MICRONICS COMPUTERS, INC. ========================= MPOWER4 PLUS (VER.A) Processor 80486SX/ODP486SX/80486DX/80486DX2/Pentium Overdrive Processor 25/33/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Micronics Max. 64MB Onboard DRAM Cache 64/128/256KB BIOS Phoenix Dimensions 330mm x 218mm I/O 32-bit VESA local bus, floppy drive interface, IDE interface, Options parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | Parallel port | J1 | Video feature | J31 | | | | connector | | |------------------+----------+-------------------+----------| | Serial port 2 | J2 | VGA port | J32 | |------------------+----------+-------------------+----------| | Serial port 1 | J3 | Turbo LED | W18 | |------------------+----------+-------------------+----------| | Power LED & | J7 | Turbo switch | W19 | | keylock | | | | |------------------+----------+-------------------+----------| | PS/2 mouse port | J10 | Reset switch | W20 | |------------------+----------+-------------------+----------| | IDE interface | J26 | IDE interface LED | W21 | |------------------+----------+-------------------+----------| | Floppy drive | J27 | 32-bit VESA Local | SL1 | | interface | | bus slots | | |------------------+----------+-------------------+----------| | Speaker | J30 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper/Switch | Position | |-------------------------------+---------------+------------| |>> | Cache select write back | U61 | Installed | |---+---------------------------+---------------+------------| | | Cache select write | U61 | Not | | | through | | installed | |---+---------------------------+---------------+------------| |>> | Real time clock installed | W1 | Closed | |---+---------------------------+---------------+------------| | | Real time clock not | W1 | Open | | | installed | | | |---+---------------------------+---------------+------------| |>> | Monitor type select color | W2 | Closed | |---+---------------------------+---------------+------------| | | Monitor type select | W2 | Open | | | monochrome | | | |---+---------------------------+---------------+------------| |>> | IRQ12 PS/2 mouse enabled | W3 | Closed | |---+---------------------------+---------------+------------| | | PS/2 mouse disabled | W3 | Open | |---+---------------------------+---------------+------------| |>> | Parity enabled | W4 | Closed | |---+---------------------------+---------------+------------| | | Parity disabled | W4 | Open | |---+---------------------------+---------------+------------| |>> | CMOS memory normal | W5 | Open | | | operation | | | |---+---------------------------+---------------+------------| | | CMOS memory clear | W5 | Closed | |---+---------------------------+---------------+------------| |>> | Super I/O enabled | W7 | Open | |---+---------------------------+---------------+------------| | | Super I/O disabled | W7 | Closed | |---+---------------------------+---------------+------------| |>> | Flash BIOS write protect | W8 | Open | | | enabled | | | |---+---------------------------+---------------+------------| | | Flash BIOS write protect | W8 | Closed | | | disabled | | | |---+---------------------------+---------------+------------| |>> | PQFP not installed | W13 | Open | |---+---------------------------+---------------+------------| | | PQFP disabled by | W13 | pins 1 & 2 | | | Overdrive processor | | closed | |---+---------------------------+---------------+------------| | | PQFP manually disabled | W13 | pins 2 & 3 | | | | | closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | W15 | pins 1 & 2 | | | not alter | | closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | W31 | Open | | | not alter | | | |---+---------------------------+---------------+------------| |>> | Factory configured - do | W36 | Open | | | not alter | | | |---+---------------------------+---------------+------------| |>> | VGA IRQ9 disabled | W303 | Open | |---+---------------------------+---------------+------------| | | VGA IRQ9 enabled | W303 | Closed | |---+---------------------------+---------------+------------| |>> | Factory configured - do | SW1/3 | Off | | | not alter | | | |---+---------------------------+---------------+------------| |>> | Factory configured - do | SW1/4 | Off | | | not alter | | | |---+---------------------------+---------------+------------| | | VPU chip disabled | SW2/1 | On | |---+---------------------------+---------------+------------| | | VPU chip enabled | SW2/1 | Off | |---+---------------------------+---------------+------------| | | Video RAMDAC at snooping | SW2/2 | On | | | mode | | | |---+---------------------------+---------------+------------| | | Video RAMDAC at normal | SW2/2 | Off | | | mode | | | |---+---------------------------+---------------+------------| | | VGA BIOS disabled | SW2/3 | On | |---+---------------------------+---------------+------------| | | VGA BIOS enabled | SW2/3 | Off | |---+---------------------------+---------------+------------| | | External speaker disabled | SW2/4 | On | |---+---------------------------+---------------+------------| | | External speaker enabled | SW2/4 | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | | | |------+-------------+-------------+------------+------------| | 4MB | (1) 1M x 36 | NONE | NONE | NONE | |------+-------------+-------------+------------+------------| | 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE | | | 36 | 36 | 36 | | |------+-------------+-------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x | | | 36 | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE | | | | | 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 | |------+-------------+-------------+------------+------------| | 18MB | (1) 256K x | (1) 256K x | (1) 4M x | NONE | | | 36 | 36 | 36 | | |------+-------------+-------------+------------+------------| | 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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) 32K x 8 | |------------+---------------+---------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | W10 | W11 | W16 | W17 | W22 | W23 | W24 | |-------+-------+-------+-------+-------+------+------+------| | 64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & | 2 & | 1 & | | | | | | | 3 | 3 | 2 | |-------+-------+-------+-------+-------+------+------+------| | 128KB | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 1 & | 1 & | 2 & | | | | | | | 2 | 2 | 3 | |-------+-------+-------+-------+-------+------+------+------| | 256KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & | 2 & | 2 & | | | | | | | 3 | 3 | 3 | |------------------------------------------------------------| | Note:Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU CONFIGURATION | |------------------------------------------------------------| | Type | W33 | |----------------------------+-------------------------------| | All other CPU's | pins 1 & 2, 3 & 4 closed | |----------------------------+-------------------------------| | 80486SX | pins 2 & 3 closed | |----------------------------+-------------------------------| | 80486SX2 | pins 3 & 4 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | 80486DX4 CONFIGURATION | |------------------------------------------------------------| | 80486DX4 | W32 | W34 | |------------------+--------------------+--------------------| | Disabled | Open | Open | |------------------+--------------------+--------------------| | Enabled | pins 1 & 2 closed | pins 3 & 4 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | Switch 1/1 | Switch 1/2 | |------------------+--------------------+--------------------| | 25MHz | Off | On | |------------------+--------------------+--------------------| | 33MHz | On | On | |------------------+--------------------+--------------------| | 50iMHz | Off | On | |------------------+--------------------+--------------------| | 66iMHz | On | On | |------------------+--------------------+--------------------| | 75iMHz | Off | On | |------------------+--------------------+--------------------| | 100iMHz | On | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | DMA CHANNEL CONFIGURATION | |------------------------------------------------------------| | DMA Channel | W98 | W99 | |------------------+--------------------+--------------------| | Channel 1 | pins 1 & 2 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | Channel 2 | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |--------------+----------------------+----------------------| | 1MB | (2) 512K x 8 | NONE | |--------------+----------------------+----------------------| | 2MB | (2) 512K x 8 | (2) 256K x 8 | |------------------------------------------------------------| | Note: Bank 0 is factory installed and is not configurable. | +------------------------------------------------------------+