AMERICAN MEGATRENDS, INC.

EXCALIBUR PCI-II PENTIUM ISA

Processor              Pentium
Processor Speed        60/66MHz
Chip Set               AMI
Max. Onboard DRAM      128MB
Cache                  256/512KB
BIOS                   AMI
Dimensions             330mm x 218mm
I/O Options            32-bit PCI slots (4), floppy drive interface, green
                       PC connector, IDE interfaces (2), parallel port,
                       PS/2 mouse port, serial ports (2)
NPU Options            None

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Green PC connector         J1       IDE interface LED           J28

  PS/2 mouse port           J13       Serial port 1                J4

  Power LED & keylock       J15       Serial port 2                J5

  Speaker                   J17       Parallel port                J7

  Reset switch              J18       Floppy drive interface       J8

  Turbo switch              J20       IDE interface               J10
                                      (secondary)

  Turbo LED                 J24       IDE interface               J11
                                      (primary)

  Green PC connector        J25       32-bit PCI slots          SL1 - SL4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Cache write mode select write           J29              Open
      back

      Cache write mode select write           J29             Closed
      through

  »   Parallel port IRQ select IRQ7           J37           pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ5           J37           pins 2 & 3
                                                              closed

  »   Serial port 2 IRQ select IRQ3           J38           pins 1 & 2
                                                              closed

      Serial port 2 IRQ select IRQ4           J38           pins 2 & 3
                                                              closed

  »   Serial port 1 IRQ select IRQ4           J39           pins 1 & 2
                                                              closed

      Serial port 1 IRQ select IRQ3           J39           pins 2 & 3
                                                              closed

  »   On board mouse enabled                  J40           pins 1 & 2
                                                              closed

      On board mouse disabled                 J40           pins 2 & 3
                                                              closed

  »   Factory configured - do not             J47              Open
      alter

  »   CMOS memory normal operation            J48              Open

      CMOS memory clear                       J48             Closed

  »   Factory configured - do not             J51              Open
      alter

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

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

       4MB        (2) 512K x 36         NONE

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

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

      16MB         (2) 2M x 36          NONE

      20MB        (2) 512K x 36     (2) 2M x 36

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

      32MB         (2) 4M x 36          NONE

      36MB        (2) 512K x 36     (2) 4M x 36

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

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

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

      64MB         (2) 8M x 36          NONE

      80MB         (2) 2M x 36      (2) 8M x 36

      128MB        (2) 8M x 36      (2) 8M x 36

      128MB        (2) 16M x 36         NONE

     CACHE CONFIGURATION

     Size          Bank 0

     256KB      (8) 32K x 8

     512KB      (8) 64K x 8

                        CACHE JUMPER CONFIGURATION

      Size               J21               J22                 J23

      256KB           pins 1 & 2        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

      512KB           pins 2 & 3        pins 2 & 3      pins 2 & 3 closed
                       closed             closed

               CPU OUTPUT SIGNAL BUFFER CONFIGURATION

         Type                   J30                    J32

     Normal system              Open                   Open

     Loaded system             Closed                  Open

  Extra loaded system          Closed                 Closed

  Note: The location of jumpers J30 & J32 are unidentified.

                  DMA CHANNEL CONFIGURATION

     DMA channel             J43                  J44

        None                 Open                 Open

        DRQ0           pins 1 & 2 closed   pins 1 & 2 closed

        DRQ1           pins 3 & 4 closed   pins 3 & 4 closed

        DRQ3           pins 5 & 6 closed   pins 5 & 6 closed