
AMERICAN MEGATRENDS, INC.

MEGAPRO

Processor               Pentium Pro
Processor Speed         133/150/166/180/200MHz
Chip Set                Unidentified
Video Chip Set          None
Maximum Onboard Memory  512MB (EDO supported)
Maximum Video Memory    None
Cache                   256/512KB (located on Pentium Pro CPU)
BIOS                    AMI
Dimensions              355mm x 304mm
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), VGA
                        interface, IR connector, VRM connectors (2), USB
                        connectors (2)
NPU Options             None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  CPU fan                     J2       PS/2 mouse interface        P8

  CPU fan                     J3       Floppy drive               P10
                                       interface

  Chassis door connector     J12       IDE interface 1            P11

  IDE interface LED          J13       Parallel port              P12

  Speaker                    J16       IDE interface 2            P13

  Chassis fan power          J18       USB connector 1            P14

  Green PC connector         J21       USB connector 2            P15

  Power LED & keylock        J23       VGA connector              P20

  Turbo LED                  J26       32-bit PCI slots         PC1 - PC4

  Reset switch               J28       VRM connector 1            VRM1

  Serial port 1               P4       VRM connector 2            VRM2

  Serial port 2               P5

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Factory configured - do not alter       J11              Open

     Factory configured - do not alter       J14           Pins 1 & 2
                                                              closed

      PS/2 mouse IRQ12 enabled                J15           Pins 2 & 3
                                                              closed

      PS/2 mouse IRQ12 disabled               J15           Pins 1 & 2
                                                              closed

     On board PCI VGA enabled                J19              Open

      On board PCI VGA disabled               J19             Closed

     PCI IRQ disabled                        J20             Closed

      PCI IRQ enabled                         J20              Open

     Server management SMI disabled          J22              Open

      Server management SMI enabled           J22             Closed

     External SMI disabled                   J25              Open

      External SMI enabled                    J25             Closed

     Factory configured - do not alter       J27              Open

     CMOS memory normal operation            J29              Open

      CMOS memory clear                       J29             Closed

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

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

     24MB       (2) 1M x 36   (2) 1M x 36    (2) 1M x 36       None

     24MB       (2) 1M x 36   (2) 2M x 36        None          None

     24MB       (2) 2M x 36   (2) 1M x 36        None          None

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

     32MB       (2) 2M x 36   (2) 1M x 36    (2) 1M x 36       None

     32MB       (2) 2M x 36   (2) 2M x 36        None          None

                        DRAM CONFIGURATION (CON'T)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     32MB        (2) 4M x 36       None           None           None

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

     40MB        (2) 1M x 36   (2) 4M x 36        None           None

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

     40MB        (2) 4M x 36   (2) 1M x 36        None           None

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

     48MB        (2) 2M x 36   (2) 4M x 36        None           None

     48MB        (2) 4M x 36   (2) 1M x 36    (2) 1M x 36        None

     56MB        (2) 2M x 36   (2) 2M x 36    (2) 2M x 36    (2) 1M x 36

     56MB        (2) 4M x 36   (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     64MB        (2) 4M x 36   (2) 2M x 36    (2) 2M x 36        None

     64MB        (2) 4M x 36   (2) 4M x 36        None           None

     64MB        (2) 8M x 36       None           None           None

     72MB        (2) 4M x 36   (2) 4M x 36    (2) 1M x 36        None

     72MB        (2) 8M x 36   (2) 1M x 36        None           None

     80MB        (2) 2M x 36   (2) 8M x 36        None           None

     80MB        (2) 4M x 36   (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     80MB        (2) 8M x 36   (2) 1M x 36    (2) 1M x 36        None

     88MB        (2) 8M x 36   (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     96MB        (2) 4M x 36   (2) 4M x 36    (2) 4M x 36        None

     96MB        (2) 4M x 36   (2) 8M x 36        None           None

     96MB        (2) 8M x 36   (2) 2M x 36    (2) 2M x 36        None

     112MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 2M x 36

     112MB       (2) 8M x 36   (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     128MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     128MB       (2) 8M x 36   (2) 4M x 36    (2) 4M x 36        None

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 16M x 36      None           None           None

