
J-MARK COMPUTER CORPORATION

J-597A

Device Type      Mainboard
Processor        CX 6X86/IBM 6X86/CX 686MX/IDT C6/AM K5/AM
                 K6/Pentium/Pentium MMX
Processor Speed  90/100/120/133/150/166/180/200/233/266/300MHz
Chip Set         VIA VP3
Maximum Onboard  384MB (EDO & SDRAM supported)
Memory
Cache            512/1024KB
BIOS             Unidentified
Dimensions       220mm x 170mm
I/O Options      32-bit PCI slots (4), floppy drive interface, IDE
                 interfaces (2), parallel port, PS/2 mouse interface,
                 serial ports (2), IR connector, USB connector, ATX power
                 connector, AGP slot

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  AGP slot                   AGP       PS/2 mouse interface       CN2

  ATX power connector        ATX       Serial port 2              CN4

  Turbo LED                   C1       Serial port 1              CN5

  Reset switch                C2       IDE interface 2            CN6

  Speaker                     C3       IDE interface 1            CN7

  Turbo switch                C4       Floppy drive               CN8
                                       interface

  Power LED & keylock         C5       Parallel port              CN9

  IDE interface LED           C6       IR connector               IR1

  Soft off power supply       C7       32-bit PCI slots         PC1  PC4

  CPU fan power               C8       USB connector              USB

  CPU fan power               C9

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     CMOS memory normal operation          J3         Pins 2 & 3 closed

      CMOS memory clear                     J3         Pins 3 & 4 closed

      Flash BIOS voltage select 12v         JP1        Pins 1 & 2 closed

      Flash BIOS voltage select 5v          JP1        Pins 2 & 3 closed

     Factory configured - do not           JP2          Unidentified
      alter

              SIMM CONFIGURATION

         Size                  Bank 0

          8MB                (2) 1M x 36

         16MB                (2) 2M x 36

         32MB                (2) 4M x 36

         64MB                (2) 8M x 36

         128MB              (2) 16M x 36

            Note: Board accepts EDO memory.

                    DIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (1) 1M x 64        None          None

     16MB       (1) 2M x 64        None          None

     16MB       (1) 1M x 64    (1) 1M x 64       None

     24MB       (1) 2M x 64    (1) 1M x 64       None

                  DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

      24MB        (1) 1M x 64     (1) 1M x 64    (1) 1M x 64

      32MB        (1) 4M x 64        None            None

      32MB        (1) 2M x 64     (1) 1M x 64    (1) 1M x 64

      32MB        (1) 2M x 64     (1) 2M x 64        None

      40MB        (1) 4M x 64     (1) 1M x 64        None

      40MB        (1) 2M x 64     (1) 2M x 64    (1) 1M x 64

      48MB        (1) 4M x 64     (1) 1M x 64    (1) 1M x 64

      64MB        (1) 8M x 64        None            None

      64MB        (1) 4M x 64     (1) 2M x 64    (1) 2M x 64

      64MB        (1) 4M x 64     (1) 4M x 64        None

      72MB        (1) 8M x 64     (1) 1M x 64        None

      80MB        (1) 4M x 64     (1) 4M x 64    (1) 2M x 64

      88MB        (1) 8M x 64     (1) 2M x 64    (1) 1M x 64

      96MB        (1) 8M x 64     (1) 2M x 64    (1) 2M x 64

      96MB        (1) 4M x 64     (1) 4M x 64    (1) 4M x 64

     104MB        (1) 8M x 64     (1) 4M x 64    (1) 1M x 64

     128MB       (1) 16M x 64        None            None

     128MB        (1) 8M x 64     (1) 4M x 64    (1) 4M x 64

     128MB        (1) 8M x 64     (1) 8M x 64        None

     136MB       (1) 16M x 64     (1) 1M x 64        None

     136MB        (1) 8M x 64     (1) 8M x 64    (1) 1M x 64

     144MB       (1) 16M x 64     (1) 1M x 64    (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64        None

     144MB        (1) 8M x 64     (1) 8M x 64    (1) 2M x 64

     152MB       (1) 16M x 64     (1) 2M x 64    (1) 1M x 64

     160MB       (1) 16M x 64     (1) 2M x 64    (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64        None

     160MB        (1) 8M x 64     (1) 8M x 64    (1) 4M x 64

     168MB       (1) 16M x 64     (1) 4M x 64    (1) 1M x 64

     192MB       (1) 16M x 64     (1) 4M x 64    (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64        None

     192MB        (1) 8M x 64     (1) 8M x 64    (1) 8M x 64

     224MB       (1) 16M x 64     (1) 8M x 64    (1) 4M x 64

     256MB       (1) 16M x 64     (1) 8M x 64    (1) 8M x 64

     384MB       (1) 16M x 64    (1) 16M x 64    (1) 16M x 64

            Note: Board accepts SDRAM memory.

