COMPUTREND SYSTEMS, INC. ======================== PCI486 AL2 Processor UMC486SX/80486SX/SL80486SX/UMC486DX/AM486DX/80486DX/ SL80486DX/CX486DX2/AM486DX2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/P24D/P24T Processor 25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/100(internal)MHz Speed Chip Set ALI Max. 64MB Onboard DRAM Cache 128/256/512KB BIOS AMI Dimensions 270mm x 220mm I/O 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE Options interfaces (2), parallel port, serial ports (2) NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-----------------+-----------+-----------------+------------| | Serial port 1 | CN1 | Turbo LED | JFP pins | | | | | 12 & 13 | |-----------------+-----------+-----------------+------------| | Serial port 2 | CN2 | Turbo switch | JFP pins | | | | | 15 - 17 | |-----------------+-----------+-----------------+------------| | Parallel port | CN3 | Reset switch | JFP pins | | | | | 19 & 20 | |-----------------+-----------+-----------------+------------| | Floppy drive | CN4 | IDE interface | JFPA | | interface | | LED | | |-----------------+-----------+-----------------+------------| | IDE interface 2 | CN5 | Chassis fan | JFAN | | | | power | | |-----------------+-----------+-----------------+------------| | IDE interface 1 | CN6 | Green PC | JG1 | | | | connector | | | | | (monitor) | | |-----------------+-----------+-----------------+------------| | External | JB1 | Green PC LED | JG2 | | battery | | | | |-----------------+-----------+-----------------+------------| | Power LED & | JFP pins | Green PC | JG3 | | keylock | 1 - 5 | connector | | |-----------------+-----------+-----------------+------------| | Speaker | JFP pins | 32-bit PCI | PC1 - PC3 | | | 7 - 10 | slots | | |------------------------------------------------------------| | Note: The location of JFAN is unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |----------------------------------+--------+----------------| |>> | Battery type select internal | JB1 | Pins 2 & 3 | | | | | closed | |---+------------------------------+--------+----------------| | | Battery type select external | JB1 | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 4MB | (1) 1M x 36 | None | None | None | |------+-------------+-------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None | |------+-------------+-------------+------------+------------| | 20MB | (1) 1M x 36 | (1) 4M x 36 | None | None | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 28MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 4M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 16MB | (1) 4M x 36 | None | None | None | |------+-------------+-------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None | |------+-------------+-------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |-----------+--------------+-------------+-------------------| | 128KB | (4) 32K x 8 | None | (1) 8K/16K/32 x 8 | |-----------+--------------+-------------+-------------------| | 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 16K/32K x 8 | |-----------+--------------+-------------+-------------------| | 256KB (B) | (4) 64K x 8 | None | (1) 16K/32K x 8 | |-----------+--------------+-------------+-------------------| | 512KB | (4) 128K x 8 | None | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JS1 | JS2 | JS3 | |-----------+----------------+---------------+---------------| | 128KB | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | | | closed | closed | closed | |-----------+----------------+---------------+---------------| | 256KB (A) | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | | | closed | closed | closed | |-----------+----------------+---------------+---------------| | 256KB (B) | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | | | closed | closed | closed | |-----------+----------------+---------------+---------------| | 512KB | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JC1 | JC2 | JC3 | JC4 | |---------------+-------+--------------+-------------+-------| | UMC486SX | 2 & 3 | 2 & 3 | Open | 1 & 2 | |---------------+-------+--------------+-------------+-------| | 80486SX | Open | 2 & 3 | Open | Open | |---------------+-------+--------------+-------------+-------| | SL80486SX | Open | 2 & 3 | Open | 2 & 3 | |---------------+-------+--------------+-------------+-------| | UMC486DX | 2 & 3 | 1 & 2, 3 & 4 | Open | 1 & 2 | |---------------+-------+--------------+-------------+-------| | AM486DX | 2 & 3 | 1 & 2, 3 & 4 | Open | Open | |---------------+-------+--------------+-------------+-------| | 80486DX | 2 & 3 | 1 & 2, 3 & 4 | Open | Open | |---------------+-------+--------------+-------------+-------| | SL80486DX | 2 & 3 | 1 & 2, 3 & 4 | Open | 2 & 3 | |---------------+-------+--------------+-------------+-------| | CX486DX2 | 2 & 3 | 1 & 2, 3 & 4 | 4 & 5 | 4 & 5 | |---------------+-------+--------------+-------------+-------| | AM486DX2 | 2 & 3 | 1 & 2, 3 & 4 | 1 & 2 5 & 6 | 2 & 3 | | (V8B) | | | | | |---------------+-------+--------------+-------------+-------| | AM486DX2 | 2 & 3 | 1 & 2, 3 & 4 | Open | Open | | (V8T) | | | | | |---------------+-------+--------------+-------------+-------| | AM486DX2 | 2 & 3 | 1 & 2, 3 & 4 | Open | Open | |---------------+-------+--------------+-------------+-------| | 80486DX2 | 2 & 3 | 1 & 2, 3 & 4 | Open | Open | |---------------+-------+--------------+-------------+-------| | SL80486DX2 | 2 & 3 | 1 & 2, 3 & 4 | Open | 2 & 3 | |---------------+-------+--------------+-------------+-------| | SL80486DX2 | 1 & 2 | 1 & 2, 3 & 4 | Open | 2 & 3 | | (OD) | | | | | |---------------+-------+--------------+-------------+-------| | AM486DX4 | 2 & 3 | 1 & 2, 3 & 4 | 1 & 2 5 & 6 | 2 & 3 | | (V8B) | | | | | |---------------+-------+--------------+-------------+-------| | AM486DX4 | 2 & 3 | 1 & 2, 3 & 4 | Open | Open | | (V8T) | | | | | |---------------+-------+--------------+-------------+-------| | 80486DX4 | 2 & 3 | 1 & 2, 3 & 4 | Open | 2 & 3 | |---------------+-------+--------------+-------------+-------| | P24D | 2 & 3 | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 | |---------------+-------+--------------+-------------+-------| | P24T | 2 & 3 | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CON'T) | |------------------------------------------------------------| | Type | JC5 | JC6 | JC7 | JC8 | JC9 | |-----------------+-------+-------+----------+--------+------| | UMC486SX | 1 & 2 | 1 & 2 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | 80486SX | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | SL80486SX | 2 & 3 | 2 & 3 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | UMC486DX | 1 & 2 | 1 & 2 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | AM486DX | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | 80486DX | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | SL80486DX | 2 & 3 | 2 & 3 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | CX486DX2 | 4 & 5 | 4 & 5 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | AM486DX2 (V8B) | 2 & 3 | 2 & 3 | 2 & 3, 4 | Closed | Open | | | | | & 5 | | | |-----------------+-------+-------+----------+--------+------| | AM486DX2 (V8T) | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | AM486DX2 | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | 80486DX2 | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | SL80486DX2 | 2 & 3 | 2 & 3 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | SL80486DX2 (OD) | 2 & 3 | 2 & 3 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | AM486DX4 (V8B) | 2 & 3 | 2 & 3 | 2 & 3, 4 | Closed | Open | | | | | & 5 | | | |-----------------+-------+-------+----------+--------+------| | AM486DX4 (V8T) | 1 & 2 | Open | 1 & 2 | Open | Open | |-----------------+-------+-------+----------+--------+------| | 80486DX4 | 2 & 3 | 2 & 3 | 1 & 2 | Closed | Open | |-----------------+-------+-------+----------+--------+------| | P24D | 2 & 3 | 2 & 3 | 2 & 3, 4 | Closed | Open | | | | | & 5 | | | |-----------------+-------+-------+----------+--------+------| | P24T | 2 & 3 | 2 & 3 | 2 & 3, 4 | Closed | Open | | | | | & 5 | | | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | JK1 | JK2 | JK3 | |---------+---------------------+-------------------+--------| | 25MHz | Open | Pins 2 & 3 closed | Open | |---------+---------------------+-------------------+--------| | 33MHz | Pins 1 & 2, 3 & 4 | Pins 2 & 3 closed | Open | | | closed | | | |---------+---------------------+-------------------+--------| | 40MHz | Pins 1 & 2 closed | Pins 1 & 2 closed | Closed | |---------+---------------------+-------------------+--------| | 50iMHz | Open | Pins 2 & 3 closed | Open | |---------+---------------------+-------------------+--------| | 66iMHz | Pins 1 & 2, 3 & 4 | Pins 2 & 3 closed | Open | | | closed | | | |---------+---------------------+-------------------+--------| | 75iMHz | Open | Pins 2 & 3 closed | Open | |---------+---------------------+-------------------+--------| | 80iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed | Closed | |---------+---------------------+-------------------+--------| | 100iMHz | Pins 1 & 2, 3 & 4 | Pins 2 & 3 closed | Open | | | closed | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | J4 | JP8 | |-------------+------------------------------------+---------| | | 3.45v | Pins 4 & 10, 5 & 11, 6 & 12 closed | Open | |---+---------+------------------------------------+---------| | | 4v | Pins 4 & 10, 5 & 11, 6 & 12 closed | Closed | |---+---------+------------------------------------+---------| |>> | 5v | Pins 1 & 7, 2 & 8, 3 & 9 closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | DMA CONFIGURATION | |------------------------------------------------------------| | DMA | JP17 | JP18 | JP23 | JP24 | |-----------+------------+-----------+-----------+-----------| | DMA 1 | Closed | Closed | Open | Open | |-----------+------------+-----------+-----------+-----------| | DMA 3 | Open | Open | Closed | Closed | +------------------------------------------------------------+