NEC TECHNOLOGIES, INC. ====================== READY 425, 433, & 466 Processor 80486SX/80487DX/80486DX/80486DX2 Processor 25/33/50(internal)/66(internal) MHz Speed Chip Set C & T Max. Onboard 64MB DRAM Cache None BIOS NEC Dimensions 330mm x 218mm I/O Options Fax/modem, floppy drive interface, IDE interface, multi-function connector (PS/2 mouse, PS/2 keyboard, power LED), parallel port, proprietary riser card, serial port, VGA port NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | Floppy drive | J1 | External battery | JP9 | | interface | | | | |------------------+----------+-------------------+----------| | IDE interface | J2 | Speaker | JP11 | |------------------+----------+-------------------+----------| | Main board power | J7 & J8 | Multi-function | P1 | | connector | | connector | | |------------------+----------+-------------------+----------| | RJ11 modem | J10 & | Parallel port | P2 | | interface | J11 | | | |------------------+----------+-------------------+----------| | Proprietary | JA-1 | Serial port | P3 | | riser card | | | | | connection | | | | |------------------+----------+-------------------+----------| | IDE interface | JP6 | VGA port | P4 | | LED | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper/Switch | Position | |-------------------------------+---------------+------------| |>> | Parallel port (P2) select | JP13 | pins 1 & 2 | | | LPT1/IRQ7 (378-37Fh) | | closed | |---+---------------------------+---------------+------------| | | Parallel port (P2) select | JP13 | pins 2 & 3 | | | LPT2/IRQ5 (278-27Fh) | | closed | |---+---------------------------+---------------+------------| |>> | Flash BIOS programable | JP14 | pins 1 & 2 | | | via network disabled | | closed | |---+---------------------------+---------------+------------| | | Flash BIOS programable | JP14 | pins 2 & 3 | | | via network enabled | | closed | |---+---------------------------+---------------+------------| |>> | Onboard video enabled | SW1/1 | Off | |---+---------------------------+---------------+------------| | | Onboard video disabled | SW1/1 | On | |---+---------------------------+---------------+------------| |>> | Floppy interface (J1) | SW1/2 | Off | | | enabled | | | |---+---------------------------+---------------+------------| | | Floppy interface (J1) | SW1/2 | On | | | disabled | | | |---+---------------------------+---------------+------------| |>> | System password enabled | SW1/3 | Off | |---+---------------------------+---------------+------------| | | System password disabled | SW1/3 | On | | | & cleared | | | |---+---------------------------+---------------+------------| |>> | Flash BIOS write enabled | SW1/4 | Off | |---+---------------------------+---------------+------------| | | Flash BIOS write disabled | SW1/4 | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP1 | JP2 | JP12 | |------------------+---------------+------------+------------| |>> | 80486SX PQFP | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | | | | closed | closed | closed | |---+--------------+---------------+------------+------------| | | 80486SX PGA | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | | | | closed | closed | closed | |---+--------------+---------------+------------+------------| | | 80487SX PGA | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | | | | closed | closed | closed | |---+--------------+---------------+------------+------------| | | 80486DX PGA | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | | | | closed | closed | closed | |---+--------------+---------------+------------+------------| | | 80486DX2 PGA | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Clock Speed | JP15 | |----------------------------+-------------------------------| | 25/50i MHz | pins 1 & 2 closed | |----------------------------+-------------------------------| | 33/66i MHz | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 4MB | (1) 1M x 36 | NONE | NONE | NONE | |------+-------------+-------------+------------+------------| | 5MB | (1) 1M x 36 | (1) 256K x | NONE | NONE | | | | 36 | | | |------+-------------+-------------+------------+------------| | 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | NONE | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 13MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 256K x | | | | | 36 | 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 | |------+-------------+-------------+------------+------------| | 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE | | | | 36 | | | |------+-------------+-------------+------------+------------| | 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 25MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 37MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 49MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | +------------------------------------------------------------+