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     512KB        (2) 32K x 64   (1) 32K x 8

      1MB         (2) 64K x 64   (1) 32K x 8

                       CPU SPEED SELECTION (CX 6X86)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  150MHz   60MHz        2x        On    Off     Off    On     Off    Off

  166MHz   66MHz        2x        On    Off     Off    Off    Off    Off

  200MHz   75MHz        2x        On    Off     Off    Off    On     Off

                      CPU SPEED SELECTION (IBM 6X86)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  150MHz   60MHz        2x        On    Off     Off    On     Off    Off

  166MHz   66MHz        2x        On    Off     Off    Off    Off    Off

  200MHz   75MHz        2x        On    Off     Off    Off    On     Off

                      CPU SPEED SELECTION (CX 6X86MX)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  166MHz   60MHz       2.5x       On     On     Off    On     Off    Off

  200MHz   66MHz       2.5x       On     On     Off    Off    Off    Off

  200MHz   75MHz        2x        On    Off     Off    Off    On     Off

  233MHz   66MHz        3x       Off     On     Off    Off    Off    Off

                       CPU SPEED SELECTION (IDT C6)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  150MHz   75MHz        2x        On    Off     Off    Off    On     Off

  180MHz   60MHz        3x       Off     On     Off    On     Off    Off

                        CPU SPEED SELECTION (AM K5)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  90MHz    60MHz       1.5x      Off    Off     Off    On     Off    Off

  100MHz   66MHz       1.5x      Off    Off     Off    Off    Off    Off

  133MHz   66MHz       1.5x      Off    Off     Off    Off    Off    Off

  166MHz   66MHz       2.5x       On     On     Off    Off    Off    Off

                        CPU SPEED SELECTION (AM K6)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  166MHz   66MHz       2.5x       On     On     Off    Off    Off    Off

  200MHz   66MHz        3x       Off     On     Off    Off    Off    Off

  233MHz   66MHz       3.5x      Off    Off     Off    Off    Off    Off

  266MHz   66MHz        4x        On    Off     On     Off    Off    Off

  300MHz   66MHz       4.5x       On     On     On     Off    Off    Off

                        CPU SPEED SELECTION (INTEL)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  90MHz    60MHz       1.5x      Off    Off     Off    On     Off    Off

  100MHz   66MHz       1.5x      Off    Off     Off    Off    Off    Off

  120MHz   60MHz        2x        On    Off     Off    On     Off    Off

  133MHz   66MHz        2x        On    Off     Off    Off    Off    Off

  150MHz   60MHz       2.5x       On     On     Off    On     Off    Off

  166MHz   66MHz       2.5x       On     On     Off    Off    Off    Off

  200MHz   66MHz        3x       Off     On     Off    Off    Off    Off

                      CPU SPEED SELECTION (INTEL MMX)

   CPU      Clock   Multiplier   U2/1   U2/2    U2/3   U2/4   U2/5   U2/6
  speed    speed

  166MHz   66MHz       2.5x       On     On     Off    Off    Off    Off

  200MHz   66MHz        3x       Off     On     Off    Off    Off    Off

  233MHz   66MHz       3.5x      Off    Off     Off    Off    Off    Off

                CPU VOLTAGE SELECTION

  Voltage     J4/1       J4/2      J4/3       J4/4

   Auto       Off        Off        Off        On

   2.1v        On        Off        Off        Off

   2.2v       Off         On        Off        Off

   2.8v       Off        Off        Off        On

   2.9v        On        Off        Off        On

   3.2v       Off        Off        On         On

   3.3v        On        Off        On         On

   3.45v      Off         On        On         On

   3.52v       On         On        On         On

