COMPUTREND SYSTEMS, INC. ======================== PCI PENTIUM AL4 Processor Pentium Processor 75/90/100/120MHz Speed Chip Set ALI Max. Onboard 128MB DRAM Cache 256/512/1024KB BIOS AMI Dimensions 330mm x 220mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) NPU Options None +------------------------------------------------------------+ | 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 | Green PC | JG1 | | | | connector | | | | | (monitor) | | |-----------------+-----------+-----------------+------------| | IDE interface 1 | CN6 | Green PC LED | JG2 | |-----------------+-----------+-----------------+------------| | External | JB1 | Green PC | JG3 | | battery | | connector | | |-----------------+-----------+-----------------+------------| | Power LED & | JFP pins | Chassis fan | JP10 | | keylock | 1 - 5 | power | | |-----------------+-----------+-----------------+------------| | Speaker | JFP pins | 32-bit PCI | PC1 - PC4 | | | 7 - 10 | slots | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | Battery type select internal | JB1 | Pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | Battery type select external | JB1 | Closed | |---+----------------------------------+--------+------------| | | CMOS memory clear | JB1 | Pins 3 & 4 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Flash BIOS voltage select 12v | JP2 | Pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Flash BIOS voltage select 5v | JP2 | Pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Power good signal detect from | JP5 | Pins 2 & 3 | | | board | | closed | |---+----------------------------------+--------+------------| | | Power good signal detect from | JP5 | Pins 1 & 2 | | | power supply | | closed | |---+----------------------------------+--------+------------| | | IDE interface enabled | JP7 | Open | |---+----------------------------------+--------+------------| | | IDE interface disabled | JP7 | Closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP8 | N/A | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 2MB | (2) 256K x 36 | NONE | |------------------+--------------------+--------------------| | 4MB | (2) 512K x 36 | NONE | |------------------+--------------------+--------------------| | 4MB | (2) 256K x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 6MB | (2) 512K x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 6MB | (2) 256K x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 8MB | (2) 1M x 36 | NONE | |------------------+--------------------+--------------------| | 8MB | (2) 512K x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 10MB | (2) 1M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 10MB | (2) 256K x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 12MB | (2) 1M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 12MB | (2) 512K x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 16MB | (2) 2M x 36 | NONE | |------------------+--------------------+--------------------| | 16MB | (2) 1M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 18MB | (2) 2M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 18MB | (2) 256K x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 20MB | (2) 2M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 20MB | (2) 512K x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 24MB | (2) 2M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 24MB | (2) 1M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 32MB | (2) 4M x 36 | NONE | |------------------+--------------------+--------------------| | 32MB | (2) 2M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 34MB | (2) 4M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 34MB | (2) 256K x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 36MB | (2) 4M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 36MB | (2) 512K x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 40MB | (2) 4M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 40MB | (2) 1M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 48MB | (2) 4M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 48MB | (2) 2M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 64MB | (2) 8M x 36 | NONE | |------------------+--------------------+--------------------| | 64MB | (2) 4M x 36 | (2) 4M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 66MB | (2) 8M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 66MB | (2) 256K x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 68MB | (2) 8M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 68MB | (2) 512K x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 72MB | (2) 8M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 72MB | (2) 1M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 80MB | (2) 8M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 80MB | (2) 2M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 96MB | (2) 8M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 96MB | (2) 4M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 128MB | (2) 8M x 36 | (2) 8M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | TAG | |------------------+--------------------+--------------------| | 256KB | (8) 32K x 8 | (1) 8K x 8 | |------------------+--------------------+--------------------| | 512KB | (8) 64K x 8 | (1) 16K x 8 | |------------------+--------------------+--------------------| | 1MB | (8) 128K x 8 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JS2 | JS3 | |------------------+--------------------+--------------------| | 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 512KB | Pins 1 & 2 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 1MB | Pins 2 & 3 closed | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | JK1 | JR1 | |----------------+--------------------------+----------------| | 75MHz | Open | Open | |----------------+--------------------------+----------------| | 90MHz | Pins 1 & 2 closed | Open | |----------------+--------------------------+----------------| | 100MHz | Pins 1 & 2, 3 & 4 closed | Open | |----------------+--------------------------+----------------| | 120MHz | Pins 1 & 2 closed | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | JP12 | |-------------------------------+----------------------------| | 3.4v | Closed | |-------------------------------+----------------------------| | 3.5v | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | DMA CONFIGURATION | |------------------------------------------------------------| | DMA | CP2 | CP3 | CP4 | CP5 | |-----------+------------+-----------+-----------+-----------| | DMA 1 | Open | Closed | Open | Closed | |-----------+------------+-----------+-----------+-----------| | DMA 3 | Closed | Open | Closed | Open | +------------------------------------------------------------+