MYLEX CORPORATION ================= MGI 486 Processor 80486SX/80486SX2/UMCU5/CX486DX/AM486DX/AM486DXL/80486DX/ CX486DX2/ AM486DX2/AM486DXL2/80486DX2/80486DX4/P24D/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set SIS Max. 64MB Onboard DRAM Cache 64/128/256/512KB BIOS Award Dimensions 250mm x 220mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | Green PC | D4 | Reset switch | J5 | | connector | | | | |-------------------+----------+------------------+----------| | Green PC | J1 | Turbo switch | J6 | | connector | | | | |-------------------+----------+------------------+----------| | Power LED & | J2 | Turbo LED | J7 | | keylock | | | | |-------------------+----------+------------------+----------| | Speaker | J3 | Green PC | JP13 | | | | connector | | |-------------------+----------+------------------+----------| | External battery | J4 | 32-bit VESA | SL1 - | | | | local bus slots | SL3 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | CMOS memory normal operation | JP11 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | CMOS memory clear | JP11 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | RP1 | N/A | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (OPTION 1) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |-------------+---------------+---------------+--------------| | 1MB | (4) 256K x 9 | NONE | NONE | |-------------+---------------+---------------+--------------| | 4MB | (4) 1M x 9 | NONE | NONE | |-------------+---------------+---------------+--------------| | 16MB | (4) 4M x 9 | NONE | NONE | |-------------+---------------+---------------+--------------| | 64MB | (4) 16M x 9 | NONE | NONE | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (OPTION 2) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |-------------+--------------+---------------+---------------| | 1MB | NONE | (1) 256K x 36 | NONE | |-------------+--------------+---------------+---------------| | 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 | |-------------+--------------+---------------+---------------| | 4MB | NONE | (1) 1M x 36 | NONE | |-------------+--------------+---------------+---------------| | 5MB | NONE | (1) 256K x 36 | (1) 1M x 36 | |-------------+--------------+---------------+---------------| | 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 | |-------------+--------------+---------------+---------------| | 16MB | NONE | (1) 4M x 36 | NONE | |-------------+--------------+---------------+---------------| | 20MB | NONE | (1) 1M x 36 | (1) 4M x 36 | |-------------+--------------+---------------+---------------| | 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (OPTION 3) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |-------------+--------------+---------------+---------------| | 2MB | NONE | (1) 512K x 36 | NONE | |-------------+--------------+---------------+---------------| | 8MB | NONE | (1) 2M x 36 | NONE | |-------------+--------------+---------------+---------------| | 10MB | NONE | (1) 512K x 36 | (1) 2M x 36 | |-------------+--------------+---------------+---------------| | 16MB | NONE | (1) 2M x 36 | (1) 2M x 36 | |-------------+--------------+---------------+---------------| | 32MB | NONE | (1) 8M x 36 | NONE | |-------------+--------------+---------------+---------------| | 40MB | NONE | (1) 2M x 36 | (1) 8M x 36 | |-------------+--------------+---------------+---------------| | 64MB | NONE | (1) 8M x 36 | (1) 8M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (OPTION 4) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE | |------------+---------------+---------------+---------------| | 5MB | (4) 256K x 9 | (1) 1M x 36 | NONE | |------------+---------------+---------------+---------------| | 6MB | (4) 256K x 9 | (1) 256K x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE | |------------+---------------+---------------+---------------| | 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 18MB | (4) 256K x 9 | (1) 256K x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 20MB | (4) 1M x 9 | (1) 4M x 36 | NONE | |------------+---------------+---------------+---------------| | 24MB | (4) 1M x 9 | (1) 1M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE | |------------+---------------+---------------+---------------| | 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 | |------------+---------------+---------------+---------------| | 48MB | (4) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (OPTION 5) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 12MB | (4) 1M x 9 | (1) 2M x 36 | NONE | |------------+---------------+---------------+---------------| | 16MB | (4) 1M x 9 | (1) 2M x 36 | (1) 1M x 36 | |------------+---------------+---------------+---------------| | 36MB | (4) 1M x 9 | (1) 8M x 36 | NONE | |------------+---------------+---------------+---------------| | 48MB | (4) 4M x 9 | (1) 8M x 36 | NONE | |------------+---------------+---------------+---------------| | 64MB | (4) 4M x 9 | (1) 8M x 36 | (1) 4M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM RESISTOR CONFIGURATION | |------------------------------------------------------------| | Setting | RP7 | RP8 | RP9 | RP10 | |----------+------------+------------+-----------+-----------| | Option 1 | Not | Not | Not | Installed | | | installed | installed | installed | | |----------+------------+------------+-----------+-----------| | Option 2 | Not | Installed | Not | Not | | | installed | | installed | installed | |----------+------------+------------+-----------+-----------| | Option 3 | Installed | Not | Not | Not | | | | installed | installed | installed | |----------+------------+------------+-----------+-----------| | Option 4 | Not | Not | Not | Installed | | | installed | installed | installed | | |----------+------------+------------+-----------+-----------| | Option 5 | Not | Not | Installed | Not | | | installed | installed | | installed | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 or (1) 32K | | | | | x 8 | |-------+-------------+-------------+------------------------| | 256KB | (4) 64K x 8 | NONE | (1) 16K x 8 or (1) 32K | | | | | x 8 | |-------+-------------+-------------+------------------------| | 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP9 | JP20 | |------------------+--------------------+--------------------| | 64KB | pins 1 & 2 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 128KB | pins 2 & 3 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 256KB | pins 2 & 3 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 256KB | pins 2 & 3 