J-MARK COMPUTER CORPORATION =========================== J-656HXA Processor Pentium Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 384MB Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 280mm 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 | Reset switch | J5 | |-------------------+----------+------------------+----------| | Serial port 2 | CN2 | IDE interface | J6 | | | | LED | | |-------------------+----------+------------------+----------| | Floppy drive | CN3 | Power LED & | J7 | | interface | | keylock | | |-------------------+----------+------------------+----------| | Parallel port | CN4 | Turbo LED | J8 | |-------------------+----------+------------------+----------| | IDE interface 2 | CN5 | Green PC | JP16 | | | | connector | | |-------------------+----------+------------------+----------| | IDE interface 1 | CN6 | Chassis fan | JP36 | | | | power | | |-------------------+----------+------------------+----------| | PS/2 mouse | J2 | IR connector | JP37 | | interface | | | | |-------------------+----------+------------------+----------| | Speaker | J4 | 32-bit PCI slots | PC1 - | | | | | PC3 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |-------------------------------------+-------+--------------| |>> | CMOS memory normal operation | J12 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| | | CMOS memory clear | J12 | Pins 3 & 4 | | | | | closed | |---+---------------------------------+-------+--------------| | | Monitor type select color | JP2 | Closed | |---+---------------------------------+-------+--------------| | | Monitor type select monochrome | JP2 | Open | |---+---------------------------------+-------+--------------| | | PS/2 mouse IRQ12 enabled | JPS1 | Closed | |---+---------------------------------+-------+--------------| | | PS/2 mouse IRQ12 disabled | JPS1 | Open | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 12v | JP17 | Pins 1 & 2 | | | | | closed | |---+---------------------------------+-------+--------------| | | Flash BIOS voltage select 5v | JP17 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP26 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP30 | Unidentified | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 8MB | (2) 1M x 36 | None | None | |------------+---------------+---------------+---------------| | 16MB | (2) 2M x 36 | None | None | |------------+---------------+---------------+---------------| | 16MB | (2) 1M x 36 | (2) 1M x 36 | None | |------------+---------------+---------------+---------------| | 24MB | (2) 1M x 36 | (2) 2M x 36 | None | |------------+---------------+---------------+---------------| | 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 | |------------+---------------+---------------+---------------| | 24MB | (2) 2M x 36 | (2) 1M x 36 | None | |------------+---------------+---------------+---------------| | 32MB | (2) 4M x 36 | None | None | |------------+---------------+---------------+---------------| | 32MB | (2) 1M x 36 | (2) 1M x 36 | (2) 2M x 36 | |------------+---------------+---------------+---------------| | 32MB | (2) 2M x 36 | (2) 2M x 36 | None | |------------+---------------+---------------+---------------| | 40MB | (2) 1M x 36 | (2) 4M x 36 | None | |------------+---------------+---------------+---------------| | 48MB | (2) 1M x 36 | (2) 1M x 36 | (2) 4M x 36 | |------------+---------------+---------------+---------------| | 48MB | (2) 2M x 36 | (2) 4M x 36 | None | |------------+---------------+---------------+---------------| | 48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x 36 | |------------+---------------+---------------+---------------| | 64MB | (2) 8M x 36 | None | None | |------------+---------------+---------------+---------------| | 64MB | (2) 2M x 36 | (2) 2M x 36 | (2) 4M x 36 | |------------+---------------+---------------+---------------| | 64MB | (2) 4M x 36 | (2) 4M x 36 | None | |------------+---------------+---------------+---------------| | 72MB | (2) 1M x 36 | (2) 8M x 36 | None | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | |------------+---------------+---------------+---------------| | 72MB | (2) 4M x 36 | (2) 4M x 36 | (2) 1M x 36 | |------------+---------------+---------------+---------------| | 80MB | (2) 1M x 36 | (2) 1M x 36 | (2) 8M x 36 | |------------+---------------+---------------+---------------| | 80MB | (2) 2M x 36 | (2) 8M x 36 | None | |------------+---------------+---------------+---------------| | 80MB | (2) 4M x 36 | (2) 4M x 36 | (2) 2M x 36 | |------------+---------------+---------------+---------------| | 96MB | (2) 2M x 36 | (2) 2M x 36 | (2) 8M x 36 | |------------+---------------+---------------+---------------| | 96MB | (2) 4M x 36 | (2) 8M x 36 | None | |------------+---------------+---------------+---------------| | 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 | |------------+---------------+---------------+---------------| | 128MB | (2) 16M x 36 | None | None | |------------+---------------+---------------+---------------| | 128MB | (2) 4M x 36 | (2) 4M x 36 | (2) 8M x 36 | |------------+---------------+---------------+---------------| | 128MB | (2) 8M x 36 | (2) 8M x 36 | None | |------------+---------------+---------------+---------------| | 136MB | (2) 1M x 36 | (2) 16M x 36 | None | |------------+---------------+---------------+---------------| | 136MB | (2) 8M x 36 | (2) 8M x 36 | (2) 1M x 36 | |------------+---------------+---------------+---------------| | 144MB | (2) 1M x 36 | (2) 1M x 36 | (2) 16M x 36 | |------------+---------------+---------------+---------------| | 144MB | (2) 2M x 36 | (2) 16M x 36 | None | |------------+---------------+---------------+---------------| | 144MB | (2) 8M x 36 | (2) 8M x 36 | (2) 2M x 36 | |------------+---------------+---------------+---------------| | 160MB | (2) 2M x 36 | (2) 2M x 36 | (2) 16M x 36 | |------------+---------------+---------------+---------------| | 160MB | (2) 4M x 36 | (2) 16M x 36 | None | |------------+---------------+---------------+---------------| | 160MB | (2) 8M x 36 | (2) 8M x 36 | (2) 4M x 36 | |------------+---------------+---------------+---------------| | 192MB | (2) 4M x 36 | (2) 4M x 36 | (2) 16M x 36 | |------------+---------------+---------------+---------------| | 192MB | (2) 8M x 36 | (2) 16M x 36 | None | |------------+---------------+---------------+---------------| | 192MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 | |------------+---------------+---------------+---------------| | 256MB | (2) 8M x 36 | (2) 8M x 36 | (2) 16M x 36 | |------------+---------------+---------------+---------------| | 264MB | (2) 16M x 36 | (2) 16M x 36 | (2) 1M x 36 | |------------+---------------+---------------+---------------| | 272MB | (2) 16M x 36 | (2) 16M x 36 | (2) 2M x 36 | |------------+---------------+---------------+---------------| | 288MB | (2) 16M x 36 | (2) 16M x 36 | (2) 4M x 36 | |------------+---------------+---------------+---------------| | 320MB | (2) 16M x 36 | (2) 16M x 36 | (2) 8M x 36 | |------------+---------------+---------------+---------------| | 384MB | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 | |------------------------------------------------------------| | 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) | (2) 64K x 32 | Not installed | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP19 | JP20 | JP35 | |-----------+----------------+---------------+---------------| | 256KB (A) | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | | | closed | closed | closed | |-----------+----------------+---------------+---------------| | 256KB (B) | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | | | closed | closed | closed | |-----------+----------------+---------------+---------------| | 512KB (A) | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | | | closed | closed | closed | |-----------+----------------+---------------+---------------| | 512KB (B) | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | CPU | Clock | Multiplier | JP22 | JP23 | JP41 | | speed | speed | | | | | |---------+--------+------------+--------+--------+----------| | 75MHz | 50MHz | 1.5x | Open | Open | 1 & 2, 3 | | | | | | | & 4 | |---------+--------+------------+--------+--------+----------| | 90MHz | 60MHz | 1.5x | Open | Open | 1 & 2 | |---------+--------+------------+--------+--------+----------| | 100MHz | 66MHz | 1.5x | Open | Open | 3 & 4 | |---------+--------+------------+--------+--------+----------| | 120MHz | 60MHz | 2x | Closed | Open | 1 & 2 | |---------+--------+------------+--------+--------+----------| | 133MHz | 66MHz | 2x | Closed | Open | 3 & 4 | |---------+--------+------------+--------+--------+----------| | 150MHz | 60MHz | 2.5x | Closed | Closed | 1 & 2 | |---------+--------+------------+--------+--------+----------| | 166MHz | 66MHz | 2.5x | Closed | Closed | 3 & 4 | |---------+--------+------------+--------+--------+----------| | 200MHz | 66MHz | 3x | Open | Closed | 3 & 4 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION | |------------------------------------------------------------| | Voltage | JP32 | JP33 | JP34 | |---------------+--------------+--------------+--------------| | 3.3v | Closed | Open | Open | |---------------+--------------+--------------+--------------| | 3.45v | Open | Closed | Open | |---------------+--------------+--------------+--------------| | 3.52v | Open | Open | Closed | +------------------------------------------------------------+