PACKARD BELL ============ PB635 Processor 80286 Processor Speed 12MHz Chip Set C & T Max. Onboard DRAM 1MB Cache None BIOS MH Dimensions 330mm x 218mm I/O Options None NPU Options 80287 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------------+----------+----------------+----------| | Reset switch | J1 | Speaker | J3 | |---------------------+----------+----------------+----------| | Keylock | J2 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | NPU mode select synchronous with | J19 | pins 1 & 2 | | | CPU | | closed | |---+----------------------------------+--------+------------| | | NPU mode select asynchronous | J19 | pins 2 & 3 | | | with CPU | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |---------+--------------+------------+-----------+----------| | 512KB | (18) 41256 | NONE | NONE | NONE | |---------+--------------+------------+-----------+----------| | 1MB | (18) 41256 | (18) 41256 | NONE | NONE | |---------+--------------+------------+-----------+----------| | 2MB | (18) 41256 | (18) 41256 | (2) 256K | (2) 256K | | | | | x 9 | x 9 | |---------+--------------+------------+-----------+----------| | 3MB | (18) 41256 | (18) 41256 | (2) 1M x | NONE | | | | | 9 | | |---------+--------------+------------+-----------+----------| | 5MB | (18) 41256 | (18) 41256 | (2) 1M x | (2) 1M x | | | | | 9 | 9 | |------------------------------------------------------------| | Note:Banks 2 & 3 are used when an external memory card is | | installed. | +------------------------------------------------------------+