     136MB       (2) 16M x 36  (2) 1M x 36        None           None

     144MB       (2) 16M x 36  (2) 2M x 36        None           None

     144MB       (2) 16M x 36  (2) 1M x 36    (2) 1M x 36        None

     152MB       (2) 16M x 36  (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     160MB       (2) 16M x 36  (2) 4M x 36        None           None

     160MB       (2) 8M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     160MB       (2) 16M x 36  (2) 2M x 36    (2) 2M x 36        None

     176MB       (2) 16M x 36  (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     192MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36        None

     192MB       (2) 16M x 36  (2) 4M x 36    (2) 4M x 36        None

     192MB       (2) 16M x 36  (2) 8M x 36        None           None

     200MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 1M x 36

                        DRAM CONFIGURATION (CON'T)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     208MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 2M x 36

     224MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 4M x 36

     224MB       (2) 16M x 36  (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     256MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     256MB       (2) 16M x 36  (2) 8M x 36    (2) 8M x 36        None

     256MB       (2) 16M x 36  (2) 16M x 36       None           None

     264MB       (2) 16M x 36  (2) 16M x 36   (2) 1M x 36        None

     288MB       (2) 16M x 36  (2) 16M x 36   (2) 4M x 36        None

     320MB       (2) 16M x 36  (2) 16M x 36   (2) 8M x 36        None

     320MB       (2) 16M x 36  (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     384MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36       None

     400MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36   (2) 2M x 36

     416MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36   (2) 4M x 36

     512MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36   (2) 16M x 36

  Note: Board accepts EDO memory.

                      CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium Pro CPU.

                            CPU SPEED SELECTION

  CPU speed     Clock     Multiplier       J7          J8          J9
               speed

   133MHz      66MHz          2x          Open       Closed       Open

   150MHz      60MHz         2.5x        Closed       Open       Closed

   166MHz      66MHz         2.5x         Open       Closed       Open

   180MHz      60MHz          3x         Closed       Open       Closed

   200MHz      66MHz          3x          Open       Closed       Open

                            CPU SPEED SELECTION

  CPU speed     Clock      Multiplier       J10         J17         J24
                speed

   133MHz       66MHz          2x         Closed     1 & 2, 3 &    1 & 2
                                                      4, 5 & 6,
                                                       7 & 8

   150MHz       60MHz         2.5x         Open      3 & 4, 5 &    1 & 2
                                                      6, 7 & 8

   166MHz       66MHz         2.5x        Closed     3 & 4, 5 &    1 & 2
                                                      6, 7 & 8

   180MHz       60MHz          3x          Open      1 & 2, 5 &    1 & 2
                                                      6, 7 & 8

   200MHz       66MHz          3x         Closed     1 & 2, 5 &    1 & 2
                                                      6, 7 & 8

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

          Voltage                     J4                      J5

              None                   Open                    Open

              2.1v                   7 & 8                  7 & 8

              2.2v                   5 & 6                  5 & 6

              2.3v               5 & 6, 7 & 8            5 & 6, 7 & 8

              2.4v                   3 & 4                  3 & 4

              2.5v               3 & 4, 7 & 8            3 & 4, 7 & 8

              2.6v               3 & 4, 5 & 6            3 & 4, 5 & 6

              2.7v            3 & 4, 5 & 6, 7 & 8    3 & 4, 5 & 6, 7 & 8

              2.8v                   1 & 2                  1 & 2

              2.9v               1 & 2, 7 & 8            1 & 2, 7 & 8

              3.0v               1 & 2, 5 & 6            1 & 2, 5 & 6

              3.1v            1 & 2, 5 & 6, 7 & 8    1 & 2, 5 & 6, 7 & 8

              3.2v               1 & 2, 3 & 4            1 & 2, 3 & 4

             3.3v            1 & 2, 3 & 4, 7 & 8    1 & 2, 3 & 4, 7 & 8

              3.4v            1 & 2, 3 & 4, 5 & 6    1 & 2, 3 & 4, 5 & 6

              3.5v            1 & 2, 3 & 4, 5 & 6,   1 & 2, 3 & 4, 5 & 6,
                                     7 & 8                  7 & 8

  Note: Pins designated should be in the closed position.

                           3.3V POWER SELECTION

         Setting                     J1                      J6

  From voltage regulator            Open             1 & 2, 3 & 4, 5 & 6

    From power supply       1 & 2, 3 & 4, 5 & 6             Open

  Note: Pins designated should be in the closed position.

