IBM CORPORATION

APTIVA 2139 SL-A

Device Type                Mainboard
Processor                  Pentium II
Processor Speed            350/400/450MHz
Chip Set                   Unidentified
Video Chip Set             ATI
Maximum Onboard Memory     384MB (EDO & SDRAM supported)
Maximum Video Memory       4MB
Cache                      512KB (located on Pentium II CPU)
BIOS                       Unidentified
Dimensions                 305mm x 244mm
I/O Options                32-bit PCI slots (3), floppy drive interface,
                           game/MIDI port, IDE interfaces (2), parallel
                           port, PS/2 mouse port, serial ports (2), VGA
                           port, USB connectors (2), ATX power connector,
                           line in, line out, microphone in, audio in –
                           CD-ROM

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       AMC connector              CN7

  USB connector 1            CN2       Modem connector            CN8

  USB connector 2            CN2A      Audio in – CD-ROM          CN9

  PS/2 mouse port            CN3       Wake on modem              CN10
                                       connector

  Parallel port              CN4       Floppy drive               CN11
                                       interface

  Serial port 1              CN4B      IDE interface 1            CN12

  VGA port                   CN4C      IDE interface 2            CN13

  Game/MIDI port             CN5       CS4610 connector           CN15

  Microphone in              CN5A      CPU fan power              FN1

  Line in                    CN5B      CPU fan power              FN2

  Line out                   CN5C      Power LED & keylock        JP4

  IDE interface LED          CN6       32-bit PCI slots         PC1 – PC3

  Note: The location of CN10 is unidentified.

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

      Audio resource write protected         J1        Pins 1 & 2 closed

      Audio resource programmable            J1        Pins 2 & 3 closed

      VGA IRQ disabled                      JP2        Pins 1 & 2 closed

      VGA IRQ enabled                       JP2        Pins 2 & 3 closed

  »   Factory configured - do not           JP3          Unidentified
      alter

  »   Factory configured - do not           JPX2         Unidentified
      alter

      Password enabled                      S1/2              Off

      Password disabled                     S1/2              On

  »   Factory configured - do not           S1/3         Unidentified
      alter

  »   Factory configured - do not           S1/4         Unidentified
      alter

  Note: The location of J1 is unidentified.

                    DIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

     16MB       (1) 2M x 64        None          None

     32MB       (1) 4M x 64        None          None

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

     48MB       (1) 4M x 64    (1) 2M x 64       None

                  DIMM CONFIGURATION (CON’T)

      Size          Bank 0          Bank 1          Bank 2

      48MB        (1) 2M x 64     (1) 2M x 64    (1) 2M 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

      80MB        (1) 8M x 64     (1) 2M x 64        None

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

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

      96MB        (1) 8M x 64     (1) 4M x 64        None

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

     112MB        (1) 8M x 64     (1) 4M x 64    (1) 2M 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

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

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

     176MB       (1) 16M x 64     (1) 4M x 64    (1) 2M 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

     208MB       (1) 16M x 64     (1) 8M x 64    (1) 2M 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

  Note: 512KB cache is located on the Pentium II CPU.

                        VIDEO MEMORY CONFIGURATION

  Note: 4MB video memory is factory installed and is not configurable.
  The location is unidentified.

                            CPU SPEED SELECTION

    CPU      Clock    Multiplier    S1/1   S1/5    SW1/6    S1/7    S1/8
  speed     speed

  350MHz    100MHz       3.5x       Off     On       On     Off      On

  400MHz    100MHz        4x        Off     Off      On      On      On

  450MHz    100MHz       4.5x       Off     Off      On     Off      On