
IBM CORPORATION

APTIVA 2153 SL-A

Device Type                Mainboard
Processor                  AM K6-2/AM K6S
Processor Speed            300/350MHz
Chip Set                   Unidentified
Video Chip Set             ATI
Maximum Onboard Memory     256MB (SDRAM supported)
Maximum Video Memory       4MB
Cache                      512KB
BIOS                       Unidentified
Dimensions                 254mm x 218mm
I/O Options                32-bit PCI slot, floppy drive interface,
                           game/MIDI port, IDE interfaces (2), parallel
                           port, PS/2 mouse port, serial ports (2), VGA
                           port, IR connector, USB connectors (2), ATX
                           power connector, line in, line out, microphone
                           in, audio in  CD-ROM

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Serial port 1            CN8
  connector

  USB connector 1          CN1         Wake on modem            CN9
                                       connector

  USB connector 2          CN1A        IDE interface 2          CN10

  Power LED            CN2/pins 1     IDE interface 1          CN11
                            3

  IDE interface LED    CN2/pins 4     Floppy drive             CN12
                            7          interface

  Reset switch         CN2/pins 8 &    Game/MIDI port           CN13
                            9

  Soft off power       CN2/pins 10 &   Line in                 CN13B
  supply                    20

  Turbo LED            CN2/pins 11    Line out                CN13C
                            13

  IR connector         CN2/pins 14 -   Microphone in           CN13A
                            19

  PS/2 mouse port          CN3         Modem connector          CN14

  AMC connector            CN5         Audio in  CD-ROM        CN15

  Parallel port            CN6         CPU fan power            FN1

  VGA port                 CN6A        32-bit PCI slot          PC1

  Serial port 2            CN6B

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           C1           Unidentified
      alter

     Factory configured - do not           C2           Unidentified
      alter

     Factory configured - do not           C3           Unidentified
      alter

     Factory configured - do not           C4           Unidentified
      alter

     Factory configured - do not           C5           Unidentified
      alter

     Factory configured - do not           FN2          Unidentified
      alter

     VGA IRQ disabled                      JP1        Pins 1 & 2 closed

      VGA IRQ enabled                       JP1        Pins 2 & 3 closed

     Hardware monitor disabled            SW1/1              Off

      Hardware monitor enabled             SW1/1              On

     Password disabled                    SW3/2              Off

      Password enabled                     SW3/2              On

               DIMM CONFIGURATION

      Size          Bank 0          Bank 1

      8MB         (1) 1M x 64        None

      16MB        (1) 2M x 64        None

      16MB        (1) 1M x 64     (1) 1M x 64

      24MB        (1) 2M x 64     (1) 1M x 64

      32MB        (1) 4M x 64        None

      32MB        (1) 2M x 64     (1) 2M x 64

      40MB        (1) 4M x 64     (1) 1M x 64

      48MB        (1) 4M x 64     (1) 2M x 64

      64MB        (1) 8M x 64        None

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

      72MB        (1) 8M x 64     (1) 1M x 64

      80MB        (1) 8M x 64     (1) 2M x 64

      96MB        (1) 8M x 64     (1) 4M x 64

     128MB       (1) 16M x 64        None

     128MB        (1) 8M x 64     (1) 8M x 64

     136MB       (1) 16M x 64     (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64

     256MB       (1) 16M x 64    (1) 16M x 64

            Note: Board accepts SDRAM memory.

                            CACHE CONFIGURATION

  Note: 512KB cache is factory installed and is not configurable. The
  location is unidentified.

                        VIDEO MEMORY CONFIGURATION

  Note: 2/4MB video memory is factory installed and is not configurable.
  The location is unidentified.

                       CPU SPEED SELECTION (AM K6-2)

    CPU     Clock    Multiplier    JPX1   SW1/2    SW1/3   SW1/4   SW2/1
  speed     speed

  266MHz    66MHz        4x        2 &     Off      On     Off       On
                                    3

  300MHz    66MHz       4.5x       2 &     Off      On     Off       On
                                    3

  300MHz    100MHz       3x        2 &     On      Off     Off      Off
                                    3

  350MHz    100MHz      3.5x       2 &     On      Off     Off      Off
                                    3

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K6-2, CONT)

    CPU     Clock    Multiplier   SW2/2    SW2/3   SW3/1   SW3/3   SW3/4
  speed     speed

  266MHz    66MHz        4x        Off      On      On      Off     Off

  300MHz    66MHz       4.5x       On       On      On      Off     Off

  300MHz    100MHz       3x        On      Off      On      On       On

  350MHz    100MHz      3.5x       Off     Off      On      On       On

                       CPU SPEED SELECTION (AM K6-S)

    CPU     Clock    Multiplier    JPX1   SW1/2    SW1/3   SW1/4   SW2/1
  speed     speed

  300MHz    66MHz       4.5x       1 &     Off      On     Off       On
                                    2

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K6-S, CONT)

    CPU     Clock    Multiplier   SW2/2    SW2/3   SW3/1   SW3/3   SW3/4
  speed     speed

  300MHz    66MHz       4.5x       On      Off      On      Off     Off

                     CPU VOLTAGE SELECTION

  Voltage    SW2/4      SW2/5     SW2/6      SW2/7     SW2/8

   2.2v       Off        Off       Off         On       Off

   2.3v       Off        Off       Off         On        On

   2.8v       Off        On        Off        Off       Off

   2.9v       Off        On        Off        Off        On

   3.2v       Off        On         On        Off       Off

   3.3v       Off        On         On        Off        On

