J-MARK COMPUTER CORPORATION =========================== J-648AP Processor CX M1/IBM 6X86/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set SIS Video Chip Set None Maximum Onboard 512MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 250mm x 220mm I/O Options 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VGA feature connector, VGA interface, IR connector NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | Chassis fan power | CN1 | Parallel port | J6 | |-------------------+----------+------------------+----------| | Speaker | CN2 | Serial port 2 | J7 | |-------------------+----------+------------------+----------| | Reset switch | CN3 | Floppy drive | J8 | | | | interface | | |-------------------+----------+------------------+----------| | Turbo LED | CN4 | IR connector | J9 | |-------------------+----------+------------------+----------| | Turbo switch | CN5 | VGA feature | J10 | | | | connector | | |-------------------+----------+------------------+----------| | IDE interface LED | CN6 | VGA interface | J11 | |-------------------+----------+------------------+----------| | Green PC | CN7 | IDE interface 2 | J14 | | connector | | | | |-------------------+----------+------------------+----------| | Power LED & | CN8 | IDE interface 1 | J15 | | keylock | | | | |-------------------+----------+------------------+----------| | PS/2 mouse | J1 | 32-bit PCI slots | PC1 - | | interface | | | PC3 | |-------------------+----------+------------------+----------| | Serial port 1 | J2 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |-------------------------------------+-------+--------------| |>> | CMOS memory normal operation | J18 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | CMOS memory clear | J18 | Pins 3 & 4 | | | | | closed | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 12v | JP5 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 5v | JP5 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP10 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP18 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP25 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| | | Monitor type select color | JP29 | Closed | |---+---------------------------------+-------+--------------| | | Monitor type select monochrome | JP29 | Open | |---+---------------------------------+-------+--------------| | | PS/2 mouse IRQ12 enabled | JP48 | Closed | |---+---------------------------------+-------+--------------| | | PS/2 mouse IRQ12 disabled | JP48 | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 4MB | (2) 512K x 36 | None | |------------------+--------------------+--------------------| | 8MB | (2) 1M x 36 | None | |------------------+--------------------+--------------------| | 16MB | (2) 2M x 36 | None | |------------------+--------------------+--------------------| | 16MB | (2) 1M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 24MB | (2) 2M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 32MB | (2) 4M x 36 | None | |------------------+--------------------+--------------------| | 32MB | (2) 2M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 40MB | (2) 4M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 48MB | (2) 4M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 64MB | (2) 8M x 36 | None | |------------------+--------------------+--------------------| | 64MB | (2) 4M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 72MB | (2) 8M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 80MB | (2) 8M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 96MB | (2) 8M x 36 | (2) 4M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 128MB | (2) 8M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 128MB | (2) 16M x 36 | None | |------------------+--------------------+--------------------| | 136MB | (2) 16M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 144MB | (2) 16M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 160MB | (2) 16M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 192MB | (2) 16M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 256MB | (2) 32M x 36 | None | |------------------+--------------------+--------------------| | 256MB | (2) 16M x 36 | (2) 16M x 36 | |------------------+--------------------+--------------------| | 264MB | (2) 32M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 272MB | (2) 32M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 288MB | (2) 32M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 320MB | (2) 32M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 384MB | (2) 32M x 36 | (2) 16M x 36 | |------------------+--------------------+--------------------| | 512MB | (2) 32M x 36 | (2) 32M x 36 | |------------------------------------------------------------| | Note: