PACKARD BELL ============ PB400/401T Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2 Processor 16/20/25/33/50(internal)/66(internal)MHz Speed Chip Set OPTI Max. onboard 6MB (82C495 AT U77) OR 18MB (82C495B1 AT U77) DRAM Cache 64/128/256KB BIOS Phoenix Dimensions 330mm x 218mm I/O Options Fax/modem daughterboard, floppy drive interface, game port, IDE interface, multi-function connector (IDE interface LED, keylock, reset, SW_MODLR, Turbo LED), parallel port, PS/2 keyboard port, PS/2 mouse port, serial port, VGA feature connector, VGA port NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |----------------+----------+---------------------+----------| | PS/2 keyboard | J1 | Keyboard lock | J19 | |----------------+----------+---------------------+----------| | PS/2 mouse | J2 | Fax/modem | J21 | | | | daughterboard | | |----------------+----------+---------------------+----------| | VGA port | J3 | IDE interface | J25 | |----------------+----------+---------------------+----------| | Game port | J4 | Floppy drive | J27 | | | | interface | | |----------------+----------+---------------------+----------| | Parallel port | J5 | External speaker | J28 | | | | connector | | |----------------+----------+---------------------+----------| | Serial port B | J6 | Multi-function | J32 | | | | connector | | |----------------+----------+---------------------+----------| | External | J7 | CPU/chassis fan | J33 | | battery | | power (+12VDC) | | |----------------+----------+---------------------+----------| | VGA feature | J13 | Riser card | S1 | | connector | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | Internal battery enabled | J8 | Closed | |---+----------------------------------+--------+------------| | | Internal battery disabled | J8 | Open | |---+----------------------------------+--------+------------| |>> | Onboard Game port enabled | J12 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | Onboard Game port disabled | J12 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Monitor type select color | J16 | Closed | |---+----------------------------------+--------+------------| | | Monitor type select monochrome | J16 | Open | |---+----------------------------------+--------+------------| |>> | PS/2 mouse port enabled | J17 | Closed | |---+----------------------------------+--------+------------| | | PS/2 mouse port disabled | J17 | Open | |---+----------------------------------+--------+------------| |>> | Onboard IDE interface enabled | J24 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Onboard IDE interface disabled | J24 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Onboard floppy drive interface | J26 | pins 1 & 2 | | | enabled | | closed | |---+----------------------------------+--------+------------| | | Onboard floppy drive interface | J26 | pins 2 & 3 | | | disabled | | closed | |---+----------------------------------+--------+------------| |>> | Onboard speaker enabled | J29 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Onboard speaker disabled | J29 | pins 2 & 3 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | U77 | |---------+-------------+------------+-----------+-----------| | 2MB | (8) 41256 | (8) 41256 | NONE | Either | |---------+-------------+------------+-----------+-----------| | 6MB | (8) 41256 | (8) 41256 | (4) 1M x | Either | | | | | 9 | | |---------+-------------+------------+-----------+-----------| | 18MB | (8) 41256 | (8) 41256 | (4) 4M x | 82C495B1 | | | | | 9 | ONLY | |------------------------------------------------------------| | Note:256K x 9 SIMMs are not supported. 18MB | | configuration requires OPTI 82C495B1 DRAM controller. | | Banks 0 and 1 are soldered to the board and should | | not be altered. | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO CONFIGURATION | |------------------------------------------------------------| | Mode | J10 | J14 | |-----------------------------+--------------------+---------| | VGA port (J3) | pins 1 & 2 closed | Closed | |-----------------------------+--------------------+---------| | VGA feature connector (J13) | pins 1 & 2 closed | Open | |-----------------------------+--------------------+---------| | Disabled | pins 2 & 3 closed | N/A | +------------------------------------------------------------+ +------------------------------------------------------------+ | VRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |-----------------+---------------------+--------------------| | 512KB | (4) 44256 | NONE | |-----------------+---------------------+--------------------| | 1024KB | (4) 44256 | (4) 44256 | |------------------------------------------------------------| | Note:If Bank 1 sockets are omitted from board, board | | was factory installed with 1MB of VRAM. Bank 0 is | | soldered to the board and should not be altered. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT CONFIGURATION | |------------------------------------------------------------| | Modem | Port B | ISA | J18 | J20 | J101/JMOD | | (J21) | (J5) | Modem | | | * | |------------+--------+--------+--------+--------+-----------| | Disabled | COM2 | None | N/A | pins 1 | Closed | | | | | | & 2 | | |------------+--------+--------+--------+--------+-----------| | Disabled | COM2 | COM1 | pins 2 | pins 1 | Closed | | | | | & 3 | & 2 | | |------------+--------+--------+--------+--------+-----------| | Disabled | COM2 | COM3 | pins 1 | pins 1 | Closed | | | | | & 2 | & 2 | | |------------+--------+--------+--------+--------+-----------| | COM1 | COM2 | None | pins 1 | pins 1 | Open | | | | | & 2 | & 2 | | |------------+--------+--------+--------+--------+-----------| | COM3 | COM2 | None | pins 2 | pins 1 | Open | | | | | & 3 | & 2 | | |------------+--------+--------+--------+--------+-----------| | Disabled | COM4 | None | N/A | pins 2 | Closed | | | | | | & 3 | | |------------+--------+--------+--------+--------+-----------| | Disabled | COM4 | COM1 | pins 2 | pins 2 | Closed | | | | | & 3 | & 3 | | |------------+--------+--------+--------+--------+-----------| | Disabled | COM4 | COM3 | pins 1 | pins 2 | Closed | | | | | & 2 | & 3 | | |------------+--------+--------+--------+--------+-----------| | COM1 | COM4 | None | pins 1 | pins 2 | Open | | | | | & 2 | & 3 | | |------------+--------+--------+--------+--------+-----------| | COM3 | COM4 | None | pins 2 | pins 2 | Open | | | | | & 3 | & 3 | | |------------------------------------------------------------| | Note:* JMOD is a special block placed on J21, | | connecting pins 10 and 11 together diagonally. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT CONFIGURATION | |------------------------------------------------------------| | LPT | IRQ | J22 | J23 | |------------+-------+-------------------+-------------------| |>> | LPT1 | IRQ7 | pins 1 & 2 closed | pins 1 & 2 closed | |---+--------+-------+-------------------+-------------------| | | LPT1 | IRQ5 | pins 1 & 2 closed | pins 2 & 3 closed | |---+--------+-------+-------------------+-------------------| | | LPT2 | IRQ7 | pins 2 & 3 closed | pins 1 & 2 closed | |---+--------+-------+-------------------+-------------------| | | LPT2 | IRQ5 | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | CPU |J30/1 &|J30/3 |J30/5 |J30/7 |J30/9&10| J31 | J34 | | | 2 | & 4 | & 6 | & 8 | | | | |--------+-------+------+------+------+--------+------+------| |80486SX | Open |Closed| Open | Open | Open | Open | Open | |--------+-------+------+------+------+--------+------+------| |80487SX |Closed | Open |Closed| Open | Closed | Open | Open | |--------+-------+------+------+------+--------+------+------| |80486DX |Closed | Open |Closed|Closed| Open | Open | Open | |--------+-------+------+------+------+--------+------+------| |ODP486SX|Closed | Open |Closed|Closed| Open |Closed|Closed| |--------+-------+------+------+------+--------+------+------| |80486DX2|Closed | Open |Closed|Closed| Open | Open |Closed| +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | J35/pins 1 & 2 | J35/pins 3 & 4 | |------------------+--------------------+--------------------| | 16MHz | Closed | Closed | |------------------+--------------------+--------------------| | 20MHz | Open | Closed | |------------------+--------------------+--------------------| | 25MHz | Closed | Open | |------------------+--------------------+--------------------| | 33MHz | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Cache | Location | TAG (U81) | Dirty Bit | | | | | | (U84) | |-------+-------------+-----------+------------+-------------| | 64KB | (8) 8K x 8 | Banks 0 & | (1) 32K x | (1) 64K x 1 | | | | 1 | 8 | | |-------+-------------+-----------+------------+-------------| | 128KB | (4) 32K x 8 | Bank 0 | (1) 32K x | (1) 64K x 1 | | | | | 8 | | |-------+-------------+-----------+------------+-------------| | 256KB | (8) 32K x 8 | Banks 0 & | (1) 32K x | (1) 64K x 1 | | | | 1 | 8 | | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | J36/1 & | J36/3 | J36/5 | J36/7 | J36/9 | | | 2 | & 4 | & 6 | & 8 | & 10 | |--------------+---------+--------+--------+--------+--------| |>> | Disabled | Open | Open | Open | Open | Open | |---+----------+---------+--------+--------+--------+--------| | | 64KB | Open | Open | Open | Open | Open | |---+----------+---------+--------+--------+--------+--------| | | 128KB | Closed | Open | Closed | Closed | Open | |---+----------+---------+--------+--------+--------+--------| | | 256KB | Closed | Closed | Closed | Open | Closed | +------------------------------------------------------------+