PC BRAND ======== VALUE SERIES 486 Processor 80386DX/80486SX/80487SX/80486DX/80486DX2 Processor 25/33/40/50(internal)MHz Speed Chip Set Unidentified Max. Onboard 32MB DRAM Cache 64/128/256/1024KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options Parallel port, serial ports (2), VGA port, VGA feature connector, floppy drive interface, IDE interface, game interface, riser slot NPU Options 80387DX/3167/4167 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------------+----------+----------------+----------| | VGA port | CN1 | IDE interface | PL6 | |---------------------+----------+----------------+----------| | Parallel port | CN2 | Reset switch | PL9 | |---------------------+----------+----------------+----------| | Serial port 1 | CN3 | Turbo LED | PL12 | |---------------------+----------+----------------+----------| | Serial port 2 | CN4 | IDE interface | PL14 | | | | LED | | |---------------------+----------+----------------+----------| | Game interface | PL3 | VGA feature | PL19 | | | | connector | | |---------------------+----------+----------------+----------| | Floppy drive | PL5 | Riser Card | SL1 | | interface | | | | |------------------------------------------------------------| | Note: The location of jumpers PL9, PL12, PL14 are | | unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | Factory configured - do not | JP1 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP2 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP3 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP3 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP4 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP5 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP6 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP7 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP8 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP9 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP10 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP11 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP12 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP13 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP14 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP15 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP16 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP17 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP18 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP19 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP20 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP21 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP22 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP23 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP24 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP25 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP26 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP27 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP28 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | External speaker enabled | PL20 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | External speaker disabled | PL20 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | System security enabled | W4 | Closed | |---+----------------------------------+--------+------------| | | System security disabled | W4 | Open | |---+----------------------------------+--------+------------| |>> | Game port enabled | W13 | Open | |---+----------------------------------+--------+------------| | | Game port disabled | W13 | Closed | |---+----------------------------------+--------+------------| |>> | Floppy drive interface enabled | W19 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Floppy drive interface disabled | W19 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | IDE interface enabled | W20 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | IDE interface disabled | W20 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | External speaker enabled | W28 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | External speaker disabled | W28 | pins 1 & 2 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS (CON'T) | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | 80486 burst mode select 2-1-1-1 | W44 | Open | |---+----------------------------------+--------+------------| | | 80486 burst mode select 3-2-2-2 | W44 | Closed | |---+----------------------------------+--------+------------| |>> | Cache wait state select 0 wait | W45 | Closed | | | states | | | |---+----------------------------------+--------+------------| | | Cache wait state select 1 wait | W45 | Open | | | state | | | |---+----------------------------------+--------+------------| |>> | Parallel port IRQ select IRQ5 | W49 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | Parallel port IRQ select IRQ7 | W49 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | On board VGA wait state select 0 | W55 | Closed | | | wait states | | | |---+----------------------------------+--------+------------| | | On board VGA wait state select 1 | W55 | Open | | | wait state | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | W56 | N/A | | | alter | | | |------------------------------------------------------------| | Note: The location of jumpers PL 20, W28, W44, & W45 are | | unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 1MB | (4) 256K x 9 | NONE | |------------------+--------------------+--------------------| | 2MB | (4) 256K x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 4MB | (4) 1M x 9 | NONE | |------------------+--------------------+--------------------| | 5MB | (4) 256K x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 5MB | (4) 1M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 8MB | (4) 1M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 16MB | (4) 4M x 9 | NONE | |------------------+--------------------+--------------------| | 17MB | (4) 4M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 17MB | (4) 256K x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 20MB | (4) 4M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 20MB | (4) 1M x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 32MB | (4) 4M x 9 | (4) 4M x 9 | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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) 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 | |------------+---------------+---------------+---------------| | 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 128K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | W18 | W26 | W30 | W31 | W32 | |----------+----------+----------+---------+--------+--------| | None | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 128KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 128KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 256KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 1MB | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | W33 | W34 | W35 | W36 | W37 | |----------+----------+----------+---------+--------+--------| | None | Open | 1 & 2 | Open | Open | Open | |----------+----------+----------+---------+--------+--------| | 64KB | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 128KB | 1 & 2 | 1 & 2 | Open | 1 & 2 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 128KB | Open | 1 & 2 | Open | 2 & 3 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 256KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 1MB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | W38 | W39 | W40 | W41 | W42 | |----------+----------+---------+--------+---------+---------| | None | Open | Open | Open | Open | Open | |----------+----------+---------+--------+---------+---------| | 64KB | 2 & 3 | 2 & 3 | 2 & 3 | Open | Open | |----------+----------+---------+--------+---------+---------| | 128KB | 1 & 2 | 1 & 2 | 1 & 2 | Closed | Open | |----------+----------+---------+--------+---------+---------| | 128KB | 1 & 2 | 1 & 2 | 1 & 2 | Closed | Closed | |----------+----------+---------+--------+---------+---------| | 256KB | 2 & 3 | 2 & 3 | 2 & 3 | Open | Open | |----------+----------+---------+--------+---------+---------| | 1MB | 2 & 3 | 2 & 3 | 2 & 3 | Open | Open | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | W43 | W46 | W68 | W69 | |----------+-----------+--------+--------+-------------------| | None | Open | Open | Open | Open | |----------+-----------+--------+--------+-------------------| | 64KB | Closed | Open | Open | Open | |----------+-----------+--------+--------+-------------------| | 128KB | Open | Open | Open | pins 1 & 2 closed | |----------+-----------+--------+--------+-------------------| | 128KB | Closed | Open | Open | Open | |----------+-----------+--------+--------+-------------------| | 256KB | Closed | Open | Open | pins 2 & 3 closed | |----------+-----------+--------+--------+-------------------| | 1MB | Closed | Open | Open | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | W48 | W54 | W57 | W60 | W61 | |--------------+---------+---------+---------+-------+-------| | 80386DX-40 | 2 & 3 | 1 & 2 | Closed | 1 & 2 | 2 & 3 | |--------------+---------+---------+---------+-------+-------| | 80486SX-25 | 3 & 4 | 2 & 3 | Open | 2 & 3 | 1 & 2 | |--------------+---------+---------+---------+-------+-------| | 80486DX-33 | 3 & 4 | 2 & 3 | Closed | 1 & 2 | 2 & 3 | |--------------+---------+---------+---------+-------+-------| | 80486DX2-50 | 3 & 4 | 2 & 3 | Closed | 1 & 2 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CON'T) | |------------------------------------------------------------| | Type | W62 | W63 | W64 | W65 | |--------------+--------------+--------+------------+--------| | 80386DX-40 | pins 2 & 3 | Open | pins 1 & 2 | Closed | | | closed | | closed | | |--------------+--------------+--------+------------+--------| | 80486SX-25 | pins 1 & 2 | Closed | pins 2 & 3 | Open | | | closed | | closed | | |--------------+--------------+--------+------------+--------| | 80486DX-33 | pins 2 & 3 | Closed | pins 2 & 3 | Open | | | closed | | closed | | |--------------+--------------+--------+------------+--------| | 80486DX2-50 | pins 2 & 3 | Closed | pins 2 & 3 | Open | | | closed | | closed | | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CON'T) | |------------------------------------------------------------| | Type | W66 | W67 | W70 | W71 | |-------------+--------+--------+---------------+------------| | 80386DX-40 | Open | Open | pins 2 & 3 | pins 2 & 3 | | | | | closed | closed | |-------------+--------+--------+---------------+------------| | 80486SX-25 | Closed | Closed | pins 1 & 2 | pins 1 & 2 | | | | | closed | closed | |-------------+--------+--------+---------------+------------| | 80486DX-33 | Closed | Closed | pins 1 & 2 | pins 1 & 2 | | | | | closed | closed | |-------------+--------+--------+---------------+------------| | 80486DX2-50 | Closed | Closed | pins 1 & 2 | pins 1 & 2 | | | | | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | W47 | |------------------------------+-----------------------------| | 1x | Closed | |------------------------------+-----------------------------| | 2x | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT CONFIGURATION | |------------------------------------------------------------| | Setting | W21 | W29 | |------------------+--------------------+--------------------| | LPT1 enabled | pins 2 & 3 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | LPT2 disabled | pins 1 & 2 closed | pins 2 & 3 closed | |------------------------------------------------------------| | Note: The location of W29 is unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 CONFIGURATION | |------------------------------------------------------------| | Setting | W17 | W22 | |------------------+--------------------+--------------------| | COM1 enabled | pins 1 & 2 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | COM1 disabled | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 2 CONFIGURATION | |------------------------------------------------------------| | Setting | W15 | W16 | |------------------+--------------------+--------------------| | COM2 enabled | pins 1 & 2 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | COM2 disabled | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON BOARD VGA CONFIGURATION | |------------------------------------------------------------| | Setting | W14 | W50 | |--------------------+-------------------+-------------------| | Enabled | Open | Closed | |--------------------+-------------------+-------------------| | Disabled | Closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | VRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 512KB | (2) 256K x 4 | NONE | |------------------+--------------------+--------------------| | 1MB | (2) 256K x 4 | (2) 256K x 4 | +------------------------------------------------------------+ +------------------------------------------------------------+ | VRAM JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | W58 | W59 | |--------------------+--------------------+------------------| | 512KB | Closed | Open | |--------------------+--------------------+------------------| | 1MB | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTE | |------------------------------------------------------------| | Note: The location of pin 1 is unidentified. | +------------------------------------------------------------+