Board accepts EDO memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | TAG | |------------------+--------------------+--------------------| | 256KB | (2) 32K x 32 | (1) 32K x 8 | |------------------+--------------------+--------------------| | 512KB | (2) 64K x 32 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP3 | |-----------------------------+------------------------------| | 256KB | Open | |-----------------------------+------------------------------| | 512KB | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (CYRIX) | |------------------------------------------------------------| |CPU speed |Clock |Multiplier| JP4 |JP9 | JP11 | JP26 | | |speed | | | | | | |----------+------+----------+------+----+------+------------| | 120MHz |50MHz | 2x |Closed|Open|Closed|1 & 2, 3 & 4| |----------+------+----------+------+----+------+------------| | 133MHz |66MHz | 2x |Closed|Open|Closed| Open | |----------+------+----------+------+----+------+------------| | 150MHz |60MHz | 2x |Closed|Open|Closed| 1 & 2 | |----------+------+----------+------+----+------+------------| | 166MHz |66MHz | 2x |Closed|Open|Closed| 3 & 4 | |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (IBM) | |------------------------------------------------------------| |CPU speed|Clock speed|Multiplier| JP4 | JP9 | JP11 |JP26 | |---------+-----------+----------+-------+-----+-------+-----| | 133MHz | 55MHz | 2x |Closed |Open |Closed |Open | |---------+-----------+----------+-------+-----+-------+-----| | 150MHz | 60MHz | 2x |Closed |Open |Closed |1 & 2| |---------+-----------+----------+-------+-----+-------+-----| | 166MHz | 66MHz | 2x |Closed |Open |Closed |3 & 4| |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (AMD) | |------------------------------------------------------------| | CPU | Clock | Multiplier | JP4 | JP9 | JP11 | JP26 | | speed | speed | | | | | | |---------+--------+------------+------+------+------+-------| | 90MHz | 60MHz | 1.5x | Open | Open | Open | 1 & 2 | |---------+--------+------------+------+------+------+-------| | 100MHz | 66MHz | 2x | Open | Open | Open | 3 & 4 | |---------+--------+------------+------+------+------+-------| | 133MHz | 66MHz | 2x | Open | Open | Open | 3 & 4 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (INTEL) | |------------------------------------------------------------| |CPU speed |Clock |Multiplier|JP4 | JP9 | JP11 | JP26 | | |speed | | | | | | |----------+------+----------+----+------+------+------------| | 75MHz |50MHz | 1.5x |Open| Open | Open |1 & 2, 3 & 4| |----------+------+----------+----+------+------+------------| | 90MHz |60MHz | 1.5x |Open| Open | Open | 1 & 2 | |----------+------+----------+----+------+------+------------| | 100MHz |66MHz | 1.5x |Open| Open | Open | 3 & 4 | |----------+------+----------+----+------+------+------------| | 120MHz |60MHz | 2x |Open| Open |Closed| 1 & 2 | |----------+------+----------+----+------+------+------------| | 133MHz |66MHz | 2x |Open| Open |Closed| 3 & 4 | |----------+------+----------+----+------+------+------------| | 150MHz |60MHz | 2.5x |Open|Closed|Closed| 1 & 2 | |----------+------+----------+----+------+------+------------| | 166MHz |66MHz | 2.5x |Open|Closed|Closed| 3 & 4 | |----------+------+----------+----+------+------+------------| | 200MHz |66MHz | 3x |Open|Closed| Open | 3 & 4 | |------------------------------------------------------------| |Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION | |------------------------------------------------------------| | Voltage | V core | JP16 | JP17 | |----------+---------+-------------------+-------------------| | 3.3v | 2.8v | Pins 1 & 2 closed | Pins 1 & 2 closed | |----------+---------+-------------------+-------------------| | 3.3v | 3.45v | Pins 3 & 4 closed | Pins 1 & 2 closed | |----------+---------+-------------------+-------------------| | 3.3v | 3.52v | Pins 5 & 6 closed | Pins 1 & 2 closed | |----------+---------+-------------------+-------------------| | 3.45v | 2.8v | Pins 1 & 2 closed | Pins 3 & 4 closed | |----------+---------+-------------------+-------------------| | 3.45v | 3.45v | Pins 3 & 4 closed | Pins 3 & 4 closed | |----------+---------+-------------------+-------------------| | 3.45v | 3.52v | Pins 5 & 6 closed | Pins 3 & 4 closed | |----------+---------+-------------------+-------------------| | 3.52v | 2.8v | Pins 1 & 2 closed | Pins 5 & 6 closed | |----------+---------+-------------------+-------------------| | 3.52v | 3.45v | Pins 3 & 4 closed | Pins 5 & 6 closed | |----------+---------+-------------------+-------------------| | 3.52v | 3.52v | Pins 5 & 6 closed | Pins 5 & 6 closed | +------------------------------------------------------------+