UNIDENTIFIED

P54C MAINBOARD

Processor         Pentium
Processor Speed   75/90/100MHz
Chip Set          Unidentified
Max. Onboard DRAM 768MB
Cache             256/512/1024KB
BIOS              Award
Dimensions        330mm x 218mm
I/O Options       32-bit PCI slots (4), green PC connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Speaker                   CN1       PCI feature connector       J11

  Power LED & keylock       CN2       PCI feature connector       J12

  Reset switch              CN3       Green PC connector          JP10

  Turbo LED                 CN4       32-bit PCI slots          PC1 - PC4

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   CMOS memory normal operation            JP1              Open

      CMOS memory clear                       JP1             Closed

      ADS select normal operation             JP4              Open

      ADS select delay ADS                    JP4             Closed

  »   BIOS type select EPROM                  JP8              Open

      BIOS type select 5v                     JP8           pins 2 & 3
                                                              closed

      BIOS type select 12v                    JP8           pins 1 & 2
                                                              closed

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       2MB        (2) 256K x 36         NONE            NONE

       4MB        (2) 256K x 36    (2) 256K x 36        NONE

       4MB        (2) 512K x 36         NONE            NONE

       6MB        (2) 256K x 36    (2) 256K x 36    (2) 256K x 36

       6MB        (2) 256K x 36    (2) 512K x 36        NONE

       8MB        (2) 512K x 36    (2) 512K x 36        NONE

       8MB         (2) 1M x 36          NONE            NONE

      12MB        (2) 512K x 36    (2) 512K x 36    (2) 512K x 36

      12MB         (2) 1M x 36     (2) 512K x 36        NONE

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

      16MB         (2) 1M x 36     (2) 512K x 36    (2) 512K x 36

      16MB         (2) 2M x 36          NONE            NONE

      20MB         (2) 1M x 36      (2) 1M x 36     (2) 512K x 36

      20MB         (2) 2M x 36     (2) 512K x 36        NONE

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

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

      24MB         (2) 2M x 36     (2) 512K x 36    (2) 512K x 36

      32MB         (2) 4M x 36          NONE            NONE

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

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

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

      48MB         (2) 4M x 36      (2) 1M x 36      (2) 1M x 36

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

      64MB         (2) 8M x 36          NONE            NONE

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

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

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

      96MB         (2) 8M x 36      (2) 2M x 36      (2) 2M x 36

      96MB         (2) 4M x 36      (2) 4M x 36      (2) 4M x 36

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

      128MB        (2) 8M x 36      (2) 4M x 36      (2) 4M x 36

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

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

                  DRAM CONFIGURATION (CON’T)

      Size          Bank 0          Bank 1          Bank 2

     256MB       (2) 16M x 36     (2) 8M x 36    (2) 8M x 36

     256MB       (2) 32M x 36        NONE            NONE

     512MB       (2) 32M x 36    (2) 32M x 36        NONE

     768MB       (2) 32M x 36    (2) 32M x 36    (2) 32M x 36

                            CACHE CONFIGURATION

      Size           Bank 0          Bank 1                TAG

     256KB         (4) 32K x 8    (4) 32K x 8     (1) 8K/(1)16K/(1) 32K x
                                                            8

     512KB         (4) 64K x 8    (4) 64K x 8       1)16K/(1) 32K x 8

      1MB         (4) 128K x 8    (4) 128K x 8         (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JP17                 JP18

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

        512KB          pins 1 & 2 closed   pins 2 & 3 closed

         1MB           pins 2 & 3 closed   pins 2 & 3 closed

                CPU SPEED CONFIGURATION

           Speed                        JP9

           75MHz                       Open

           90MHz                 pins 1 & 2 closed

           100MHz            pins 1 & 2, 3 & 4 closed