J-MARK COMPUTER CORPORATION =========================== J-656VXB Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 270mm 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), cache slot, IR connector NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | Serial port 1 | CN1 | IDE interface | JC5 | | | | LED | | |-------------------+----------+------------------+----------| | Serial port 2 | CN2 | Power LED & | JC6 | | | | keylock | | |-------------------+----------+------------------+----------| | Parallel port | CN3 | Turbo switch | JC7 | |-------------------+----------+------------------+----------| | Floppy drive | CN4 | Green PC | JC8 | | interface | | connector | | |-------------------+----------+------------------+----------| | IDE interface 2 | CN5 | IR connector | JP12 | |-------------------+----------+------------------+----------| | IDE interface 1 | CN6 | Chassis fan | JP21 | | | | power | | |-------------------+----------+------------------+----------| | PS/2 mouse | J1 | External battery | JP23 | | interface | | | | |-------------------+----------+------------------+----------| | Speaker | JC2 | 32-bit PCI slots | PC1 - | | | | | PC3 | |-------------------+----------+------------------+----------| | Reset switch | JC3 | Cache slot | SL1 | |-------------------+----------+------------------+----------| | Turbo LED | JC4 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |-------------------------------------+-------+--------------| |>> | Factory configured - do not | J4 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP3 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| | | PCICLK select PCICLK/4 | JP22 | Closed | |---+---------------------------------+-------+--------------| | | PCICLK select PCICLK/3 | JP22 | Open | |---+---------------------------------+-------+--------------| | | PS/2 IRQ12 enabled | JP29 | Closed | |---+---------------------------------+-------+--------------| | | PS/2 IRQ12 disabled | JP29 | Open | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 12v | JP33 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 5v | JP33 | Pins 2 & 3 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIMM/DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 8MB | (2) 1M x 36 | None | None | |------------+---------------+---------------+---------------| | 8MB | None | None | (1) 1M x 64 | |------------+---------------+---------------+---------------| | 16MB | (2) 2M x 36 | None | None | |------------+---------------+---------------+---------------| | 16MB | (2) 1M x 36 | (2) 1M x 36 | None | |------------+---------------+---------------+---------------| | 16MB | None | None | (1) 2M x 64 | |------------+---------------+---------------+---------------| | 24MB | (2) 2M x 36 | (2) 1M x 36 | None | |------------+---------------+---------------+---------------| | 32MB | (2) 4M x 36 | None | None | |------------+---------------+---------------+---------------| | 32MB | (2) 2M x 36 | (2) 2M x 36 | None | |------------+---------------+---------------+---------------| | 32MB | None | None | (1) 4M x 64 | |------------+---------------+---------------+---------------| | 40MB | (2) 4M x 36 | (2) 1M x 36 | None | |------------+---------------+---------------+---------------| | 48MB | (2) 4M x 36 | (2) 2M x 36 | None | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIMM/DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |-------------+---------------+---------------+--------------| | 64MB | (2) 8M x 36 | None | None | |-------------+---------------+---------------+--------------| | 64MB | (2) 4M x 36 | (2) 4M x 36 | None | |-------------+---------------+---------------+--------------| | 72MB | (2) 8M x 36 | (2) 1M x 36 | None | |-------------+---------------+---------------+--------------| | 80MB | (2) 8M x 36 | (2) 2M x 36 | None | |-------------+---------------+---------------+--------------| | 96MB | (2) 8M x 36 | (2) 4M x 36 | None | |-------------+---------------+---------------+--------------| | 128MB | (2) 8M x 36 | (2) 8M x 36 | None | |------------------------------------------------------------| | Note: Board accepts EDO memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | SL1 | TAG | |-----------+--------------+-------------------+-------------| | 256KB (A) | (2) 32K x 32 | Not installed | (1) 32K x 8 | |-----------+--------------+-------------------+-------------| | 256KB (B) | None | 256KB module | (1) 32K x 8 | | | | installed | | |-----------+--------------+-------------------+-------------| | 512KB (A) | (2) 32K x 32 | 256KB module | (1) 32K x 8 | | | | installed | | |-----------+--------------+-------------------+-------------| | 512KB (B) | None | 512KB module | (1) 32K x 8 | | | | installed | | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP1 | JP2 | JP7 | JP8 | |---------------------------+--------+-------+-------+-------| | 256KB (A) | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | |---------------------------+--------+-------+-------+-------| | 256KB (B) | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | |---------------------------+--------+-------+-------+-------| | 512KB (A, Jet-Way module) | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | |---------------------------+--------+-------+-------+-------| | 512KB (A, Intel module) | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | |---------------------------+--------+-------+-------+-------| | 512KB (B, Jet-Way module) | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | |---------------------------+--------+-------+-------+-------| | 512KB (B, Intel module) | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (CYRIX) | |------------------------------------------------------------| | CPU | Clock | Multiplier | J5 | JP13 | JP14 | | speed | speed | | | | | |----------+---------+------------+----------+--------+------| | 120MHz | 50MHz | 2x | 3 & 4, 5 | Closed | Open | | | | | & 6 | | | |----------+---------+------------+----------+--------+------| | 133MHz | 55MHz | 2x | 3 & 4 | Closed | Open | |----------+---------+------------+----------+--------+------| | 150MHz | 60MHz | 2x | 5 & 6 | Closed | Open | |----------+---------+------------+----------+--------+------| | 166MHz | 66MHz | 2x | Open | Closed | Open | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (AMD) | |------------------------------------------------------------| | CPU speed | Clock speed | Multiplier | J5 | JP13 | JP14 | |-----------+-------------+------------+-------+------+------| | 90MHz | 60MHz | 1.5x | 5 & 6 | Open | Open | |-----------+-------------+------------+-------+------+------| | 100MHz | 66MHz | 1.5x | Open | Open | Open | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION (INTEL) | |------------------------------------------------------------| | CPU | Clock | Multiplier | J5 | JP13 | JP14 | | speed | speed | | | | | |---------+--------+------------+----------+--------+--------| | 75MHz | 50MHz | 1.5x | 3 & 4, 5 | Open | Open | | | | | & 6 | | | |---------+--------+------------+----------+--------+--------| | 90MHz | 60MHz | 1.5x | 5 & 6 | Open | Open | |---------+--------+------------+----------+--------+--------| | 100MHz | 66MHz | 1.5x | Open | Open | Open | |---------+--------+------------+----------+--------+--------| | 120MHz | 60MHz | 2x | 5 & 6 | Closed | Open | |---------+--------+------------+----------+--------+--------| | 133MHz | 66MHz | 2x | Open | Closed | Open | |---------+--------+------------+----------+--------+--------| | 150MHz | 60MHz | 2.5x | 5 & 6 | Closed | Closed | |---------+--------+------------+----------+--------+--------| | 166MHz | 66MHz | 2.5x | Open | Closed | Closed | |---------+--------+------------+----------+--------+--------| | 200MHz | 66MHz | 3x | Open | Open | Closed | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION (SINGLE) | |------------------------------------------------------------| | Voltage | JP24 | JP25 | JP26 | |---------------+--------------+--------------+--------------| | 3.3v | Closed | Open | Open | |---------------+--------------+--------------+--------------| | 3.45v | Open | Closed | Open | |---------------+--------------+--------------+--------------| | 3.52v | Open | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION (DUAL) | |------------------------------------------------------------| |Voltage |V core | J11 | J12 | J13 | JP24 | JP25 | JP26 | |--------+-------+-------+-------+------+------+------+------| | 3.3v | 2.5v |Closed | Open | Open |Closed| Open | Open | |--------+-------+-------+-------+------+------+------+------| | 3.3v | 2.8v | Open |Closed | Open | Open |Closed| Open | |--------+-------+-------+-------+------+------+------+------| | 3.3v | 3.45v | Open | Open |Closed| Open | Open |Closed| |--------+-------+-------+-------+------+------+------+------| | 3.45v | 2.5v |Closed | Open | Open |Closed| Open | Open | |--------+-------+-------+-------+------+------+------+------| | 3.45v | 2.8v | Open |Closed | Open | Open |Closed| Open | |--------+-------+-------+-------+------+------+------+------| | 3.45v | 3.45v | Open | Open |Closed| Open | Open |Closed| |--------+-------+-------+-------+------+------+------+------| | 3.52v | 2.5v |Closed | Open | Open |Closed| Open | Open | |--------+-------+-------+-------+------+------+------+------| | 3.52v | 2.8v | Open |Closed | Open | Open |Closed| Open | |--------+-------+-------+-------+------+------+------+------| | 3.52v | 3.45v | Open | Open |Closed| Open | Open |Closed| +------------------------------------------------------------+ MOS +------------------------------------------------------------+ | CMOS SELECTION | |------------------------------------------------------------| | Setting | JP23 | JP35 | |-------------------------------+-------------------+--------| |>> | CMOS memory normal | Pins 2 & 3 closed | Open | | | operation | | | |---+---------------------------+-------------------+--------| | | CMOS memory clear | Pins 3 & 4 closed | Closed | +------------------------------------------------------------+