EFA CORPORATION =============== 4MHL3S Processor CX486SX/80486SX/CX486DX/80486DX/80486DX2 Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set UMC Max. Onboard DRAM 64MB Cache 32/64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (3) NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | External battery | JP21 | Reset switch | JP26 | |------------------+----------+-------------------+----------| | Power LED & | JP22 | Green PC | JP28 | | keylock | | connector | | |------------------+----------+-------------------+----------| | Speaker | JP23 | 32-bit VESA Local | S1 | | | | bus slot | | |------------------+----------+-------------------+----------| | Turbo LED | JP24 | 32-bit VESA Local | S2 | | | | bus slot | | |------------------+----------+-------------------+----------| | Turbo switch | JP25 | 32-bit VESA Local | S3 | | | | bus slot | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| | | External battery enabled | JP1 | Open | |---+----------------------------------+--------+------------| | | Internal battery enabled | JP1 | Closed | |---+----------------------------------+--------+------------| | | CPU CX486SX & CX487SX enabled | JP6 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | CPU CX486SX & CX487SX disabled | JP6 | Open | |---+----------------------------------+--------+------------| |>> | Trident 9000 video card not | JP8 | pins 1 & 2 | | | installed | | closed | |---+----------------------------------+--------+------------| | | Trident 9000 video card | JP8 | pins 2 & 3 | | | installed | | closed | |---+----------------------------------+--------+------------| |>> | External green card enabled | JP10 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | External green card disabled | JP10 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP13 | pins 1 & 2 | | | alter | | closed | |---+----------------------------------+--------+------------| | | 32K x 8 TAG enabled | JP27 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | 16K x 8 TAG enabled | JP27 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP29 | pins 2 & 3 | | | alter | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP30 | pins 2 & 3 | | | alter | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP31 | Closed | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 1MB | (4) 256K x 9 | NONE | NONE | |------------+---------------+---------------+---------------| | 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE | |------------+---------------+---------------+---------------| | 2MB | (4) 256K x 9 | NONE | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 2MB | NONE | (1) 512K x 36 | NONE | |------------+---------------+---------------+---------------| | 2MB | NONE | NONE | (1) 512K x 36 | |------------+---------------+---------------+---------------| | 3MB | (4) 256K x 9 | (1) 256K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 3MB | (4) 256K x 9 | (1) 512K x 36 | NONE | |------------+---------------+---------------+---------------| | 3MB | NONE | (1) 512K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 3MB | NONE | (1) 256K x 36 | (1) 512K x 36 | |------------+---------------+---------------+---------------| | 4MB | (4) 1M x 9 | NONE | NONE | |------------+---------------+---------------+---------------| | 4MB | NONE | (1) 512K x 36 | (1) 512K x 36 | |------------+---------------+---------------+---------------| | 4MB | (4) 256K x 9 | (1) 512K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 5MB | (4) 1M x 9 | (1) 256K x 36 | NONE | |------------+---------------+---------------+---------------| | 5MB | (4) 1M x 9 | NONE | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 5MB | NONE | (1) 1M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 5MB | NONE | (1) 256K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 5MB | (4) 256K x 9 | (1) 1M x 36 | NONE | |------------+---------------+---------------+---------------| | 5MB | (4) 256K x 9 | NONE | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 6MB | (4) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 6MB | (4) 256K x 9 | (1) 1M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 6MB | (4) 256K x 9 | (1) 256K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 6MB | NONE | (1) 1M x 36 | (1) 512K x 36 | |------------+---------------+---------------+---------------| | 6MB | NONE | (1) 512K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 7MB | (4) 1M x 9 | (1) 512K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE | |------------+---------------+---------------+---------------| | 8MB | (4) 1M x 9 | NONE | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CONT.) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 9MB | (4) 1M x 9 | (1) 1M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 9MB | (4) 1M x 9 | (1) 256K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 9MB | (4) 256K x 9 | (1) 1M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 10MB | NONE | (1) 2M x 36 | (1) 512K x 36 | |------------+---------------+---------------+---------------| | 10MB | (4) 1M x 9 | (1) 512K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 12MB | (4) 1M x 9 | (1) 2M x 36 | NONE | |------------+---------------+---------------+---------------| | 12MB | NONE | (1) 2M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 12MB | NONE | (1) 1M x 36 | (1) 2M x 36 | |------------+---------------+---------------+---------------| | 13MB | (4) 256K x 9 | (1) 2M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 13MB | (4) 1M x 9 | (1) 2M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 16MB | (4) 4M x 9 | NONE | NONE | |------------+---------------+---------------+---------------| | 16MB | (4) 1M x 9 | (1) 2M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 16MB | NONE | (1) 2M x 36 | (1) 2M x 36 | |------------+---------------+---------------+---------------| | 17MB | (4) 4M x 9 | (1) 256K x 36 | NONE | |------------+---------------+---------------+---------------| | 17MB | (4) 4M x 9 | NONE | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 17MB | (4) 256K x 9 | (1) 4M x 36 | NONE | |------------+---------------+---------------+---------------| | 17MB | (4) 256K x 9 | NONE | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 18MB | (4) 4M x 9 | (1) 256K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 18MB | (4) 256K x 9 | (1) 4M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 18MB | (4) 256K x 9 | (1) 256K x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 19MB | (4) 4M x 9 | (1) 512K