AMERICAN MEGATRENDS, INC.

APOLLO

Processor                Pentium
Processor Speed          75/90/100/120/133MHz
Chip Set                 Intel
Video Chip Set           None
Maximum Onboard Memory   128MB (EDO supported)
Maximum Video Memory     None
Cache                    256/512KB
BIOS                     AMI
Dimensions               259mm x 216mm
I/O Options              32-bit PCI slots (4), floppy drive interface, IDE
                         interfaces (2), parallel port, PS/2 mouse
                         interface, serial ports (2)
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  PS/2 mouse interface       CN1       External battery            J6

  Serial port 2              CN2       Chassis fan power          J11

  Serial port 1              CN3       Reset switch               J12

  Parallel port              CN4       Speaker                    J13

  Floppy drive interface     CN5       Power LED & keylock        J14

  IDE interface 1            CN6       IDE interface LED          JP1

  IDE interface 2            CN7       32-bit PCI slots         PC1 - PC4

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

  »   Cache type select write back               J1            Open

      Cache type select write through            J1          Pins 1 & 2
                                                              closed

  »   Monitor type select                        J2            Open
      monochrome/EGA/VGA

      Monitor type select CGA                    J2           Closed

  »   Pipeline mode enabled                      J3           Closed

      Pipeline mode disabled                     J3            Open

  »   Flash BIOS voltage select 5v               J4          Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v              J4          Pins 1 & 2
                                                              closed

      CPU bus speed select PCLK/3                J5          Pins 1 & 2
                                                              closed

      CPU bus speed select PCLK/4                J5          Pins 2 & 3
                                                              closed

      PCI/CPU bus speed ratio select 1/2         J8           Closed

      PCI/CPU bus speed ratio select 3/2         J8            Open

  »   CMOS memory normal operation               JCP           Open

      CMOS memory clear                          JCP          Closed

                            DRAM CONFIGURATION

          Size                    Bank 0                  Bank 1

           8MB                 (2) 1M x 36                 None

          10MB                 (2) 1M x 36             (2) 256K x 36

          16MB                 (2) 2M x 36                 None

          18MB                 (2) 2M x 36             (2) 256K x 36

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

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

          34MB                 (2) 4M x 36             (2) 256K x 36

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

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

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

          64MB                 (2) 8M x 36                 None

          66MB                 (2) 8M x 36             (2) 256K 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 EDO memory. The location of the Banks 0 & 1 are
  unidentified. Board also accepts x 32 SIMMs.

                            CACHE CONFIGURATION

           Size                    Bank 0                    TAG

  256KB (A) mixed voltage        (8) 32K x 8             (1) 8K x 8

      256KB (B) 3.3v             (8) 32K x 8             (1) 8K x 8

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

                        CACHE JUMPER CONFIGURATION

   Size       J9      J10     JC1      JPW1      JPW2      JPW3     JPW4

   256KB     1 & 2   2 & 3   1 & 2     1 & 2    1 & 2     1 & 2    1 & 2
    (A)

   256KB     1 & 2   2 & 3   1 & 2     2 & 3    2 & 3     2 & 3    2 & 3
    (B)

   512KB     2 & 3   1 & 2   2 & 3     2 & 3    2 & 3     2 & 3    2 & 3

  Note: Pins designated should be in the closed position.

                            CPU SPEED SELECTION

      Speed              JK1                JK2                JK3

      75MHz           Pins 2 & 3         Pins 1 & 2         Pins 2 & 3
                        closed            closed             closed

      90MHz           Pins 1 & 2         Pins 1 & 2         Pins 1 & 2
                        closed            closed             closed

      100MHz          Pins 2 & 3         Pins 2 & 3         Pins 1 & 2
                        closed            closed             closed

      120MHz          Pins 1 & 2         Pins 1 & 2         Pins 1 & 2
                        closed            closed             closed

      133MHz          Pins 2 & 3         Pins 2 & 3         Pins 1 & 2
                        closed            closed             closed

          CPU VOLTAGE SELECTION

       Voltage               JVR

        3.3v          Pins 1 & 2 closed

        3.45v         Pins 3 & 4 closed

        3.6v          Pins 5 & 6 closed