IBM CORPORATION

APTIVA 2144 TYPE G-1

Processor                  Pentium
Processor Speed            75/90/100MHz
Chip Set                   Unidentified
Video Chip Set             Unidentified
Maximum Onboard Memory     128MB
Maximum Video Memory       2MB
Cache                      256/512KB
BIOS                       Unidentified
Dimensions                 254mm x 218mm
I/O Options                Floppy drive interface, IDE interfaces (2),
                           parallel port, PS/2 mouse port, serial ports
                           (2), VESA feature connector, VGA port, riser
                           slot
NPU Options                None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Front panel connector      J1D1      Serial port                J6K1

  VGA port                   J1K1      PS/2 mouse port            J7K1

  VESA feature connector     J1H1      IDE interface 2            J8F1

  Front panel connector      J2A2      Floppy drive interface     J9D1

  Parallel port              J3K1      IDE interface 1            J9F2

  Serial port                J5K1      Riser slot                  SL1

                        USER CONFIGURABLE SETTINGS

              Function                    Label            Position

  ?   Flash BIOS normal operation          J5J1        Pins 1 & 3 closed

      Flash BIOS clear                     J5J1        Pins 1 & 2 closed

  ?   Factory configured - do not          J8A1          Unidentified
      alter

  ?   Password enabled                   SW1E1/3              Off

      Password disabled                  SW1E1/3              On

  ?   CMOS memory normal operation       SW1E1/4              Off

      CMOS memory clear                  SW1E1/4              On

  ?   Factory configured - do not        SW1E1/5              Off
      alter

                            DRAM CONFIGURATION

          Size                    Bank 0                   Bank 1

           8MB                 (2) 1M x 36                  None

          16MB                 (2) 2M x 36                  None

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

          24MB                 (2) 2M x 36              (2) 1M x 36

          32MB                 (2) 4M x 36                  None

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

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

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

          64MB                 (2) 8M x 36                  None

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

          72MB                 (2) 8M x 36              (2) 1M x 36

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

          96MB                 (2) 8M x 36              (2) 4M x 36

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

  Note: Board accepts x 32 SIMMs. The location of banks 0 & 1 are
  unidentified.

            CACHE CONFIGURATION

     Size          Bank 0          TAG

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

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

   CACHE SWITCH CONFIGURATION

   Size      SW1E1/1   SW1E1/2

   None        On        N/A

   256KB      Off        Off

   512KB      Off        On

                  VIDEO MEMORY CONFIGURATION

        Size                Bank 0               Bank 1

         1MB            (2) 256K x 16             None

         2MB            (2) 256K x 16        (2) 256K x 16

  Note: Bank 0 is factory installed and is not configurable.

                            CPU SPEED SELECTION

    CPU        Clock     Multiplier     SW1E1/6     SW1E1/7      SW1E1/8
   speed      speed

   75MHz      50MHz         1.5x          Off         Off          Off

   90MHz      60MHz         1.5x          Off          On          Off

  100MHz      66MHz         1.5x          Off         Off          On

            CPU TYPE SELECTION

        Type                 J9C1

      Standard        Pins 1 & 3 closed

         VRE          Pins 5 & 7 closed

                          ISA BUS SPEED SELECTION

  CPU speed       ISA 1/6         ISA 1/8       J5J1 (ISA     J5J1 (ISA
                                                  1/6)          1/8)

    75MHz         8.33MHz         6.25MHz      Pins 5 & 7     Pins 5 & 7
                                                  open         closed

    90MHz          10MHz          7.5MHz       Pins 5 & 7     Pins 5 & 7
                                                  open         closed

    100MHz         11MHz          8.25MHz      Pins 5 & 7     Pins 5 & 7
                                                  open         closed