x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 20MB | (4) 4M x 9 | (1) 1M x 36 | NONE | |------------+---------------+---------------+---------------| | 20MB | (4) 4M x 9 | NONE | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 20MB | (4) 1M x 9 | (1) 4M x 36 | NONE | |------------+---------------+---------------+---------------| | 20MB | (4) 1M x 9 | NONE | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 21MB | (4) 256K x 9 | (1) 4M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 21MB | (4) 256K x 9 | (1) 1M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 21MB | (4) 1M x 9 | (1) 4M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 21MB | (4) 1M x 9 | (1) 256K x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 21MB | (4) 4M x 9 | (1) 1M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 21MB | (4) 4M x 9 | (1) 256K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 22MB | (4) 4M x 9 | (1) 512K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 24MB | (4) 4M x 9 | (1) 1M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 24MB | (4) 1M x 9 | (1) 4M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 24MB | (4) 1M x 9 | (1) 1M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 24MB | NONE | (1) 4M x 36 | (1) 2M x 36 | |------------+---------------+---------------+---------------| | 24MB | NONE | (1) 2M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 25MB | (4) 256K x 9 | (1) 2M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 25MB | (4) 4M x 9 | (1) 2M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 28MB | (4) 4M x 9 | (1) 2M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 28MB | (4) 1M x 9 | (1) 2M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE | |------------+---------------+---------------+---------------| | 32MB | (4) 4M x 9 | NONE | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CONT.) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 33MB | (4) 256K x 9 | (1) 4M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 33MB | (4) 4M x 9 | (1) 256K x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 33MB | (4) 4M x 9 | (1) 4M x 36 | (1) 256K x 36 | |------------+---------------+---------------+---------------| | 34MB | (4) 4M x 9 | (1) 512K x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 36MB | (4) 4M x 9 | (1) 1M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 36MB | (4) 4M x 9 | (1) 4M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 40MB | (4) 4M x 9 | (1) 2M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 48MB | (4) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 64MB | (4) 16M x 9 | NONE | NONE | +------------------------------------------------------------+ +------------------------------------------------------------+ | CLOCK GENERATOR CONFIGURATION | |------------------------------------------------------------| | Clock Type | JP32 | JP33 | |--------------------+--------------------+------------------| | MX8310 | pins 1 & 2 closed | Open | |--------------------+--------------------+------------------| | MX8315 | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |----------+----------------+----------------+---------------| | 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 | |----------+----------------+----------------+---------------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | |----------+----------------+----------------+---------------| | 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | |----------+----------------+----------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 | |----------+----------------+----------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP15 | JP16 | JP17 | JP19 | JP20 | |-------+------------+------------+--------+--------+--------| | 32KB | pins 2 & 3 | Open | Open | Open | Open | |-------+------------+------------+--------+--------+--------| | 64KB | pins 1 & 2 | Open | Open | Closed | Open | |-------+------------+------------+--------+--------+--------| | 128KB | pins 2 & 3 | pins 2 & 3 | Closed | Closed | Open | |-------+------------+------------+--------+--------+--------| | 256KB | pins 1 & 2 | pins 1 & 2 | Closed | Closed | Closed | |------------------------------------------------------------| | Note:Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP9 | JP11 | |--------------------+-------------------+-------------------| | 80486SX | Open | pins 2 & 3 closed | |--------------------+-------------------+-------------------| | ODP486SX | pins 2 & 3 closed | pins 1 & 2, and 3 | | | | & 4 closed | |--------------------+-------------------+-------------------| | CX486SX/CX487SX | pins 1 & 2 closed | pins 1 & 2, and 3 | | | | & 4 closed | |--------------------+-------------------+-------------------| | 80486DX2 | pins 1 & 2 closed | pins 1 & 2, and 3 | | | | & 4 closed | |--------------------+-------------------+-------------------| | 80486DX2 Overdrive | pins 2 & 3 closed | pins 1 & 2, and 3 | | | | & 4 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | JP2 | JP3 | JP4 | JP7 | |---------+----------+---------+---------+-------------------| | 20MHz | Open | Open | Open | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 25MHz | Closed | Open | Open | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 33MHz | Closed | Closed | Closed | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 40MHz | Closed | Closed | Open | pins 2 & 3 closed | |---------+----------+---------+---------+-------------------| | 50i MHz | Closed | Open | Open | pins 1 & 2 closed | |---------+----------+---------+---------+-------------------| | 50MHz | Open | Open | Closed | pins 2 & 3 closed | |---------+----------+---------+---------+-------------------| | 66i MHz | Closed | Closed | Closed | pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | NPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP12 | JP14 | |--------------------+-------------------+-------------------| | Intel CPU or | pins 2 & 3 closed | Open | | CX486SX | | | |--------------------+-------------------+-------------------| | CX486SX & CX487SX | pins 1 & 2 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA WAIT STATE/BUS SPEED CONFIGURATION | |------------------------------------------------------------| | CPU speed | Wait states | JP18 | |--------------------+--------------------+------------------| | GBP 33MHz | 0 wait states | Open | |--------------------+--------------------+------------------| | > 33MHz | 1 wait state | Closed | +------------------------------------------------------------+