | |------+-------------+-------------+------------+------------| | 24MB | (1) 2M x 32 | (1) 2M x 32 | (1) 1M x | (1) 1M x | | | | | 32 | 32 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |-------+-------------+----------+--------------+------------| | 24MB | (1) 2M x 32 | (1) 2M x | (1) 2M x 32 | None | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 32MB | (1) 2M x 32 | (1) 2M x | (1) 2M x 32 | (1) 2M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 32MB | (1) 8M x 32 | None | None | None | |-------+-------------+----------+--------------+------------| | 32MB | (1) 4M x 32 | (1) 4M x | None | None | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 33MB | (1) 4M x 32 | (1) 4M x | (1) 256K x | NONE | | | | 32 | 32 | | |-------+-------------+----------+--------------+------------| | 34MB | (1) 4M x 32 | (1) 4M x | (1) 256K x | (1) 256K x | | | | 32 | 32 | 32 | |-------+-------------+----------+--------------+------------| | 36MB | (1) 4M x 32 | (1) 4M x | (1) 1M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 40MB | (1) 4M x 32 | (1) 4M x | (1) 1M x 32 | (1) 1M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 40MB | (1) 4M x 32 | (1) 4M x | (1) 2M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 48MB | (1) 4M x 32 | (1) 4M x | (1) 2M x 32 | (1) 2M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 48MB | (1) 4M x 32 | (1) 4M x | (1) 4M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 64MB | (1) 4M x 32 | (1) 4M x | (1) 4M x 32 | (1) 4M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 64MB | (1) 8M x 32 | (1) 8M x | NONE | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 66MB | (1) 8M x 32 | (1) 8M x | (1) 256K x | (1) 256K x | | | | 32 | 32 | 32 | |-------+-------------+----------+--------------+------------| | 68MB | (1) 8M x 32 | (1) 8M x | (1) 1M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 72MB | (1) 8M x 32 | (1) 8M x | (1) 1M x 32 | (1) 1M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 72MB | (1) 8M x 32 | (1) 8M x | (1) 2M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 80MB | (1) 8M x 32 | (1) 8M x | (1) 2M x 32 | (1) 2M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 80MB | (1) 8M x 32 | (1) 8M x | (1) 4M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 96MB | (1) 8M x 32 | (1) 8M x | (1) 4M x 32 | (1) 4M x | | | | 32 | | 32 | |-------+-------------+----------+--------------+------------| | 96MB | (1) 8M x 32 | (1) 8M x | (1) 8M x 32 | NONE | | | | 32 | | | |-------+-------------+----------+--------------+------------| | 128MB | (1) 8M x 32 | (1) 8M x | (1) 8M x 32 | (1) 8M x | | | | 32 | | 32 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |------------+---------------+---------------+---------------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 9 | |------------+---------------+---------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | E5 | |-----------------------------+------------------------------| | 64KB | Open | |-----------------------------+------------------------------| | 256KB | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | Speed | E7 | E9 | |-------------------+-----------------------+----------------| | 25MHz | Pins 1 & 2 closed | Closed | |-------------------+-----------------------+----------------| | 33MHz | Pins 2 & 3 closed | Open | |-------------------+-----------------------+----------------| | 50iMHz | Pins 1 & 2 closed | Closed | |-------------------+-----------------------+----------------| | 66iMHz | Pins 2 & 3 closed | Open | |-------------------+-----------------------+----------------| | 100iMHz | Pins 1 & 2 closed | Closed | |------------------------------------------------------------| | Note: If 100iMHz is used, jumper E4 must be open. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (80486DX4 ONLY) | |------------------------------------------------------------| | Voltage | E4 | |----------------------------+-------------------------------| | 2x | Pins 2 & 3 closed | |----------------------------+-------------------------------| | 2.5x | Pins 1 & 2 closed | |----------------------------+-------------------------------| | 3x | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | E1 | E2 | E3 | E10 | |-------------+--------+-------------+------------+----------| | 80486SX | Open | Pins 2 & 3 | Pins 1 & 2 | Closed | | (PQFP) | | closed | closed | | |-------------+--------+-------------+------------+----------| | 486 | Open | Pins 2 & 3 | Pins 1 & 2 | Closed | | Overdrive | | closed | closed | | |-------------+--------+-------------+------------+----------| | 80486DX | Open | Pins 1 & 2 | Pins 1 & 2 | Closed | | | | closed | closed | | |-------------+--------+-------------+------------+----------| | 80486DX2 | Open | Pins 1 & 2 | Pins 1 & 2 | Closed | | | | closed | closed | | |-------------+--------+-------------+------------+----------| | 80486DX2 | Open | Pins 1 & 2 | Pins 2 & 3 | Open | | (WB) | | closed | closed | | |-------------+--------+-------------+------------+----------| | 80486DX4 | Open | Pins 1 & 2 | Pins 1 & 2 | Closed | | | | closed | closed | | |-------------+--------+-------------+------------+----------| | P24T | Open | Pins 2 & 3 | Pins 2 & 3 | Open | | | | closed | closed | | |------------------------------------------------------------| | Note: E10 may not be present not on all boards. To | | use write through cache on P24T, set E1 to the closed | | position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | E11 | E12 | E13 | E14 | E15 | E16 | |---------+--------+-------+-------+-------+--------+--------| | 3v | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | Open | 1 & 2 | | Cyrix | | | | | | | |---------+--------+-------+-------+-------+--------+--------| | 3v | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Closed | 2 & 3 | | Intel | | | | | | | |---------+--------+-------+-------+-------+--------+--------| | 5v | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | Open | Open | | Cyrix | | | | | | | |---------+--------+-------+-------+-------+--------+--------| | 5v | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Closed | Open | | Intel | | | | | | | |------------------------------------------------------------| | Note: Pins designated should be in the closed | | position. The location of E12 is unidentified. The | | above jumpers may not be present on all boards. If | | these jumpers are not present, only Intel CPUs may be | | used. | +------------------------------------------------------------+