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 512KB | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE RESISTOR CONFIGURATION | |------------------------------------------------------------| |Size | RP15 | RP16 | RP17 | RP18 | RP19 | |-----+----------+----------+----------+----------+----------| |64KB |Installed | Not | Not | Not | Not | | | |installed |installed |installed |installed | |-----+----------+----------+----------+----------+----------| |128KB| Not |Installed | Not | Not | Not | | |installed | |installed |installed |installed | |-----+----------+----------+----------+----------+----------| |256KB| Not | Not |Installed | Not | Not | | |installed |installed | |installed |installed | |-----+----------+----------+----------+----------+----------| |256KB| Not | Not | Not |Installed | Not | | |installed |installed |installed | |installed | |-----+----------+----------+----------+----------+----------| |512KB| Not | Not | Not | Not |Installed | | |installed |installed |installed |installed | | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP3 | JP17 | JP18 | JP21 | JP23 | |------------+---------+---------+---------+--------+--------| | 80486SX | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | 80486SX2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | UMCU5 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | CX486DX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | 80486DX | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | 80486DX2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | 80486DX4 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | P24D | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |------------+---------+---------+---------+--------+--------| | P24T | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +--------------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CON'T) | |--------------------------------------------------------------------| | Type | RP3 | RP4 | RP5 | RP6 | RP30 | RP31 | |--------+---------+---------+---------+---------+---------+---------| |80486SX | Not | Not |Installed| Not | Not |Installed| | |installed|installed| |installed|installed| | |--------+---------+---------+---------+---------+---------+---------| |80486SX2| Not | Not |Installed| Not | Not |Installed| | |installed|installed| |installed|installed| | |--------+---------+---------+---------+---------+---------+---------| | UMCU5 | Not | Not |Installed| Not | Not |Installed| | |installed|installed| |installed|installed| | |--------+---------+---------+---------+---------+---------+---------| |CX486DX |Installed| Not | Not | Not |Installed| Not | | | |installed|installed|installed| |installed| |--------+---------+---------+---------+---------+---------+---------| |80486DX |Installed| Not | Not | Not | Not |Installed| | | |installed|installed|installed|installed| | |--------+---------+---------+---------+---------+---------+---------| |80486DX2|Installed| Not | Not | Not | Not |Installed| | | |installed|installed|installed|installed| | |--------+---------+---------+---------+---------+---------+---------| |80486DX4|Installed| Not | Not | Not | Not |Installed| | | |installed|installed|installed|installed| | |--------+---------+---------+---------+---------+---------+---------| | P24D | Not |Installed| Not |Installed| Not | Not | | |installed| |installed| |installed|installed| |--------+---------+---------+---------+---------+---------+---------| | P24T |Installed| Not | Not | Not | Not |Installed| | | |installed|installed|installed|installed| | +--------------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION (MX8315/UM9515 CLOCK) | |------------------------------------------------------------| | Speed | JP5 | JP6 | JP7 | |---------------+---------------+--------------+-------------| | 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 SPEED CONFIGURATION (IMI SC466 CLOCK) | |------------------------------------------------------------| | Speed | JP5 | JP6 | JP7 | |---------------+---------------+---------------+------------| | 25MHz | Open | Open | Open | |---------------+---------------+---------------+------------| | 33MHz | Closed | Closed | Open | |---------------+---------------+---------------+------------| | 40MHz | Open | Closed | Open | |---------------+---------------+---------------+------------| | 50iMHz | Open | Open | Open | |---------------+---------------+---------------+------------| | 50MHz | Closed | Open | Open | |---------------+---------------+---------------+------------| | 66iMHz | Closed | Closed | Open | |---------------+---------------+---------------+------------| | 75iMHz | Open | Open | Open | |---------------+---------------+---------------+------------| | 100iMHz | Closed | Closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU CORE FREQUENCY CONFIGURATION | |------------------------------------------------------------| | CPU | JP22 | JP27 | |---------------------+--------------------+-----------------| | Cyrix | pins 1 & 2 closed | Open | |---------------------+--------------------+-----------------| | AMD486DX2 | Open | Closed | |---------------------+--------------------+-----------------| | Intel 80486DX (3x) | Open | Open | |---------------------+--------------------+-----------------| | AMD486DX4 | Open | Open | |---------------------+--------------------+-----------------| | Intel 80486DX4 (2x) | pins 2 & 3 closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | JP1 | JP2 | JP4 | JP24 | |----------+---------+---------+---------+-------------------| | 3.3v | Open | Open | Open | pins 1 & 2 closed | |----------+---------+---------+---------+-------------------| | 4.0v | Open | Open | Open | pins 2 & 3 closed | |----------+---------+---------+---------+-------------------| | 5.0v | Closed | Closed | Closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA WAIT STATE CONFIGURATION | |------------------------------------------------------------| | Wait states | JP15 | |----------------------------+-------------------------------| | 0 wait states | pins 1 & 2 closed | |----------------------------+-------------------------------| | 1 wait state | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUS SPEED CONFIGURATION | |------------------------------------------------------------| | CPU speed | JP16 | |----------------------------+-------------------------------| | <= 33MHz | pins 1 & 2 closed | |----------------------------+-------------------------------| | > 33MHz | pins 2 & 3 closed | +------------------------------------------------------------+