BCM ADVANCED RESEARCH, INC.

SQ588

Processor                  Pentium
Processor Speed            75/90/100MHz
Chip Set                   SIS
Video Chip Set             None
Maximum Onboard Memory     128MB (EDO supported)
Maximum Video Memory       None
Cache                      256/512/1024KB
BIOS                       AMI/Phoenix
Dimensions                 330mm x 218mm
I/O Options                32-bit PCI slots (4), floppy drive interface,
                           green PC connector, IDE interfaces (2), parallel
                           port, PS/2 mouse interface, serial ports (2)
NPU Options                None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  PS/2 mouse interface        J1       Standby connector          J18

  Green PC connector          J5       Turbo LED                  J20

  Serial port 2               J6       IDE interface LED          J21

  Floppy drive interface      J7       Power LED & keylock        J22

  IDE interface 1             J8       Reset switch               J23

  Serial port 1               J9       Speaker                    J24

  Parallel port              J10       32-bit PCI slots         PC1 – PC4

  IDE interface 2            J11

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Flash BIOS normal operation           J12              Open

      Flash BIOS programming mode           J12             Closed

  »   CMOS memory normal operation          J27              Open

      CMOS memory clear                     J27             Closed

  »   Factory configured - do not           J28              Open
      alter

  »   Factory configured - do not           J30              Open
      alter

  »   Factory configured - do not           JP1          Unidentified
      alter

      IDE interface enabled                JP11              Open

      IDE interface disabled               JP11             Closed

                        SIMM 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

         8MB               (2) 1M x 36               None

         8MB              (2) 512K x 36          (2) 512K x 36

         16MB              (2) 2M x 36               None

         16MB              (2) 1M x 36            (2) 1M x 36

         20MB             (2) 512K x 36           (2) 2M x 36

         32MB              (2) 4M x 36               None

         32MB              (2) 2M x 36            (2) 2M x 36

         36MB             (2) 512K x 36           (2) 4M x 36

         40MB              (2) 1M x 36            (2) 4M x 36

         48MB              (2) 4M x 36            (2) 2M x 36

         64MB              (2) 4M x 36            (2) 4M x 36

         64MB              (2) 8M x 36               None

         80MB              (2) 2M x 36            (2) 8M x 36

        128MB              (2) 8M x 36            (2) 8M x 36

  Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

        SIMM JUMPER CONFIGURATION

        Size                 J26

    Single sided      Pins 1 & 2 closed

    Double sided      Pins 2 & 3 closed

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     256KB        (8) 32K x 8    (1) 32K x 8

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

      1MB         (8) 128K x 8   (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 J16                  J17

        256KB          Pins 1 & 2 closed   Pins 1 & 2 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

         1MB           Pins 2 & 3 closed   Pins 2 & 3 closed

                            CPU SPEED SELECTION

    CPU      Clock     Multiplier      J13       J14       J15       J31
  speed      speed

  75MHz      50MHz        1.5x        Open      Open      Closed    1 & 2

  90MHz      60MHz        1.5x       Closed     Open       Open     1 & 2

  100MHz     66MHz        1.5x        Open     Closed      Open     2 & 3

  Note: Pins designated should be in the closed position.