EFA CORPORATION =============== ECA 34M50FL Processor 80386DX/CX486DLC/80486SX/80486DX/80486DX2 Processor Speed 16/20/25/33/40/50(internal)/50/66(internal)MHz Chip Set UMC Max. Onboard 32MB DRAM Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2) NPU Options 80387DX +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | External battery | J1 | Turbo Switch | J13 | |------------------+----------+-------------------+----------| | Power LED & | J10 | Turbo LED | J14 | | keylock | | | | |------------------+----------+-------------------+----------| | Speaker | J11 | Chassis fan power | J15 | |------------------+----------+-------------------+----------| | Reset switch | J12 | 32-bit VESA Local | S1 & S2 | | | | bus slots | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | CMOS memory normal operation | W1 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | CMOS memory clear | W1 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | On board battery enabled | W2 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | On board battery disabled | W2 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | W14 | Open | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |------------------+--------------------+--------------------| | 20MB | (4) 1M x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 32MB | (4) 4M x 9 | (4) 4M x 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG/U24 | Dirty | | | | | | Bit/U37 | |-------+------------+-----------+-------------+-------------| | 64KB | (4) 8K x 8 | (4) 8K x | (1) 8K x 8 | (1) 16K x 8 | | | | 8 | | | |-------+------------+-----------+-------------+-------------| | 128KB | (4) 32K x | NONE | (1) 8K x 8 | (1) 16K x 8 | | | 8 | | | | |-------+------------+-----------+-------------+-------------| | 256KB | (4) 32K x | (4) 32K x | (1) 32K x 8 | (1) 16K x 8 | | | 8 | 8 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | W5 | W6 | W7 | W8 | W9 | W10 | W11 | W12 | |------+------+------+-----+-----+------+------+------+------| | 64KB |1 & 2 |1 & 2 |1 & 2|Open | Open | Open | Open | Open | |------+------+------+-----+-----+------+------+------+------| |128KB |2 & 3 |1 & 2 |2 & 3|1 & 2| Open |Closed| Open |Closed| |------+------+------+-----+-----+------+------+------+------| |256KB |2 & 3 |2 & 3 |1 & 2|2 & 3|Closed|Closed|Closed|Closed| |------------------------------------------------------------| |Note:Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | SW3/1 | SW3/2 | SW3/3 | SW3/4 | SW3/5 | SW3/6 | |------------+-------+-------+-------+-------+-------+-------| | CX486DLC | Off | On | On | Off | Off | Off | |------------+-------+-------+-------+-------+-------+-------| | 80486SX/20 | Off | Off | Off | On | On | Off | |------------+-------+-------+-------+-------+-------+-------| | 80486SX/25 | Off | Off | Off | Off | On | Off | |------------+-------+-------+-------+-------+-------+-------| | 80486SX | Off | Off | Off | Off | Off | Off | | (PQFP) | | | | | | | |------------+-------+-------+-------+-------+-------+-------| | 80486DX | Off | On | On | Off | Off | Off | |------------+-------+-------+-------+-------+-------+-------| | 80486DX | On | Off | Off | Off | Off | On | | (PQFP) | | | | | | | |------------+-------+-------+-------+-------+-------+-------| | ODP486SX | Off | On | On | Off | Off | Off | |------------+-------+-------+-------+-------+-------+-------| | 80486DX2 | Off | On | On | Off | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CONT.) | |------------------------------------------------------------| | Type | Pins | J9 | |--------------------+------------------+--------------------| | 80486SX | 168 | pins 1 & 2 closed | |--------------------+------------------+--------------------| | 80486SX/80486DX2 | 168 Overdrive | pins 1 & 2 closed | |--------------------+------------------+--------------------| | 80486DX | 168 Overdrive | pins 2 & 3 closed | |--------------------+------------------+--------------------| | 80486DX | 169 Overdrive | pins 1 & 2 closed | |--------------------+------------------+--------------------| | 80486DX/80486DX2 | 168 | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CONT.) | |------------------------------------------------------------| | Type | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | |--------+--------+--------+--------+--------+-------+-------| | 80386 | On | On | On | On | On | On | |--------+--------+--------+--------+--------+-------+-------| | 80486 | Off | Off | Off | Off | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | NPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | SW2/switch 7 | |-------------------------------+----------------------------| | 80387DX enabled | On | |-------------------------------+----------------------------| | 80387DX disabled | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CONT.) | |------------------------------------------------------------| | Type | J5 | |--------------------------+---------------------------------| | 80486SX | pins 2 & 3 closed | |--------------------------+---------------------------------| | 80486DX | pins 2 & 3 closed | |--------------------------+---------------------------------| | ODP486SX | pins 1 & 2 closed | |--------------------------+---------------------------------| | 80486DX2 | pins 2 & 3 closed | |------------------------------------------------------------| | Note:This only applies when the 80486SX/DX PQFP is | | disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | CPU | Speed | Osc. | SW1/1 | SW1/2 | SW1/3 | SW1/4 | |----------+---------+-------+-------+-------+-------+-------| | 80386DX | 16MHz | 16MHz | On | On | On | On | |----------+---------+-------+-------+-------+-------+-------| | 80386DX | 16MHz | 16MHz | On | On | Off | Off | |----------+---------+-------+-------+-------+-------+-------| | 80386DX | 20MHz | 20MHz | On | On | On | Off | |----------+---------+-------+-------+-------+-------+-------| | 80386DX | 33MHz | 33MHz | On | Off | On | On | |----------+---------+-------+-------+-------+-------+-------| | 80386DX | 40MHz | 80MHz | On | Off | Off | Off | |----------+---------+-------+-------+-------+-------+-------| | 80486SX | 20MHz | 40MHz | Off | Off | On | Off | |----------+---------+-------+-------+-------+-------+-------| | 80486SX | 25MHz | 25MHz | On | On | Off | On | |----------+---------+-------+-------+-------+-------+-------| | 80487SX | 20MHz | 40MHz | Off | Off | On | Off | |----------+---------+-------+-------+-------+-------+-------| | 80487SX | 25MHz | 25MHz | On | On | Off | On | |----------+---------+-------+-------+-------+-------+-------| | 80486DX | 25MHz | 25MHz | On | On | Off | On | |----------+---------+-------+-------+-------+-------+-------| | 80486DX | 33MHz | 33MHz | On | Off | On | On | |----------+---------+-------+-------+-------+-------+-------| | 80486DX | 50MHz | 50MHz | Off | Off | Off | Off | |----------+---------+-------+-------+-------+-------+-------| | ODP486SX | 50i MHz | 25MHz | On | On | Off | On | |----------+---------+-------+-------+-------+-------+-------| | ODP486SX | 66i MHz | 33MHz | On | Off | On | On | |----------+---------+-------+-------+-------+-------+-------| | 80486DX2 | 50i MHz | 25MHz | On | On | Off | On | |----------+---------+-------+-------+-------+-------+-------| | 80486DX2 | 66i MHz | 33MHz | On | Off | On | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA WAIT STATE/BUS SPEED CONFIGURATION | |------------------------------------------------------------| | CPU speed | Wait states | J4 | J6 | J7 | |-------------+---------------+----------+---------+---------| | Auto detect | Auto select | Closed | Open | Closed | |-------------+---------------+----------+---------+---------| | GBP 33MHz | 0 wait states | Closed | Closed | Open | |-------------+---------------+----------+---------+---------| | > 33MHz | 1 wait state | Open | Closed | Closed | +------------------------------------------------------------+