
IBM CORPORATION

APTIVA 2144

Processor       80486SX/80486SX2/80487SX/80486DX/80486DX2/P24T
Processor Speed 25/33/50(internal)/66(internal)MHz
Chip Set        Unidentified
Video Chip Set  Unidentified
Maximum Onboard 64MB
Memory
Maximum Video   Unidentified
Memory
Cache           128/256KB
BIOS            Unidentified
Dimensions      254mm x 218mm
I/O Options     Floppy drive interface, IDE interface, 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

  VGA port                   CN1       Floppy drive interface      CN8

  Parallel port              CN2       IDE interface LED           J26

  Serial port                CN3       Speaker                     J27

  Serial port                CN4       Auxiliary power             J29
                                       connector

  PS/2 mouse port            CN5       Auxiliary power             J30
                                       connector

  VESA feature connector     CN6       Chassis fan power           J38

  IDE interface              CN7       Riser slot                  SL1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      On board video enabled                  J15           Pins 1 & 2
                                                              closed

      On board video disabled                 J15           Pins 2 & 3
                                                              closed

      Parity enabled                          J50           Pins 1 & 2
                                                              closed

      Parity disabled                         J50           Pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (1) 256K x        None           None           None
                    36

     2MB        (1) 512K x        None           None           None
                    36

     4MB       (1) 1M x 36        None           None           None

     4MB        (1) 512K x     (1) 512K x        None           None
                    36             36

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     5MB       (1) 1M x 36     (1) 256K x        None           None
                                   36

     6MB       (1) 1M x 36     (1) 256K x     (1) 256K x        None
                                   36             36

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     8MB       (1) 2M x 36        None           None           None

     8MB       (1) 1M x 36    (1) 1M x 36        None           None

     10MB      (1) 2M x 36     (1) 256K x     (1) 256K x        None
                                   36             36

     12MB      (1) 2M x 36    (1) 1M x 36        None           None

     12MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        None

     14MB      (1) 2M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     16MB      (1) 4M x 36        None           None           None

     16MB      (1) 2M x 36    (1) 2M x 36        None           None

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

     17MB      (1) 4M x 36     (1) 256K x        None           None
                                   36

     18MB      (1) 4M x 36     (1) 256K x     (1) 256K x        None
                                   36             36

     20MB      (1) 4M x 36    (1) 1M x 36        None           None

     22MB      (1) 4M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     24MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36        None

     28MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     32MB      (1) 8M x 36        None           None           None

     32MB      (1) 4M x 36    (1) 4M x 36        None           None

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     32MB       (1) 2M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     34MB       (1) 8M x 36     (1) 512K x       None           None
                                   36

     36MB       (1) 8M x 36    (1) 1M x 36       None           None

     40MB       (1) 2M x 36    (1) 8M x 36       None           None

     44MB       (1) 8M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     48MB       (1) 8M x 36    (1) 2M x 36    (1) 2M x 36       None

     64MB       (1) 8M x 36    (1) 8M x 36       None           None

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     128KB      (4) 32K x 8        None       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                 CACHE JUMPER CONFIGURATION

   Size       J12       J13       J16       J17       J51

  128KB      2 & 3     1 & 2     2 & 3     1 & 2     1 & 2

  256KB      1 & 2     2 & 3     1 & 2     2 & 3     2 & 3

  Note: Pins designated should be in the closed position.

                 VIDEO MEMORY CONFIGURATION

  Note: The size of the video memory chip is unidentified.

  CPU SPEED SELECTION

   Speed        J37

   25MHz       Closed

   33MHz        Open

   50iMHz      Closed

   66iMHz       Open

                            CPU TYPE SELECTION

    Processor        Processor        J24           J25           J31
    installed        upgrade

     80486SX         80486SX2      Pins 1 & 2    Pins 2 & 3    Pins 1 & 2
                                     closed       closed        closed

     80486SX         80487SX       Pins 2 & 3    Pins 2 & 3    Pins 1 & 2
                                     closed       closed        closed

     80486SX         80486DX       Pins 1 & 2    Pins 2 & 3    Pins 1 & 2
                                     closed       closed        closed

     80486SX         80486DX2      Pins 1 & 2    Pins 2 & 3    Pins 1 & 2
                                     closed       closed        closed

     80486SX           P24T        Pins 2 & 3    Pins 2 & 3    Pins 1 & 2
                                     closed       closed        closed

    80486SX2           P24T        Pins 2 & 3    Pins 1 & 2    Pins 2 & 3
                                     closed       closed        closed

     80486DX         80486SX2      Pins 2 & 3    Pins 1 & 2    Pins 2 & 3
                                     closed       closed        closed

     80486DX         80486DX2      Pins 1 & 2    Pins 1 & 2    Pins 2 & 3
                                     closed       closed        closed

     80486DX           P24T        Pins 1 & 2    Pins 1 & 2    Pins 2 & 3
                                     closed       closed        closed

    80486DX2           P24T        Pins 2 & 3    Pins 1 & 2    Pins 2 & 3
                                     closed       closed        closed

