PACKARD BELL ============ 486 MODEL 3X3 SERIES, 4X4 SERIES Device Type Mainboard Processor 80486SX/80486SX2/80486DX/80486DX2/P24T Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set OPTI Video Chip Set Cirrus Logic Maximum Onboard 64MB Memory Maximum Video Unidentified Memory Cache 128/512KB BIOS Phoenix Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slot, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | PS/2 mouse port | J2 | IDE interface | J23 | |------------------+----------+-------------------+----------| | VGA port | J3 | IDE interface | J24 | |------------------+----------+-------------------+----------| | Parallel port | J5 | Front panel | J34 | | | | connector | | |------------------+----------+-------------------+----------| | Serial port 1 | J6 | Keylock | J35 | |------------------+----------+-------------------+----------| | VGA feature | J14 | Chassis fan power | J38 | | connector | | | | |------------------+----------+-------------------+----------| | Floppy drive | J21 | Riser slot | SL1 | | interface | | | | |------------------+----------+-------------------+----------| | Modem connector | J22 | 32-bit VESA local | SL2 | | | | bus slot | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |-------------------------------------+-------+--------------| |>> | Factory configured - do not | J4 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Monitor type select color | J8 | Closed | |---+---------------------------------+-------+--------------| | | Monitor type select monochrome | J8 | Open | |---+---------------------------------+-------+--------------| |>> | VGA IRQ9 disabled | J9 | Open | |---+---------------------------------+-------+--------------| | | VGA IRQ9 enabled | J9 | Closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | J10 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | J11 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Boot block normal operation | J17 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | Boot block enabled | J17 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | Parity disabled | J18 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | Parity enabled | J18 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | On board video enabled | J19 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | On board video disabled | J19 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | On board I/O enabled | J20 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | On board I/O disabled | J20 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | J29 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | On board speaker enabled | J30 | Pins 3 & 4 | | | | | closed | |---+---------------------------------+-------+--------------| | | On board speaker disabled | J30 | Open | |---+---------------------------------+-------+--------------| |>> | LDEV# enabled | J33 | Closed | |---+---------------------------------+-------+--------------| | | LDEV# disabled | J33 | Open | |---+---------------------------------+-------+--------------| |>> | Speaker enabled | J36 | Pins 3 & 4 | | | | | closed | |---+---------------------------------+-------+--------------| | | Speaker disabled | J36 | Open | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | J39 | Open | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | J40 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | J41 | Unidentified | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | SIMM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |----------+------------------+-----------------+------------| | 1MB | (1) 256K x 36 | None | 4MB | |----------+------------------+-----------------+------------| | 2MB | (1) 512K x 36 | None | 4MB | |----------+------------------+-----------------+------------| | 2MB | (1) 256K x 36 | (1) 256K x 36 | 4MB | |----------+------------------+-----------------+------------| | 3MB | (1) 512K x 36 | (1) 256K x 36 | 4MB | |----------+------------------+-----------------+------------| | 4MB | (1) 1M x 36 | None | 4MB | |----------+------------------+-----------------+------------| | 4MB | (1) 512K x 36 | (1) 512K x 36 | 4MB | |----------+------------------+-----------------+------------| | 5MB | (1) 1M x 36 | (1) 256K x 36 | 4MB | |----------+------------------+-----------------+------------| | 6MB | (1) 1M x 36 | (1) 512K x 36 | 4MB | |----------+------------------+-----------------+------------| | 8MB | (1) 2M x 36 | None | 4MB | |----------+------------------+-----------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | 4MB | |----------+------------------+-----------------+------------| | 9MB | (1) 2M x 36 | (1) 256K x 36 | 4MB | |----------+------------------+-----------------+------------| | 10MB | (1) 2M x 36 | (1) 512K x 36 | 4MB | |----------+------------------+-----------------+------------| | 12MB | (1) 2M x 36 | (1) 1M x 36 | 4MB | |----------+------------------+-----------------+------------| | 12MB | (1) 1M x 36 | (1) 2M x 36 | 4MB | |----------+------------------+-----------------+------------| | 16MB | (1) 4M x 36 | None | 4MB | |----------+------------------+-----------------+------------| | 16MB | (1) 2M x 36 | (1) 2M x 36 | 4MB | |----------+------------------+-----------------+------------| | 17MB | (1) 4M x 36 | (1) 256K x 36 | 4MB | |----------+------------------+-----------------+------------| | 18MB | (1) 4M x 36 | (1) 512K x 36 | 4MB | |----------+------------------+-----------------+------------| | 20MB | (1) 4M x 36 | (1) 1M x 36 | 4MB | |----------+------------------+-----------------+------------| | 24MB | (1) 4M x 36 | (1) 2M x 36 | 4MB | |----------+------------------+-----------------+------------| | 32MB | (1) 8M x 36 | None | 4MB | |----------+------------------+-----------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | 4MB | |----------+------------------+-----------------+------------| | 33MB | (1) 8M x 36 | (1) 256K x 36 | 4MB | |----------+------------------+-----------------+------------| | 34MB | (1) 8M x 36 | (1) 512K x 36 | 4MB | |----------+------------------+-----------------+------------| | 36MB | (1) 8M x 36 | (1) 1M x 36 | 4MB | |----------+------------------+-----------------+------------| | 40MB | (1) 8M x 36 | (1) 2M x 36 | 4MB | |----------+------------------+-----------------+------------| | 48MB | (1) 8M x 36 | (1) 4M x 36 | 4MB | |----------+------------------+-----------------+------------| | 64MB | (1) 8M x 36 | (1) 8M x 36 | 4MB | |------------------------------------------------------------| | Note: If J37 is set to enabled, add 4 MB to the size | | column to get correct memory size. If 64MB is | | installed, J37 must be disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON BOARD MEMORY CONFIGURATION | |------------------------------------------------------------| | Setting | J37 | |-----------------------------------+------------------------| |>> | Enabled | Open | |------+----------------------------+------------------------| | | Disabled | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |------------+---------------+---------------+---------------| | 128KB | (4) 32K x 8 | None | Unidentified | |------------+---------------+---------------+---------------| | 512KB | (4) 64K x 8 | (4) 64K x 8 | Unidentified | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | J26 | |----------------------------+-------------------------------| | 128KB | Open | |----------------------------+-------------------------------| | 512KB | Pins 1 & 2, 3 & 4 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO MEMORY CONFIGURATION | |------------------------------------------------------------| | Note: The size of the video memory is unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | Speed | J25 | |----------------------------+-------------------------------| | 25MHz | Pins 1 & 2 closed | |----------------------------+-------------------------------| | 33MHz | Pins 2 & 3 closed | |----------------------------+-------------------------------| | 50iMHz | Pins 1 & 2 closed | |----------------------------+-------------------------------| | 66iMHz | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | J31 | |----------------------------+-------------------------------| | 80486SX | Pins 5 & 6 closed | |----------------------------+-------------------------------| | 80486SX2 | Pins 1 & 2, 3 & 4 closed | |----------------------------+-------------------------------| | 80486DX | Pins 1 & 2, 3 & 4 closed | |----------------------------+-------------------------------| | 80486DX2 | Pins 1 & 2, 3 & 4 closed | |----------------------------+-------------------------------| | P24T | Pins 1 & 2, 3 & 4 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | J28 | |-----------------------------+------------------------------| | SL enhanced | Pins 1 & 2 closed | |-----------------------------+------------------------------| | Non SL enhanced | Pins 2 & 3 closed | |-----------------------------+------------------------------| | P24T | Pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION | |------------------------------------------------------------| | Voltage | J32 | |----------------------------+-------------------------------| | | 3.3v | Pins 1 & 3, 2 & 4 closed | |---+------------------------+-------------------------------| |>> | 5v | Pins 3 & 5, 4 & 6 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DMA CHANNEL SELECTION | |------------------------------------------------------------| | Channel | J15 | J16 | |------------------+--------------------+--------------------| |>> | 1 | Pins 1 & 2 closed | Pins 1 & 2 closed | |----+-------------+--------------------+--------------------| | | 3 | Pins 2 & 3 closed | Pins 2 & 3 closed | +------------------------------------------------------------+