
AMERICAN MEGATRENDS, INC.

APOLLO IV

Device Type          Mainboard
Processor            AM K5/AM K6/Pentium
Processor Speed      90/100/120/133/150/166/200/233MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      256MB (EDO supported)
Memory
Maximum Video Memory None
Cache                512KB
BIOS                 AMI
Dimensions           254mm 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), IR connector, USB
                     connectors (2)
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Power LED & keylock         C1       Serial port 1              CN4

  Turbo LED                   C2       IDE interface 2            CN5

  Green PC connector          C3       IDE interface 1            CN6

  Green PC LED                C4       CPU fan power              CPU

  Speaker                     C5       Chassis fan power          FAN

  IDE interface LED           C6       IR connector               IR1

  Remote power switch         C7       32-bit PCI slots         PC1  PC4

  Reset switch                C8       PS/2 mouse interface       PS2

  Parallel port              CN1       Soft off power supply      RPW

  Floppy drive interface     CN2       USB connector 1            USB1

  Serial port 2              CN3       USB connector 2            USB2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            CPW              Open

      CMOS memory clear                       CPW             Closed

     Power supply type select AT             PWR1          Pins 1 & 2
                                                              closed

      Power supply type select remote         PWR1          Pins 2 & 3
      power                                                   closed

              SIMM 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

     128MB        (2) 16M x 36       None

     136MB        (2) 16M x 36   (2) 1M x 36

     144MB        (2) 16M x 36   (2) 2M x 36

     160MB        (2) 16M x 36   (2) 4M x 36

     192MB        (2) 16M x 36   (2) 8M x 36

     256MB        (2) 16M x 36   (2) 16M x 36

  Note: Board accepts EDO memory.

              DIMM CONFIGURATION

      Size          Bank 2          Bank 3

      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

              CACHE CONFIGURATION

         Size                   Bank 0

         512KB               (2) 64K x 32

  Note: The size of the TAG is unidentified.

                   CPU SPEED SELECTION (AM K5, IMI 652)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  90MHz    60MHz      1.5x       2 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 3      2      3

  100MHz   66MHz      1.5x       1 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      2      3

  120MHz   60MHz      1.5x       2 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 3      2      3

  133MHz   66MHz      1.5x       2 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 3      2      3

  150MHz   60MHz     1.75x       2 &    1 &    2 &   2 & 3   2 & 3   1 & 2
                                 3      2      3

  166MHz   66MHz     1.75x       1 &    1 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      2      3

  200MHz   66MHz       2x        1 &    1 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      2      3

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K5, OCS 9147)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  90MHz    60MHz      1.5x       2 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 3      3      3

  100MHz   66MHz      1.5x       1 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      3      3

  120MHz   60MHz      1.5x       2 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 3      3      3

  133MHz   66MHz      1.5x       1 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      3      3

  150MHz   60MHz     1.75x       2 &    2 &    2 &   2 & 3   2 & 3   1 & 2
                                 3      3      3

  166MHz   66MHz     1.75x       1 &    2 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      3      3

  200MHz   66MHz       2x        1 &    2 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      3      3

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K6, IMI 652)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  166MHz   66MHz      2.5x       1 &    1 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      2      3

  200MHz   66MHz       3x        1 &    1 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      2      3

  233MHz   66MHz      3.5x       1 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      2      3

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K6, OCS 9147)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  166MHz   66MHz      2.5x       1 &    2 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      3      3

  200MHz   66MHz       3x        1 &    2 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      3      3

  233MHz   66MHz      3.5x       1 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      3      3

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (INTEL, IMI 652)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  90MHz    60MHz      1.5x       1 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      2      3

  100MHz   66MHz      1.5x       1 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      2      3

  120MHz   60MHz       2x        2 &    1 &    2 &   2 & 3   1 & 2   1 & 2
                                 3      2      3

  133MHz   66MHz       2x        1 &    1 &    2 &   2 & 3   1 & 2   1 & 2
                                 2      2      3

  150MHz   60MHz      2.5x       2 &    1 &    2 &   2 & 3   2 & 3   1 & 2
                                 3      2      3

  166MHz   66MHz      2.5x       1 &    1 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      2      3

  200MHz   66MHz       3x        1 &    1 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      2      3

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (INTEL, OCS 9147)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  90MHz    60MHz      1.5x       2 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 3      3      3

  100MHz   66MHz      1.5x       1 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      3      3

  120MHz   60MHz       2x        2 &    2 &    2 &   2 & 3   1 & 2   1 & 2
                                 3      3      3

  133MHz   66MHz       2x        1 &    2 &    2 &   2 & 3   1 & 2   1 & 2
                                 2      3      3

  150MHz   60MHz      2.5x       2 &    2 &    2 &   2 & 3   2 & 3   1 & 2
                                 3      3      3

  166MHz   66MHz      2.5x       1 &    2 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      3      3

  200MHz   66MHz       3x        1 &    2 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      3      3

  Note: Pins designated should be in the closed position.

                 CPU SPEED SELECTION (INTEL MMX, IMI 652)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  166MHz   66MHz      2.5x       1 &    1 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      2      3

  200MHz   66MHz       3x        1 &    1 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      2      3

  233MHz   66MHz      3.5x       1 &    1 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      2      3

  Note: Pins designated should be in the closed position.

                 CPU SPEED SELECTION (INTEL MMX, OCS 9147)

   CPU     Clock   Multiplier   CLK1   CLK2   CLK3   FREQ1   FREQ2   FREQ3
  speed    speed

  166MHz   66MHz      2.5x       1 &    2 &    2 &   2 & 3   2 & 3   1 & 2
                                 2      3      3

  200MHz   66MHz       3x        1 &    2 &    2 &   1 & 2   2 & 3   1 & 2
                                 2      3      3

  233MHz   66MHz      3.5x       1 &    2 &    2 &   1 & 2   1 & 2   1 & 2
                                 2      3      3

  Note: Pins designated should be in the closed position.

      CPU VOLTAGE SELECTION (SINGLE)

       Voltage               VR1

        3.3v          Pins 3 & 4 closed

        3.5v          Pins 1 & 2 closed

                  CPU VOLTAGE SELECTION (DUAL)

       Voltage               V core                  VR1

         3.3v                 2.8v           Pins 9 & 10 closed

         3.3v                 2.9v            Pins 7 & 8 closed

         3.3v                 3.2v            Pins 5 & 6 closed

                     FLASH BIOS SELECTION

        Type                 EP1                  EP2

     AMD 28F020        Pins 1 & 2 closed   Pins 2 & 3 closed

   ATMEL AT29C020            Open          Pins 2 & 3 closed

    Intel 28F001       Pins 2 & 3 closed   Pins 1 & 2 closed

    MXIC MX28F200      Pins 2 & 3 closed   Pins 2 & 3 closed

     SST 29EE010             Open          Pins 2 & 3 closed

     SST 29EE020             Open          Pins 2 & 3 closed

