
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.

